Abstract: A method and apparatus for maintaining the heart rate of a user of a fitness apparatus at a scheduled target rate by varying the resistance of a first resistance mechanism with respect to a second resistance mechanism. To increase the heart rate, the resistance of the first resistance mechanism is increased to a maximum level before an adjustment is made to the second resistance mechanism. To decrease the heart rate, the resistance of the second resistance mechanism is decreased to a minimum level before an adjustment is made to the first resistance mechanism. The invention may be incorporated into a treadmill having resistance mechanisms including a mechanism to vary the speed of the treadmill belt and a mechanism to vary the grade of the treadmill.

Abstract: A motorless treadmill for exercising the upper body and lower body of a user. Displacement of an upper-body exercise mechanism such as a pair of reciprocating arm members rotates a drive roller. The drive roller is coupled to an endless belt, and a transmission system links the drive roller to the upper body exercise mechanism such that arm movements are translated into belt rotation. In one embodiment, pulleys are used as the transmission system to transmit the energy from the movement of the arm members to the belt. A flywheel may be added to store energy to smooth the belt rotation.

Abstract: A treadmill comprises a base, a pair of spaced rollers, an endless belt, a control panel, and a forward post. The rollers are journalled in the base. One of the rollers constitutes a rear roller and the other roller constitutes a forward roller spaced forward of the rear roller. The belt is entrained around the rollers. The belt includes an upper reach extending between the rollers and adapted to enable a user to walk or run thereon. The forward post is configured for at least in part supporting the control panel. The post has a lower end margin and an upper end margin The lower end margin is operatively connected to the base and is spaced forward of the forward roller. The upper end margin of the post is configured for supporting the control panel. The post has an arcuately shaped bend extending from its lower end margin to its upper end margin.

Abstract: A motorless treadmill for exercising the upper body and lower body of a user. Displacement of an upper-body exercise mechanism such as a pair of reciprocating arm members rotates a drive roller. The drive roller is coupled to an endless belt, and a transmission system links the drive roller to the upper body exercise mechanism such that arm movements are translated into belt rotation. In one embodiment, pulleys are used as the transmission system to transmit the energy from the movement of the arm members to the belt. A flywheel may be added to store energy to smooth the belt rotation.

Abstract: A method and apparatus for maintaining the heart rate of a user of a fitness apparatus at a scheduled target rate by varying the resistance of a first resistance mechanism with respect to a second resistance mechanism. To increase the heart rate, the resistance of the first resistance mechanism is increased to a maximum level before an adjustment is made to the second resistance mechanism. To decrease the heart rate, the resistance of the second resistance mechanism is decreased to a minimum level before an adjustment is made to the first resistance mechanism. The invention may be incorporated into a treadmill having resistance mechanisms including a mechanism to vary the speed of the treadmill belt and a mechanism to vary the grade of the treadmill.

Abstract: A method and apparatus for maintaining the heart rate of a user of a fitness apparatus at a scheduled target rate by varying the resistance of a first resistance mechanism with respect to a second resistance mechanism. To increase the heart rate, the resistance of the first resistance mechanism is increased to a maximum level before an adjustment is made to the second resistance mechanism. To decrease the heart rate, the resistance of the second resistance mechanism is decreased to a minimum level before an adjustment is made to the first resistance mechanism. The invention may be incorporated into a treadmill having resistance mechanisms including a mechanism to vary the speed of the treadmill belt and a mechanism to vary the grade of the treadmill.

Abstract: An exercise treadmill is disclosed having a flexible, endless belt entrained around a pair of spaced rollers and having a slider bed disposed under the upper reach of the belt. The slider bed is of a heat-conducting metal plate, and is supported by an open frame such that air may freely flow under the slider bed to carry away heat generated by the upper reach of the belt (with the weight of the runner supported thereon) functionally sliding on the slider bed. The frame, slider bed supports, and slider bed are constructed in such manner as to permit limited vertical flexing movement of these parts when a user runs or walks on the upper reach of the belt supported by the slider bed so as to absorb shock and cushion the impact of the user's feet.