Distractors
The most speed but very inefficient gait
The slowest speed and the most inefficient gait
Hamstring tightness was not related to either speed or efficiency
Key
The most speed and the most economical gait
Question
In a study of hamstring function and running done by Trehearn and Buresh at Nebraska Wesleyan University in 2009, those runners with the tightest hamstrings had: