A pedal of an exerciser contains: a body and a fitting sleeve. The body includes multiple slots parallelly defined on the body, and the body includes a first slide rail and a second slide rail symmetrically formed on two sides of the body. The fitting sleeve includes a connection portion received in the multiple slots, a first rotatable seat and a second rotatable seat symmetrically fixed on two sides of the fitting sleeve. The first rotatable seat has a first receiving orifice, and the second rotatable seat has a second receiving orifice, such that a coupling bolt is inserted through the first receiving orifice of the first rotatable seat, the first slide rail of the body, the second slide rail of the body, and the second receiving orifice of the second rotatable seat. Thereafter, the coupling bolt is locked by two first defining elements and two second defining elements.

A device and method for estimating a resistance of a wheel of a bicycle is disclosed. The device includes a mounting bracket, a disk, and a resistance adjustment knob. The mounting bracket is coupled to the bicycle. The disk is configured to indicate the resistance. The disk is located within the mounting bracket. The resistance adjustment knob is connected to the disk via a connector. Upon rotation of the knob, the connector rotates the disk for estimating the resistance of the wheel of the bicycle. The determined estimated resistance is visible on the disk.

A portable elliptical exercise apparatus where movement of the right pedal or left pedal defines an ellipse having an ellipse width and ellipse height, where the ellipse height can be incrementally varied according to the pedal surface location of a left foot or right foot on a corresponding left pedal or right pedal.

An exercise machine (100) used to perform physical activity includes at least one control device (1) which can be actuated by the user to impart a command to the exercise machine (100). The exercise machine (100) includes at least one lighting device (2), the at least one lighting device (2) being positioned on the exercise machine (100) so as to identify the at least one control device (1) with which the exercise machine (100) is provided when the at least one lighting device (2) is lit.

A method for unlocking a control unit of an exercise machine includes providing the exercise machine, having at least one sensor for detecting presence of a user on the exercise machine, with at least one electrical signal representative of a detection carried out at the time of the occupation of the exercise machine by a user. The method further includes switching, by the exercise machine, the control unit of the exercise machine from a first locking condition to at least a second operating condition in which the user may issue commands to the exercise machine by the control unit, based on the at least one electrical signal provided by said at least one sensor for detecting the presence of the user on the exercise machine.

The present invention relates to an indoor exercise bicycle capable of implementing an uphill mode and a downhill mode through a simple structure. An indoor exercise bicycle having uphill and downhill mode functions according to an embodiment of the present invention comprises: a brake unit that controls a pressing force applied to the circumferential surface of one side of a wheel, by means of forward movement of a brake mounting connected to a lead screw rotating through a motor; and a gear unit that is meshed with the brake unit of the lead screw while being spaced apart therefrom by a predetermined distance, and controls speed with respect to the rotational force of the wheel according to the rotation of the lead screw, wherein the brake unit may be operated in an uphill mode, and the gear unit may be operated in the downhill mode.

A direct-drive bicycle training system and methods of using the same are provided. The system includes a bicycle trainer that rests on a support surface and supports a bicycle frame in an upright manner with respect to the support surface. The bicycle trainer includes a stator, a rotor that rotates with respect to the stator, a cassette affixed to the rotor, a support frame supporting the stator, rotor, and cassette, and a resistance applying mechanism that operatively couples to a portion of a drivetrain of the bicycle frame and applies varying levels of resistance to the portion of the drivetrain. The support frame moves with respect to the support surface in response to a force applied to the drivetrain of the bicycle frame during use of the bicycle training system, generating a more natural movement of the bicycle and simulating on-road use.

An embodiment of the present invention provides a moving bike device including: a memory configured to store distance information and altitude information; a content implementation unit configured to adjust a reproduction state of content in response to a speed of a wheel depending on pedaling of a user; a controller configured to calculate a road slope from the distance information and the altitude information, and to calculate a travel distance depending on the pedaling of the user; and a road slope implementation unit configured to adjust strength of a brake in proportion to the road slope corresponding to the travel distance.

An exercise machine has a flywheel, a rotary input member, and a clutch mechanism that is positionable in a freewheel position in which rotation of the rotary input member causes rotation of the flywheel and wherein thereafter ceasing rotation of the rotary input member permits continued rotation of the flywheel. The clutch mechanism is alternately positionable in a direct drive position in which rotation of the rotary input member causes rotation of the flywheel and wherein thereafter ceasing rotation of the rotary input member prevents continued rotation of the flywheel. Advantageously, movement of the clutch mechanism from the freewheel position to the direct drive position is prevented when rotation of the rotary input member is out of synchronization with rotation of the flywheel.

A haptic simulation exercise device includes a frame, a contact point supported by the frame, and an actuator. The contact point is configured to allow user contact with the exercise device during use of the exercise device. The actuator is configured to displace the contact point relative to the frame.