It was also the only measure of strength able to explain any further variance in their multiple regression model, on top of linear sprint running ability. (strengthandconditioningresearch.com)
I'm assuming this is because he is lacking the ability to out muscle a receiver and doesn't possess the route running ability at this point. (sbnation.com)
The bundles did compromise male running abilities in timed laboratory trials, slowing the spiders by about 42 % compared with similarly sized males without gifts. (sciencemag.org)