Vol 15, Issue 6

Effect of Real-Time Feedback on Power Output Using a Novel Smart-Resisted Sled Push

August 15, 2022 - By 

Authors

Phillip Goldman, University of Colorado, Boulder
Bilal Pandit
David Gomez
Stevin Lu
Cade Mills
Nick Kull
Richard Ku
Adrian Aramie
Alex Kim
Anka Alexdandru
Jonathan Hu
Eric Neufeld
Brett Dolezal, Airway and Exercise Physiology Laboratory, David Geffen School of Medicine, University of California Los Angeles
International Journal of Exercise Science 15(6): 1578-1586, 2022. 
DOI: 10.70252/HMXE1078

Abstract

Prior studies have demonstrated the beneficial effects of real-time data feedback (RTF) on athletic performance and motivation. Despite this evidence, the lack of practical means to implement RTF has hindered its widespread adoption. Recently, a smart-resisted sled push was developed to improve athletic power by utilizing electromagnetic motors as a resistance mechanism, coupled with an RTF display. Thirty healthy college-aged male football players were recruited in this randomized, crossover designed study to examine the efficacy of the RTF to improve power output. Participants were randomized into either group 1 (receiving RTF first then no RTF) or group 2 (receiving no RTF first then RTF) during six, 10-meter sled pushes with 3 min rest intervals. The first three pushes were set to an easier level (L1) and the last three were set to a resistance level twice that of the first three runs (L2). A one-month washout period was enforced. For trials 1-3 (L1) (p = 0.026, t = -2.34, ES = -0.428) and 4-6 (L2) (p = 0.035, t = -2.22, ES = -0.405), peak power output (the average peak power output over the course of trials 1-3 and 4-6) was greater in both groups when receiving RTF compared to no-RTF. These findings demonstrate the effectiveness of RTF in augmenting power output during performance training.

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