EXERCISE MACHINE COMBINING A PHYSICAL WEIGHT RESISTANCE SOURCE AND AN ELECTROMECHANICAL RESISTANCE SOURCE

Abstract

The present application generally relates to an exercise machine. The exercise machine comprises a body, a physical weight, an electromechanical resistance module, a pulley system attached to the body and a user interface. The physical weight provides a first resistance source for a first cable, while the electromechanical resistance module provides a second resistance source for a second cable. The pulley system is configured to integrate a resistance from the first and second resistance sources into a single output resistance by guiding the first cable and second cable to an adapter to which the first cable and the second cable are attached. The user interface is connected to the adapter and serves to apply a force against the single output resistance.

Claims

1. An exercise machine, comprising: a. a body, b. a physical weight providing a first resistance source for a first cable, c. an electromechanical resistance module providing a second resistance source for a second cable, d. a pulley system attached to the body configured to integrate the resistance from the first and second resistance sources into a single output resistance by guiding the first cable and second cable to an adapter to which the first cable and the second cable are attached, e. a user interface connected to the adapter for applying a force against the single output resistance.

2. The exercise machine of claim 1, wherein the pulley system comprises at least a first pulley and a second pulley, wherein the first pulley guides the first cable and the second pulley guides the second cable in such way that the first cable and the second cable are oriented parallel to each other.

3. The exercise machine of claim 1, wherein the first cable and the second cable are continuously attached to the adapter via a double cable coupling.

4. The exercise machine of claim 1, wherein the first cable and the second cable are attached to the adapter in such way that the adapter can pull the first cable and the second cable parallel to each other, when force is applied to the adapter.

5. The exercise machine of claim 2, wherein the adapter comprises a force application point for applying a force against the single output resistance, wherein the force application point is located centrally between the parallel-aligned first and second cables, and wherein the user interface is connected to force application point.

6. The exercise machine of claim 1, wherein the adapter comprises two sleeves which respectively receive the first and second cables, wherein the first and second cables, which are guided in parallel, have a maximum distance from one another which lies in a range between 5 mm-200 mm.

7. The exercise machine of claim 1, wherein the pulley system comprises four pulleys, wherein a first pulley and a third pulley guide the first cable and a second pulley and a fourth pulley guide the second cable, wherein the first pulley and the second pulley are arranged on a first axis, wherein the third pulley and the fourth pulley are arranged on a second axis, the first axis and the second axis being arranged parallel to each other.

8. The exercise machine of claim 7, wherein the first axis and the second axis have a different distance in respect to an attachment surface of the body which is parallel aligned to the first axis and the second axis.

9. The exercise machine of claim 1, wherein the electromechanical resistance module comprises an electric motor with a winch on which the second cable can be wound and unwound.

10. The exercise machine of claim 1, wherein the electromechanical resistance module comprises a housing which serves as a structural component of the body.

11. The exercise machine of claim 1, wherein the electromechanical resistance module comprises a control unit with a data processing unit for controlling the second resistance source and a communication unit for data communication.

12. The exercise machine of claim 11, wherein the user interface comprises means for providing an input signal to the control unit.

13. The exercise machine of claim 11, wherein the exercise machine further comprises a sensor system configured to acquire the resistance of the first resistance source or the second resistance source or the single output resistance or the movement of the physical weight or the force applied to the adapter or the movement of the first cable, the second cable or the adapter, wherein the sensor system comprises means for providing acquired data to the control unit.

14. The exercise machine of claim 13, wherein the electromechanical resistance module and the sensor system is in data communication with an external device having a data processing unit and a communication unit, wherein the sensor system comprises means for providing acquired data to the external device, wherein the user interface comprises means for providing an input signal to the external device, wherein in external device is configured to process the provided data of the sensor system or the provided input data of the user interface or to transmit control commands to the electromechanical resistance module.

15. A Method for adjusting a force to be applied by a user to an exercise machine comprising: a. a body, b. a physical weight providing a first resistance source for a first cable, c. an electromechanical resistance module providing a second resistance source for a second cable, wherein the electromechanical resistance module comprises a control unit with a data processing unit for controlling the second resistance source and a communication unit for data communication, d. a pulley system attached to the body configured to integrate the resistance from the first and second resistance sources into a single output resistance by guiding the first cable and second cable to an adapter to which the first cable and the second cable are attached, e. a user interface connected to the adapter for applying a force against the single output resistance, wherein the user interface comprises means for providing an input signal to the control unit, f. a sensor system configured to acquire a resistance of the first resistance source or the second resistance source or the single output resistance or a movement of the physical weight or a force applied to the adapter or a movement of the first cable, the second cable or the adapter, wherein the sensor system comprises means for providing acquired data to the control unit, the method comprising the following steps: i. applying a force against the single output resistance by the user interface, ii. acquiring the movement of the physical weight, in particular a speed or an acceleration of the movement, by the sensor system, iii. providing the acquired data of the sensor system to the control unit of the electromechanical resistance module, iv. detecting by the control unit of a decrease in the speed or acceleration in relation to previously acquired data by the sensor system, v. adjusting the second resistance source by the control unit, or i. applying a force against the single output resistance by the user interface, ii. providing an input signal to the control unit by the user interface, iii. adjusting the second resistance source by the control unit, or i. providing an input signal to the control unit of the electromechanical resistance module which sets the control unit in an automatic training mode, ii. applying a force against the single output resistance by the user interface, causing the physical weight to be lifted, iii. reducing the force against the single output resistance causing the physical weight to be lowered, iv. adjusting the second resistance source by the control unit.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0075] FIG. 1 shows a preferred embodiment of the exercise machine in a perspective view.

[0076] FIG. 2 shows a partial view of a preferred embodiment of the exercise machine, particularly the pulley system.

[0077] FIG. 3 shows another partial view of a preferred embodiment of the exercise machine, particularly the pulley system.

[0078] FIG. 4 shows a preferred embodiment of the exercise machine from a top view.

[0079] FIG. 5 shows a preferred embodiment of the electromechanical resistance module in three different views: frontal, side, and perspective.

[0080] FIG. 6 shows a further preferred embodiment of the electromechanical resistance module in three different views: frontal, side and perspective.

[0081] FIG. 7 shows a further preferred embodiment of the electromechanical resistance module in three different views: frontal, side, top and perspective.

[0082] FIG. 8 shows a further preferred embodiment of the electromechanical resistance module in three different views: frontal, side, top and perspective.

[0083] FIG. 9 shows a preferred embodiment of the user interface.

[0084] FIG. 10 shows a further preferred embodiment of the user interface.

[0085] FIG. 11 shows a further preferred embodiment of the user interface.

[0086] FIG. 12 shows a preferred embodiment of the sensor system.

[0087] FIG. 13 shows the preferred embodiment of the sensor system of FIG. 12, without a housing from front view.

[0088] FIG. 14 shows the preferred embodiment of the sensor system of FIG. 12, without a housing from back view.

[0089] FIG. 15 shows a schematic illustration of a preferred embodiment of the exercise machine connected to an external device.

[0090] FIG. 16 shows a further preferred embodiment of the exercise machine in a perspective view.

[0091] FIG. 17 shows a partial view of a further preferred embodiment of the exercise machine.

[0092] FIG. 18 shows a further preferred embodiment of the exercise machine in a perspective view.

[0093] FIG. 19 shows a partial view of a further preferred embodiment of the exercise machine.

[0094] FIG. 20 shows a further preferred embodiment of the exercise machine in a perspective view.

[0095] FIG. 21 shows a partial view of a further preferred embodiment of the exercise machine.

[0096] FIG. 22 shows a flowchart outlining a method for adjusting the force applied by a user to a preferred exercise machine.

[0097] FIG. 23 shows a flowchart outlining another method for adjusting the force applied by a user to a preferred exercise machine.

[0098] FIG. 24 shows a flowchart outlining another method for adjusting the force applied by a user to a preferred exercise machine.

DETAILED DESCRIPTION OF THE FIGURES

[0099] FIG. 1 shows a preferred embodiment of the exercise machine 1 in a perspective view. The exercise machine 1 is designed as a half power rack, having a body 3, which is formed in particular by frame elements. The exercise machine 1 comprises a first physical weight 5, a second physical weight 6, an electromechanical resistance module 7, a first pulley system 9 and a second pulley system 10 both attached to the body 3 and a user interface 11.

[0100] The first physical weight 5 provides a resistance source for a first cable 13. Simultaneously, the second physical weight 6 provides a resistance source for a third cable 15. The electromechanical resistance module 7 on the other hand provides a resistance source for a second cable 13 and a fourths cable 16.

[0101] The first and second physical weights 5, 6 each are iron weights formed as weight stacks divided into several weight increments. The user can adjust the weight resistance by moving a pin 18 up or down between different weight blocks.

