Functional Diversity The Biodex Upper Body Cycle is a versatile ergometer that meets the demands of any orthopedic rehabilitation, cardiac, sports medicine, wellness, or general conditioning program. It will exercise individuals with limited lower-body function, help rehabilitate a wide variety of shoulder, back, neck, wrist, and elbow patients, and give healthy athletes a grueling workout Unique Self-Powering System Use the Upper Body Cycle anywhere. There is no need for AC power at work rates at or above 30 watts and 50 rpms. The battery-supported system maintains all settings and LED displays before and after cycling. The internal battery is automatically recharged when work rates reach or exceed 30 watts and 50 rpms. An AC adapter is provided for extended use at work rates below 30 watts and 50 rpms. User-Friendly The "Quick-Start" feature gets your first-time cyclists right into their exercises. Isokinetic (speed control) provides accommodating resistance throughout the cyclist's entire range of motion for the duration of the exercise period. Resistance continuously matches effort, accommodating to variations in the patient's force output due to weakness or pain at specific points in the individual's range of motion, and to fatigue over the course of the cycling period. With a selection of 15 speeds (50 to 120 deg/sec), this resistance mode maximizes strength gains while minimizing the potential for injury.