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CUSTOM ADAPTATION PURPOSE: To enable an individual with multiple sclerosis to use an exercise bike. The individual purchased a commercially-available exercise bike that enabled him to slide from his wheelchair directly on to the unit's seat. With frequent use, the cycle wore out and required adaptation, strengthening, and repair. Adaptations included upgrading the bearings, increasing resistance to provide greater exercise, and adapting the pedals to keep the user's feet from slipping off. The frame was welded as needed and the four simple fixed bearings were removed and replaced with a pivot arrangement using four pillow blocks with ball bearings. To increase the resistance, the air was bled from the under-seat cylinder and a coiled spring, which can be removed if not needed, was fitted between the main frame and the pedals. Metal guards were fitted to the pedals to prevent the rider's feet from slipping forward. A piece of steel was fastened to the bottoms of the pedals to counterbalance the weight of the guards and prevent the pedals from flipping over. TITLE: Riding On. JOURNAL: TAD Journal. REF: Volume 26, Number 4, January 2007: p. 8-9. PAGES: 3 (including cover).
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