[0102] In general, a weight stack is preferably a series of rectangular weight plates, usually made of metal, that are stacked and can be selected for use by inserting a pin 18 into the desired weight level. The user can adjust the resistance by moving the pin 18 to a different weight plate. The weight stack is guided up and down by a pair of vertical rods and a weight sword 43, which is connected to a cable 13, 15 and positioned between the vertical rods.

[0103] The first pulley system 9 guides the first cable 13 and second cable 14 to an adapter 17 to which the first cable 13 and the second cable 14 are attached. This configuration enables the two generated resistances from the first physical weight 5 and the electromechanical resonance module 7 to be combined into a single output resistance.

[0104] Similarly, the second pulley system 10 guides the third cable 15 and fourth cable 16 to an adapter 17, to which the third cable 15 and the fourth cable 16 are attached. This arrangement merges the resistances from the second physical weight 6 and the electromechanical resistance module 7 also into a single output resistance.

[0105] The user interface is connected to both adapters 17 and serves to apply a force against both single output resistances. In this regard, the user interface 11 is designed as a long bar handle, which has an attachment means 37 at each of its distal ends so that the user interface 11 can be attached to the respective adapters 17 at both ends.

[0106] The body 3 comprises four vertical posts 24 and horizontal bars 26 at the top and bottom. The electromechanical resistance module 7 comprises a housing which is preferably made from metal and can act as a structural element of the exercise machine. In this regard the electromechanical resistance module 7 can replace a traditional crossbar or horizontal bar 26 on the top of the body 3 which is designed as a power rack.

[0107] The electromechanical resistance module 7 remains continuously active while a user performs exercises on the exercise machine 1. Even when no electromechanical resistance is needed, the electromechanical resistance module 7 must be operational to retract the second and fourth cables 14, 16 when the user releases force during the exercise, allowing the physical weights 5, 6 to return to its original position. Therefore, the electromechanical resistance module 7 must be connected to a power source 28, for example, the power grid. The module 7 is equipped with a plug 30 for connection to the power source 28.

[0108] The electromechanical resistance module 7 can comprise multiple units, each generating an independent electromechanical resistance. The units are all housed within the same housing of the electromechanical resistance module 7 and can share a control unit. Each independent unit can be combined with a weight source to generate a single resistance output. Additionally, there can be units that operate without connection to a physical weight, producing resistance solely based on electromechanical resistance. In this regard the module 7 comprises an output cable 32 for this generated resistance.

[0109] The electromechanical resistance module 7 can comprises a control unit 34 (not shown in FIG. 1) with a data processing unit for controlling the electromechanical resistance sources and a communication unit for data communication. The control unit 34 is able to control each independent unit generating electromechanical resistance included in the electromechanical resistance module 7.

[0110] FIG. 2 shows a partial view of a preferred embodiment of the exercise machine 1, particularly the first pulley system 9. FIG. 2 corresponds to a detailed section of FIG. 1. In this respect, reference is made to the descriptions of FIG. 1.

[0111] The pulley system 9 comprises four pulleys 19, 20, 21, 22, wherein a first pulley 19 and a third pulley 21 guide the first cable 13 and a second pulley 20 and a fourth pulley 22 guide the second cable 14. In this regard, the first pulley 19 and the second pulley 20 are arranged on a first axis 23. The third pulley 21 and the fourth pulley 22 are arranged on a second axis 25, the first axis 23 and the second axis 25 being arranged parallel to each other.

[0112] The first axis 23 and the second axis 25 have different distances relative to an attachment surface 27 of the body 3, which is aligned parallel to both the first axis 23 and the second axis 25. The attachment surface 27 is formed by one side of a bracket mounted on a post 24 of the body 3. This bracket is height-adjustable and can be fixed at various positions along the post 24. To facilitate this, the post 24 features a series of holes into which a pin or bolt from the bracket can be inserted.

[0113] The pulley system 9 guides first cable 13 and the second cable 14 in such way that the first cable 13 and the second cable 14 are oriented parallel to each other. The first cable 13 and the second cable 14 are continuously attached to the adapter 17 via a double cable coupling. The cable coupling comprises two sleeves 29 which respectively receive the first cable 13 and second cables 14, wherein the first cable 13 and the second cable 14 have a maximum distance from one another which lies a range between 30 mm-80 mm. The sleeves 29 are provided with holes into which clamping screws can be screwed in order to fix the cables 13,14 in the sleeves 29.

