[i]Originally posted by Phoenix[/i]
Could the bicep being a flexor of the arm counteract excessive extension? I don’t know….
Not that it’s too relevant here but a recent (and as yet unpublished) study here at LSU indicates that the bicep only serves as an arm flexor when the arm is in anatomical position (straight elbow, upper and lower arm at side). While present, the torque produced in this position was minimal. One of the limitations however was that the flexor torque could not be examined when the arm was in an extended position (as it would be in the rear most part of the arm swing). This position might put the bicep on a greater stretch and might even result in a flexor torque at the shoulder if the elbow joint was bent (as in running). I would suspect that if it were even present thought that the torque would still be very minimal.
ELITETRACK Founder