Three-dimensional deformation of the Achilles tendon during load in people with unilateral mid-portion Achilles tendinopathy

The author’s clinical experiences suggest that current road bicycle designs and configurations are sub-optimal for those of average female height and smaller, and that further research in the area is necessary to help improve injury and performance outcomes in this group. The author proposes that the use of proportionally sized cranks facilitates a more optimal fitting process with positive effects on both injury and performance. Bike handling and safety may, however, be negatively affected by the use of lengths deviating substantially from that which a given frame was designed around. Such concerns may be resolved with frames based on proportional crank lengths and wheel sizes.