[0114] The first cable 13 and the second cable 14 are attached to the adapter 17 in such way that the adapter 17 can pull the first cable 13 and the second cable 14 parallel to each other, when force is applied to the adapter 17. The adapter 17 comprises a force application point for applying a force against the single output resistance, wherein the force application point is located centrally between the parallel-aligned first and second cables 13, 14. The user interface 11 is connected to force application point via a carabiner hook.

[0115] The electromechanical resistance module 7 comprises an electric servo motor 31 with a winch 33 on which the second cable 14 can be wound and unwound. The electromechanical resistance module 7 comprises an electric servo motor 31 with a winch 33 on which the second cable 14 can be wound and unwound. Additionally, the electromechanical resistance module 7 includes other electric motors 31 with winches 33. One of these electric motors 31, in combination with a winch 33, is used to provide purely electromechanical resistance without the combination of a physical weight 5, 6. Another electric motor 31 operates a winch 33 that can wind and unwind the fourth cable 16 mentioned in FIG. 1 (not shown in FIG. 2). All motors 31 and winches 33 are housed within the housing of the electromechanical resistance module 7 (not illustrated in FIG. 2).

[0116] Moreover, the electromechanical resistance module 7 comprises a control unit 34 with a data processing unit for controlling the resistance source provided from the electric motor 31 and a communication unit for data communication. All provided electric motors 31 in the electromechanical resistance module 7 can be controlled by the control unit 34.

[0117] FIG. 3 shows another partial view of a preferred embodiment of the exercise machine 1, in particular the first pulley system 9. The embodiment shown in FIG. 3 corresponds to the embodiments shown in FIGS. 1-2. In this respect, reference is made to the descriptions of these figures.

[0118] In FIG. 3, it is particularly notable that the user interface 11, designed as a straight bar or long bar handle, includes a rotational adjustment ring 36. This rotational adjustment ring 36 allows input to be provided to the control unit 34 or the electromechanical resistance module7. Based on the user's input, the control unit 34 can adjust the motor-based resistance source.

[0119] FIG. 4 shows a preferred embodiment of the exercise machine from a top view. The embodiment shown in FIG. 4 corresponds largely to the embodiments shown in FIGS. 1-3 In this respect, reference is made to the descriptions of these figures.

[0120] The difference between the embodiment of FIG. 4 and the embodiment of FIGS. 1-3 lies in particular the design of the user interface 11. The embodiment in FIG. 4 comprises two user interfaces 11, 12 instead of one single user interface 11, in particular two independently movable handles instead of one straight bar.

[0121] The difference between the embodiment in FIG. 4 and the embodiments in FIGS. 1-3 lies particularly in the design of the user interface 11. The embodiment in FIG. 4 comprises two user interfaces 11, 12, instead of a single user interface 11. Specifically, it features two independently movable handles instead of one straight bar.

[0122] Each handle 11, 12 is connected to an adapter 17 which provides a single output resistance generated by a physical weight 5, 6 in combination with an electromechanical resistance module 7. In addition, it can be seen that the housing of the electromechanical resistance module 7 is mounted on a crossbar 26. The housing comprises a support surface which allows it to be fixed to the top of the crossbar 26.

[0123] FIG. 5 shows a preferred embodiment of the electromechanical resistance module 7 in three different views: frontal (a), side (b), and perspective (c). The electromechanical resistance module 7 features a cuboid-shaped housing. It has preferably a width of 86 mm, a height of 178 mm, and a length of 1080 mm. This design is particularly well-suited to replace a crossbar 26 in a power rack and to serve as a structural component of the power rack.

[0124] FIG. 6 shows another preferred embodiment of the electromechanical resistance module 7 in three different views: frontal (a), side (b), and perspective (c). Like the embodiment in FIG. 5, the housing of the electromechanical resistance module 7 is also cuboid-shaped. It has preferably a width of 143 mm, a height of 400 mm, and a length of 1080 mm. This design is also well-suited to serve as a structural component for an exercise machine 1.

[0125] FIG. 7 shows another preferred embodiment of the electromechanical resistance module 7 in four different views: frontal a), side b), top c), and perspective d). The electromechanical resistance module 7 depicted in FIG. 7 partially corresponds to the embodiment from FIG. 5, with the difference that an attachment ledge has been added to the cuboid-shaped body of the housing.

[0126] In the frontal view a), the electromechanical resistance module 7 forms a rectangle preferably with a length of 1090 mm and a height of 170 mm. The side view b) shows a rotated L-shape due to the attachment ledge, with one leg of the L serving as the attachment ledge. The attachment ledge has a height of 65 mm and a length of 724 mm. The attachment ledge is centrally placed on the cuboid body, creating a step on both sides of the electromechanical resistance module 7 when viewed from the top c).

