May 2017

Visual feedback on ground contact time helps improve performance in runners

In the moment: Sports medicine

By Jordana Bieze Foster

Visual-augmented feedback-based training focused on reducing ground contact time is associated with improved performance in trained distance runners, according to a Swiss study.

Researchers from the Swiss Federal Institute of Sport Magglingen analyzed 30 trained male distance runners, each assigned to one of three four-week training conditions. An intervention group received visual augmented feedback as well as instructions, both focused on reducing ground contact time, during eight high-intensity training sessions. One control group trained with the intervention group but received no augmented feedback. A second control group did their own high- intensity training routine.

After the training, the runners in the intervention group demonstrated significant improvement compared with baseline for time on the ground per minute as well as mean 10 x 400-m performance time. Neither outcome changed significantly compared with baseline for the runners in either of the control groups.

The findings were epublished in early May by the International Journal of Sports Physiology and Performance.

Source:

Gilgen-Ammann R, Wyss T, Troesch S, et al. Positive effects of augmented feedback to reduce time on ground in well-trained runners. Int J Sports Phys Perf 2017 May 1. [Epub ahead of print]

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