A portable exercise apparatus having a base, at least two handle assemblies, and a cable wrapped between at least one flywheel within the base, wherein the cable is attached to a handle assembly and is affixed to a spring mechanism configured to provide resistance against the pulling of the handle assemblies. The load provided by the spring mechanism can be adjusted to accommodate more or less resistance for the user. The exercise apparatus is compact and can be used in a standing or sitting position.

A rowing exercise device in which the return force for the rowing handle is provided by the force of gravity rather than an elastic cable. The rowing exercise device includes a stationary base and a moveable frame, which rotates or slides upwardly relative to the stationary base when a pulling force is applied to the handle, and then rotates or slides back down to the initial position under the force of gravity when the pulling force is removed.

A physical training apparatus includes a housing, a flywheel mechanism accommodated in the housing, the flywheel mechanism including a spindle, at least one flywheel mounted on the spindle and bearings to support the spindle in the housing, and a windable pull element, such as a pull cord or band, which is arranged to be wound up the spindle and unwound from the spindle. The spindle includes a spindle end portion. The flywheel is exchangeably mounted on the spindle end portion against a stop located on the spindle. A fastening knob is releasably coupled to the spindle end portion and adapted to engage the flywheel and force it against the stop located on the spindle. The housing includes at least on one lateral side a covering lid.

An elliptical exerciser includes a frame, first and second magnetic control wheel units, first and second swing levers, first and second transmission rods, first and second guiding mechanisms, first and second pedal rods, and a magnetic mechanism. When the first and second swing levers and the first and second transmission rods are swung forward and rearward synchronously and the first and second pedal rods are pedaled up and down to slide forward and rearward, the first and second pedal rods pivotally connected with bottom ends of the first and second swing levers are to do a tread motion of an elliptical trajectory.

A strength machine includes a housing having at least two openable or detachable housing shells, a support structure coupled to the housing, a rotatable flywheel mounted on a shaft supported by the support structure, the flywheel being situated between the two housing shells, the flywheel changing its direction of rotation while in operation, a strap- or belt-shaped flexible pulling element attached to the shaft, a hand grip which forms part of or is attached to the flexible pulling element, and an attachment module coupled to the housing, for securing the strength-training machine to an external support.

A climbing exercise machine with adjustable inclination includes a frame, an exercising unit including pair of arm members respectively pivotally mounted to the frame, a pedal unit including a pair of pedal shafts respectively pivotally connected to the arm members, a damper including a rotatable wheel with an axle and adapted for providing damping to the pedal unit, a guide unit including a pair of cranks respectively fixedly connected to opposite ends of the axle of the rotatable wheel and respectively pivotally connected to the pedal shafts, a pair of rockers respectively pivotally connected to the cranks and a pair of links respectively pivotally connected to the rockers, and an adjusting unit mounted to the frame and adapted for driving the links to adjust the distance between a rear pivoting portion of each rocker and the frame and to achieve adjustment of the inclination of the climbing exercise machine.

A direction-reversing device includes a frame, two side wheels, a reverse wheel module, a flexible member and a tension adjusting mechanism. The side wheels are pivotally disposed on two side of the frame, respectively. The reverse wheel module disposed at the frame includes two reverse wheels. The reverse wheels are coaxially disposed to the frame and perpendicular to the side wheels. The flexible member is wound around the side wheels and the reverse wheels. The tension adjusting mechanism disposed at the frame includes at least one fastener. The fastener connecting the reverse wheel module to the frame is for changing a relative position between the frame and the reverse wheel module. Therefore, a tension of the flexible member is changed accordingly.

A pedal assembly for electromechanical exercise or rehabilitation of a user is disclosed and can include pedals to engage appendages of a user. A spindle supports each pedal and has a spindle axis. A pedal arm assembly is located between the spindle and a rotational axle of the equipment. The pedal arm assembly is radially offset from the spindle axis to define a range of radial adjustability for the pedal relative to the rotational axle. The pedal arm assembly can include an electrically-actuated coupling assembly to adjust the radial position of the pedal in response to a control signal, and regulate motion of the user engaged with the pedals.

A pedal assembly for electromechanical exercise or rehabilitation of a user is disclosed and can include pedals to engage appendages of a user. A spindle supports each pedal and has a spindle axis. A pedal arm assembly is located between the spindle and an axle. The pedal arm assembly is radially offset from the spindle axis to define a range of adjustability for the pedal relative to the axle. The pedal arm assembly can include an electrically-actuated coupling assembly to adjust the position of the pedal in response to a control signal, and regulate motion of the user engaged with the pedals.

An exercise device comprises a flywheel, a seat, a driving assembly, and a calculation module. The driving assembly drives the flywheel to rotate and comprises a driving wheel, a coupling member, and two cranks respectively connecting with a pedal. The coupling member connects the wheel and the flywheel. The user drives the wheel via the pedals. The calculation module performs a method to estimate a proper seat position and/or a crank length for the user.