[0127] The width of the electromechanical resistance module 7 where the ledge is present measures preferably 255 mm, and where the steps are formed, i.e., where there is no ledge, the module 7 has preferably a width of 104 mm.

[0128] FIG. 8 shows a further preferred embodiment of the electromechanical resistance module 7 in three different views: frontal a), side b), top c) and perspective d). The embodiment of the electromechanical resistance module 7 shown in FIG. 8 comprises a housing with a quadrangular shape with a laterally protruding bridge 47.

[0129] In the frontal view a), the electromechanical resistance module 7 has preferably a height of 170 mm, while the laterally protruding bridge 47 has preferably a height of 93 mm. In the side view b), the electromechanical resistance module 7 appears as a rectangle preferably with a length of 360 mm and a height of 170 mm.

[0130] In the top view c), the electromechanical resistance module 7 is depicted in an L-shape. The width of the vertical part of the L is preferably 160 mm, while the height of the horizontal part is preferably 93 mm. In the perspective view d), it can be seen that the electromechanical resistance module 7 has a cuboid main body with a laterally protruding bridge 47. This bridge 47 can accommodate a pulley, which can guide at least a cable of the electromechanical resistance module 7.

[0131] FIG. 9 shows a preferred embodiment of the user interface 11. The user interface 11 is in the form of a single handle. The single handle comprises an attachment part 37 and a grip 39. A rotational adjustment ring 36 and a button 38 are attached to the grip 39. The rotational adjustment ring 36 can be configured to make adjustments to the control unit 34 of the electromechanical resistance module 7, while the button 38 can stop the resistance applied by the electromechanical resistance module 7 by transmitting appropriate input signals to the control unit 34. The handle is preferably battery powered, and the battery can be charged using a USB-C cable by connecting it directly to the electromechanical resistance module 7. The signal from the handle can be transmitted wirelessly to the electromechanical resistance module 7. Accordingly, the user interface 11 can further comprise a communication unit and a data processing unit.

[0132] FIG. 10 shows another preferred embodiment of the user interface 11. The user interface 11 is a long bar handle. The long bar handle is equipped with a rotational adjustment ring 36 and a button 38, both positioned near where the user would grip the handle while performing exercises and applying force. On the sides of the long bar handle, attachment parts 37 are provided to connect the long bar handle to adapters 17. The long bar handle can be attached to two adapters.

[0133] By rotating the rotational adjustment ring 36, the user can adjust the electromechanical resistance up or down, and by pressing the button 38 inside the rotational adjustment ring 36, the user can start or stop the electromechanical resistance. The handle is preferably battery-powered, and the battery can be charged with a USB-C cable by plugging it directly into the electromechanical resistance module 7. The signal from the handle is preferably transferred wirelessly to the electromechanical resistance module 7. Additionally, the user interface 11 can include a communication unit and a data processing unit.

[0134] FIG. 11 shows another preferred embodiment of the user interface 11. The user interface 11 is designed as a lat-pulldown handle. It features two grips 39 connected by an attachment part 37. One of the grips 39 is equipped with a button 38 and a rotational adjustment ring 36.

[0135] By rotating the rotational adjustment ring 36, the user can adjust the electromechanical resistance up or down, and by pressing the button 38 inside the ring, the user can start or stop the electromechanical resistance. The handle is preferably battery-powered, and the battery can be charged with a USB-C cable by plugging it directly into the electromechanical resistance module 7. The signal from the handle is preferably transferred wirelessly, preferably via Bluetooth or Infrared, to the electromechanical resistance module 7. Further, the user interface 11 can comprise a communication unit and a data processing unit.

[0136] FIG. 12 shows a preferred embodiment of the sensor system 35. The sensor system 35 comprises a motion sense box 40, which houses a load cell 41, a three-axis accelerometer 42, and a rechargeable battery 44. The load cell 41 converts force into an electrical signal by measuring weight through the deformation or strain in a material when a load is applied. It is connected to the top of a weight sword 43. The three-axis accelerometer 42, attached to the back of the load cell 41, measures acceleration and the distance a weight is moved along three perpendicular axes (X, Y, and Z). Such three-axis accelerometer 42 are for example commonly used in smartphones to detect movement and direction. The rechargeable battery 44, located on the back of the load cell 41, powers the sensor system 35.

[0137] By combining the load cell 41 with the three-axis accelerometer 42, the sensor system 35 can for example detect weight measurement (how much physical weights the user has moved) and repetition counting (the number of repetitions the user has completed and the quality of each repetition, measured by the distance the physical weight has traveled).

