A motorized lifting rack that selectively lifts and lowers a barbell through linear actuators is provided. The powered lifting rack can engage a barbell at floor level. The linear actuators can also selectively raise and lower safety bars design to “spot” the barbell for a single user. The powered lifting rack is embodied in a system that includes a platform that the safety bars can nest in. The platform provides a plurality of actuating benches for a user of the barbell to utilize.

A motorized lifting rack that selectively lifts and lowers a barbell through linear actuators is provided. The powered lifting rack can engage a barbell at floor level. The linear actuators can also selectively raise and lower safety bars design to “spot” the barbell for a single user. The powered lifting rack is embodied in a system that includes a platform that the safety bars can nest in. The platform provides a plurality of actuating benches for a user of the barbell to utilize.

A fitness apparatus based on the principle of a flexible mechanical arm, includes a mechanical arm and a support part, the mechanical arm is connected with the support part, the end of the mechanical arm being provided with a mechanical interaction structure; also including a force feedback joint, a motion control module, a force field control module, a human-computer interaction module, and a human body motion posture analysis module. The present disclosure does not use any counterweights for strength control, allowing fitness training to be performed in a limited environment that could only be done in a professional environment in the past. The present disclosure can simulate a variety of huge fitness equipment, miniaturize and integrate large exercise equipment in many gyms, making strength training possible in a limited space, and also allowing gyms to save a large amount of equipment space and greatly improve their operational efficiency.

An electronic device and a wearable device providing exercise posture evaluation information, and operation methods thereof are disclosed. The electronic device includes: an input module configured to receive a user input that selects an exercise program to be performed by a user wearing the wearable device; a communication module configured to receive, from the wearable device, sensor data including movement information of the user during an exercise performed by the user according to the selected exercise program; a processor configured to determine an exercise posture measurement value of the user based on the sensor data, and generate a first visual guide object including a first indicator indicating an exercise posture reference for the selected exercise program and at least one second indicator indicating the exercise posture measurement value; and a display module configured to output a graphical user interface (GUI) on which the first visual guide object is displayed.

An exercise assist method includes receiving a user input signal comprising exercise setting information from an external device; measuring, based on the user input signal, a joint angle of a hip joint of a user wearing an exercise assist device configured to assist a user in performing a leg movement; and controlling torque of the exercise assist device to be applied to a leg of the user based on the measured joint angle and the exercise setting information.

An immersive upper limb rehabilitation training system includes a dual-arm rehabilitation robot, a base, a position tracker, a VR headset, a force-feedback glove, a host computer control center and passive compliant end-effectors. The dual-arm rehabilitation robot is mounted on the base, and drives an arm of a patient to move through two passive compliant end effectors. The visual sensor is used for recording a motion of an upper limb of the patient and feedback-controlling a motion of the dual-arm rehabilitation robot. The position tracker is used for real-time collecting position and posture information of the arm and transmitting it to the upper computer control center. The two passive compliant end-effectors are respectively worn on a forearm and an upper arm of the patient. The upper computer control center is used to provide a quantitative index and control a display of a training screen.

A fitness machine providing shock absorption for a user operating the fitness machine. The fitness machine includes a base, at least one member engageable by the user and moveable relative to the base during operation of the fitness machine, and a resilient body that resists movement of the at least one member towards the base so as to provide shock absorption for the user, wherein the resistance provided by the resilient body is adjustable. The fitness machine further includes a control system configured to receive from the user a shock setting corresponding to how much shock absorption is desired, and to receive other than from the user a secondary input, wherein the control system is further configured to adjust the resistance provided by the resilient body based on the shock setting and the secondary input.

The present disclosure provides for attention and exertion based safety mechanisms in exercise devices by: identifying a user exercising on an exercise device while the exercise device is in a first state; monitoring a physical state and an attentiveness level of the user while the exercise device is in the first state, wherein monitoring the attentiveness level includes monitoring targets of a gaze of the user within a time window and a consistency of the gaze within the time window; determining, based on the physical state and the attentiveness level of the user, that the user is experiencing a risk of injury above a predefined threshold; and adjusting the exercise device from the first state to a second state to alleviate the risk of injury.

Systems, methods, and storage media for navigating in a virtual environment considering imprecision from a user's inner ear vestibular systems. Exemplary implementations may define a point of view for a user in the virtual environment; when the user walks in a real environment, define a vector r1 therein and compute a first vector vr1 in the virtual environment from r1 with vr1 having an x component, ay component and a rotational component ; in real-time priority processing and while user walks, compute a second vector vr2 in the virtual environment having an x-translation component x, a y-translation y component and a rotational component with at least one of x, y and being effective for inducing a translation and/or rotation of the point of view in the virtual environment while the user walks; and move the point of view along vr1 taking into account vr2.

A treadmill safety control system, method, and apparatus are described for operating an exercise treadmill by enabling a treadmill motor to start moving the treadmill belt after an initial height of the user on the treadmill belt is measured, and then continually measuring a current height of the user on the treadmill belt for evaluation against the initial height so that a first treadmill motor control signal is generated to stop the treadmill motor from moving the treadmill belt when the current height is lower than the initial height by a minimum height threshold.