The acute effects of heavy sled towing on subsequent sprint acceleration performance

Jarvis, Paul and Turner, Anthony N. and Chavda, Shyam and Bishop, Chris (2017) The acute effects of heavy sled towing on subsequent sprint acceleration performance. Journal of Trainology, 6 (1). pp. 18-25. ISSN 2186-5264

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Abstract

Objectives: The purpose of this study was to assess the practical use of heavy sled towing and its acute implications on subsequent sprint acceleration performance.

Design and Methods: Eight healthy male varsity team sport athletes (age: 21.8±1.8years, height: 185.5±5.0cm, weight: 88.8±15.7kg, 15m sprint time: 2.66±0.13s) performed sprints under three separate weighted sled towing conditions in a randomized order. Each condition consisted of one baseline unweighted sprint (4-min pre), the sled towing sprint protocol: (1) 1x50% body mass, (2) 2x50% body mass, (3) 3x50% body mass (multiple sprints interspersed with 90s recovery), and 3 post-testing unweighted sprints thereafter (4, 8, 12-min post). All sprints were conducted over a 15m distance.

Results: Significantly faster sprint times for the 3x sled towing protocol were identified following 8-min of rest (p=0.025, d=0.46, 2.64±0.15s to 2.57±0.17s). When individual best sprint times were analyzed against baseline data, significantly faster sprint times were identified following both 1x (p=0.007, d=0.69, 2.69±0.07s to 2.64±0.07s) and 3x (p=0.001, d=0.62, 2.64±0.15s to 2.55±0.14s) sled towing protocols. Within the 3x condition, all athletes achieved fastest sprint times following 8–12 min of rest.

Conclusions: The findings from the present study indicate that a repeated bout of sled towing (3x50% body mass) leads to the enhancement in subsequent sprint acceleration performance, following adequate, and individualized recovery periods.

Item Type: Article
Research Areas: A. > School of Science and Technology > London Sport Institute
Item ID: 21824
Notes on copyright: Permission to reproduce granted by Journal of Trainology.
Useful Links:
Depositing User: Jennifer Basford
Date Deposited: 12 May 2017 13:31
Last Modified: 05 Sep 2018 16:48
URI: http://eprints.mdx.ac.uk/id/eprint/21824

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