[0138] The acquired data can be transferred to the electromechanical resistance module 7 and then passed to an external device 45 with a software application. The software application may use this data to display information to the user, analyze the weight moved and repetitions made, and to apply or adjust the training programs selected by the user.

[0139] FIG. 13 shows the preferred embodiment of the sensor system 35 from FIG. 12, without a housing, viewed from the front. It can be seen that the load cell 41 is connected to the weight sword 43 and a first cable 13.

[0140] FIG. 14 shows the preferred embodiment of the sensor system 35 from FIG. 12, without a housing, viewed from the back. It is apparent that the three-axis accelerometer 42 and the rechargeable battery of the motion sensing box 40 are all housed in a single housing.

[0141] FIG. 15 shows a schematic illustration of a preferred embodiment of the exercise machine 1 connected to an external device 45. In this configuration, the electromechanical resistance module 7 is in data communication with the user interface 11, the sensor system 35, and an external device 45, such as a smartphone, via Bluetooth. All components are equipped with the necessary communication means.

[0142] The user interface 11 can send input data to the control unit 34 of the electromechanical resistance module 7. The sensor system 35 is capable of transmitting acquired data to the electromechanical resistance module 7. The external device 45 is configured to send commands to the control unit 34 of the electromechanical resistance module 7. In addition, the electromechanical resistance module 7 is capable of providing the acquired data from the sensor system 35 to the external device 45 for reading and analysis.

[0143] The electromechanical resistance module 7 may collect multiple signal data points from the exercise machine 1. These data points can include the total weights moved from the sensor system 35 via Bluetooth Low Energy. It also may collect control signals from the user interface 11 via Bluetooth Low Energy, infrared, or 2.4 kHz standard. Additionally, it may measure Newton meters of resistance from the electric motors 31 via a physical connection with a controller. Finally, it may record the meters of cable moved per repetition from the electric motor 31 and winch 33 via a physical connection with a controller.

[0144] The external device 45 comprises preferably a software application. The software application may comprise predefined training programs that adjust the electromechanical resistance in the electromechanical resistance module 7. The user can select a starting weight on the physical weights 5, 6 (for example, 30 kg), and the dynamic program of the electromechanical resistance module 7, such as Pyramid training, which involves a gradual increase in resistance with each repetition followed by a gradual decrease. Additionally, the software application can be used for voice control of the electromechanical resistance module 7, including safety features. Safety features may comprise a Kill-Switch-Word to stop the electromechanical resistance module 7 by voice command or an automatic reduction in weights when sensors detect very slow and hesitant repetitions by the user, indicating user fatigue.

[0145] FIG. 16 shows another preferred embodiment of the exercise machine 1 in perspective view. This embodiment is based on the general principle of combining electromechanical resistance and physical weight resistance in a single output resistant described in the previous embodiments. In this regard, reference is made to the descriptions of the preceding figures.

[0146] The exercise machine 1 is designed as a modular attachment for power racks, such as rowing stations and lat-pulldowns. The electromechanical resistance module 7 is placed at the bottom of the exercise machine 1. The physical weights are plate-loaded from the side and are part of the lat-pulldown mechanism.

[0147] FIG. 17 shows a partial view of another preferred embodiment of the exercise machine 1. This figure corresponds to a detailed section of FIG. 16; hence, reference is made to the description of FIG. 16. The reference numerals are consistent between the figures.

[0148] FIG. 18 shows a further preferred embodiment of the exercise machine 1 in a perspective view. The exercise machine 1 is designed as a stand-alone strength machine, such as a lat-pulldown tower. The electromechanical resistance module 7 is placed on top of the exercise machine 1. The physical weights 5 consist of a single selectorized weight stack block at the back of the tower. Since the basic structure corresponds to the previously described embodiments in FIGS. 1-17, reference is made to the descriptions of these figures. The reference numerals are consistent throughout the figures.

[0149] FIG. 19 shows a partial view of a further preferred embodiment of the exercise machine 1. FIG. 19 corresponds to a detailed section of FIG. 18; therefore, reference is made to the description of FIG. 18. The reference numerals are consistent with those in FIG. 18.

[0150] FIG. 20 shows a further preferred embodiment of the exercise machine 1 in a perspective view. This figure also relies on the already described basic structure. Therefore, reference is made to all the aforementioned figures and their descriptions. The exercise machine 1 is designed as a squat rack with a single selectorized weight stack block at the back of the rack. The electromechanical resistance module 7 is placed on top of the squat rack and serves as a structural part instead of a crossbar.

