Since moving to the Southwest I've greatly ramped up my cycling. I used to do ~16 miles a day, now I do double that or better, nearly every day of the week. Usually by around 15-20 miles I get nerve problems in my right hand. My left is pretty much unaffected, even if I do 50 miles or more.
Note: my right hand is my dominant hand.
I ride with a club, and whenever I see riders shaking their hands to relieve the tingling, it's almost always their right hand. Lately I've been asking people I see doing this if they're right- or left-handed. Right-hand shakers have all been right-hand dominant.
Does anyone know if my straw poll has been tested more scientifically? And, if so, has anyone proposed an explanation for why the dominant hand should incur more problems than the off hand?