Do you suffer from numbness and tingling in the arm and hand?
Do you have pain and tenderness in your wrist and small finger?
Do you notice diminished grip and pinch strength?
Bicyclists can frequently develop this neuropathy that affects the ulnar nerve in the forearm and hand. During cycling the nerve tends to become inflamed at the elbow or wrist when the arm absorbs vibration and shock transmitted via the handlebars. Additionally, it can flare up when the hand and arm are maintained in a fixed position for a long time.
CAUSES
Evidence suggests that improper adjustment of the bicycle to the size and anatomical characteristics of the rider can cause the neuropathy. It is more likely to occur if the handlebars are too low relative to the height of the saddle or if the front of the saddle is pointed downward, thrusting the body weight forward on the hands. If the frame of the bicycle is too large for the rider, necessitating a reach to the handlebars, the risk of handlebar palsy increases significantly.
PREVENTION
- Frequently change hand positions from the dropped position to the brake hoods to the “top position”.
- Wear padded gloves or use padding to increase the handlebar width. Gloves decrease rider stiffness and fatigue while absorbing heat, impact and vibration.
- Correct bicycle fit. Bicycles must fit the rider’s dimensions. Have your bicycle fit with a reputable bicycle dealer.
The early stage symptoms may be limited to tingling while riding with drop handlebars. This disappears if the hands are moved to another position. In severe cases the nerve may become compressed due to swelling of surrounding muscles. The ability of the nerve to transmit messages to the muscles in the forearm/hand may be significantly reduced. If you have persistent symptoms or are unable to spread your fingers apart, see your doctor.
Mary Crompton, OTR/L, CHT
Certified Hand Therapist