[0151] FIG. 21 shows a partial view of a preferred embodiment of the exercise machine 1. FIG. 21 corresponds to a detailed section of FIG. 20; therefore, reference is made to the description of FIG. 20. The reference numerals are consistent with those in FIG. 20.

[0152] FIG. 22 is a flowchart illustrating a preferred method 1000 for adjusting the force to be applied by a user to an exercise machine 1. At 1002, method 1000 includes applying a force against the single output resistance by the user interface 11. At 1004, it involves acquiring the movement of the physical weight 5, in particular the speed and/or acceleration of the movement, by the sensor system 35. At 1006, the method includes providing the acquired data from the sensor system 35 to the control unit 34 of the electromechanical resistance module 7. At 1008, the control unit 34 detects a decrease in speed and/or acceleration in relation to previously acquired data from the sensor system 35. At 1010, the control unit 34 adjusts the second resistance source.

[0153] Handling a high number of physical weights 5 can be risky. By splitting between physical weights 5 and electromechanical resistance module 7, digital safety measures can be implemented to gradually reduce or completely turn off electromechanical resistance module 7 in case of danger.

[0154] When the exercise machine 1 detects that the user is getting tired, the sensor system 35 and/or the control unit 34 can notice the repetitions slowing down, by measuring slower three-axis accelerometer movements and longer fatigue breaks, and will decrease the electromechanical resistance.

[0155] For example, the user may select 40 kg of physical weights 5 and an electromechanical resistance equivalent to 20 kg. If the user feels fatigued during an exercise, the sensor system 35 and/or the control unit 34 will detect this by registering a slower push/pull of the physical weights 5, typically at the end of a set. The electromechanical resistance module 7 will then decrease the electromechanical resistance by 5 kg and subsequently by 1 kg with each subsequent repetition. This enables the user to continue the workout without having to stop due to high weights or fatigue, a feature not possible with conventional physical weights.

[0156] FIG. 23 shows a flowchart outlining a further preferred method 1000 for adjusting the force applied by a user to a preferred exercise machine 1. At 1002, the method 1000 includes applying a force against the single output resistance by the user interface 11. At 1003, it involves providing an input signal to the control unit 34 by the user interface 11. At 1010, the method 1000 includes adjusting the second resistance source by the control unit 34. This method 1000 allows the user to manually adjust and/or stop the resistance of the electromechanical resistance module 7 by the user interface 11. For this purpose, the user interface 11 includes input means such as a rotary adjustment ring 36 or a button 38.

[0157] FIG. 24 shows a flowchart outlining a further method 1000 for adjusting the force applied by a user to a preferred exercise machine 1. At 1001, an input signal is provided to the control unit 34 of the electromechanical resistance module 7, setting the control unit 34 in an automatic training mode. At 1002, the user applies a force against the single output resistance via the user interface 11, causing the physical weight 5 to be lifted. At 1005, the user reduces the force against the single output resistance, causing the physical weight 5 to be lowered. At 1010, the control unit 34 adjusts the second resistance source.

[0158] A comparison of the method 1000 described with conventional training can demonstrate the advantages of the preferred exercise machine 1.

[0159] For a lat-pulldown on a conventional power tower without the electromechanical resistance module 7, the user may start by selecting a warm-up weight, for example between 20 kg and 40 kg, depending on the user's strength and experience. After warming up, the user might perform three sets of the exercise using, for example, 60 kg of physical weight, with each set consisting of 12-15 repetitions.

[0160] During the workout, the user needs to stand up from the seated position every time they need to change the weight. This involves unhooking their thighs from under the thigh pads, stepping away from the bench, and adjusting the weights with the weight pin. The user then returns to the bench and secure their thighs under the pads again. In the final repetitions, as fatigue sets in, the user might struggle to complete the set. They could potentially perform 2-5 more repetitions and achieve maximum muscle tension if the weight could be reduced to 55 kg or 50 kg during the last few reps of the set. However, with a conventional weight system, this is not possible without interrupting the set for at least 10 seconds, including repositioning to manually change the weight.

[0161] As a result, the muscles do not perform optimally, and the time under tension is shorter than it could be if a gradual decrease in weights were possible. Additionally, constantly changing the weight every 2-3 repetitions becomes impractical and inefficient.

