Abstract: An exercise machine includes a pair of slide members having front ends connected to a crank unit for turning along with the crank unit and rear ends linearly slidable on a support. A pair of reciprocating members are mounted on the support for reciprocating forward and backward. A pair of foot support members each have a front pivotal end and a rear free end. The front pivotal end of each foot support member is connected pivotally to one of the slide members between the front and rear ends of the slide member. Each foot support member is connected to one of the reciprocating members rearwardly of the front pivotal end.

Abstract: A bicycle pedal has a foot-supporting portion and a retainer that includes flexible first and second retaining bands, an elongated resilient connecting member, and a flexible sleeve. The first and second retaining bands extend respectively from two opposite sides of the foot-supporting portion. The connecting member has two ends fastened respectively to the first and second retaining bands so that engagement band portions of the first and second retaining bands are movable away from each other. The sleeve is disposed around the engagement band portions of the first and second retaining bands. When one foot of a rider is inserted into a space between the sleeve and the foot-supporting portion, the connecting member is stretched automatically to an extent corresponding to the size of the foot so as to clamp the foot between the sleeve and the foot-supporting portion.

Abstract: An exercise apparatus includes a support frame, a crank assembly, two swing units, and two pedal assemblies. The crank assembly is mounted on the rear of the support frame, and has a crankshaft and a pair of crank members. Each swing unit includes a lever mounted on the front of the support frame, and a longitudinal connecting unit connected to a respective crank member. Each pedal assembly includes a rocking arm with a pivot end mounted pivotally on the front of the support frame, and a pedal axle having a rear end making relative sliding movement with the connecting unit when the pedal axle is moved. The pedal assemblies are respectively connected to the swing units for swinging synchronously with the swing units.

Abstract: A bicycle pedal has a foot-supporting portion and a retainer that includes flexible first and second retaining bands, an elongated resilient connecting member, and a flexible sleeve. The first and second retaining bands extend respectively from two opposite sides of the foot-supporting portion. The connecting member has two ends fastened respectively to the first and second retaining bands so that engagement band portions of the first and second retaining bands are movable away from each other. The sleeve is disposed around the engagement band portions of the first and second retaining bands. When one foot of a rider is inserted into a space between the sleeve and the foot-supporting portion, the connecting member is stretched automatically to an extent corresponding to the size of the foot so as to clamp the foot between the sleeve and the foot-supporting portion.