[0162] A preferred exercise machine 1, designed as a lat-pulldown with the electromechanical resistance module 7 on a power tower, may start similarly to traditional machines, with the user choosing a warm-up weight between 20 kg and 40 kg. The user might then select their desired training program on the electromechanical resistance module 7, in this case, drop sets, either via voice control or manually on a software application of an external device 45.

[0163] With the electromechanical resistance module 7, changing physical weights 5 during a set may become unnecessary. The electromechanical resistance module 7 can for example increase the electromechanical resistance equivalent to a total of 70 kg at the beginning of the exercise and gradually reduce the weight as fatigue is detected, decreasing the resistance in 1 kg increments to ensure maximum time under tension for the muscle. The user can remain seated and does not need to interrupt the set for weight changes.

[0164] Most importantly, these electromechanical resistance adjustments might be made every 2-3 repetitions while maintaining a 40 kg physical weight base, ensuring perfect visual, auditory, and inertia feedback from the physical weights 5. Additionally, the user can manually adjust the electromechanical resistance at any time by simply turning the rotation adjustment on the user interface 11 with one finger, if they prefer different weight settings than those automatically adjusted by the module.

[0165] Another example that falls under the described method 1000 is as follows: The user can set the physical weights to 40 kg for a lat-pulldown. Depending on the program (automatic training mode) they choose (for example normal mode or drop set mode), the electromechanical resistance module 7 will increase the resistance equivalent by 1 kg with every pull the user makes. This allows a gradual increase in resistance with every pull, for example, from 40 kg gradually by 1 kg up to 55 kg, without the need to switch physical weights 5.

[0166] The electromechanical resistance module 7 can operate like a pyramid, gradually increasing and decreasing the resistance within one set.

[0167] A Max-Tension Mode is designed to maximize muscle tension and engagement throughout a single set. The user selects an initial heavy physical weight 5, for example, 50 kg. The electromechanical resistance module 7 can initially be set to zero. As the user begins the set, the electromechanical resistance module 7 gradually adds resistance with each repetition (pyramid up) by an equivalent of 2 kg. This increase continues until the total weight reaches the user's one-rep max (one repetition maximum), which in this example is 90 kg. The electromechanical resistance module 7 can save the peak one-rep max amounts, so it remembers past peak one-rep max weights and builds up the pyramid until reaching a new max level.

[0168] At the peak weight (90 kg), the user experiences maximum resistance for a brief period, fully engaging the muscles. After reaching the peak, the electromechanical resistance module 7 starts decreasing the weight by 2 kg with each subsequent repetition. This reduction continues until the weight returns to zero electromechanical resistance, leaving only the physical weight 5 of 50 kg. The gradual increase and decrease in weight target different muscle fibers, enhancing overall muscle development.

[0169] Another example covered by method 1000 is as follows: in the Variable-Resistance Mode with an electromechanical resistance module 7, the resistance changes non-linearly within a single repetition. Unlike gradual or linear progression, where the resistance increases or decreases at a constant rate, this mode involves unpredictable and dynamic adjustments to the resistance at different points of the movement.

[0170] At the beginning of the repetition, the user sets the physical weights 5 at a comfortable level, for example, 50 kg. As the single movement/repetition progresses, the electromechanical resistance module 7 detects the muscle's engagement and adjusts the resistance accordingly. During the midpoint of the repetition, the resistance can increase or decrease sharply. These changes can be programmed to vary in intensity and duration, creating a challenging environment for the muscles. Towards the end of the repetition, the resistance can either taper off or spike based on the preset program. This unpredictability ensures that the muscles are constantly adapting to the changing resistance. The non-linear changes in resistance force the muscles to respond to varying loads, leading to greater muscle activation. The unpredictable nature of the resistance changes helps prevent plateaus in training. Muscles must constantly adapt to new challenges, promoting continuous improvement and growth. By varying the load throughout the repetition, the stress on joints and tendons can be minimized, reducing the risk of overuse injuries common with constant or linear resistance training.

[0171] Repetition refers to the number of times a user performs a specific exercise movement consecutively in a set, while a set refers to a specific number of repetitions of a particular exercise performed consecutively without rest.

[0172] The following claims particularly point out certain combinations and sub-combinations regarded as novel and non-obvious. These claims may refer to an element or a first element or the equivalent thereof. Such claims should be understood to include incorporation of one or more such elements, neither requiring nor excluding two or more such elements. Other combinations and sub-combinations of the disclosed features, functions, elements, and/or properties may be claimed through amendment of the present claims or through presentation of new claims in this or a related application. Such claims, whether broader, narrower, equal, or different in scope to the original claims, also are regarded as included within the subject matter of the present disclosure.