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A brief description of the biomechanics and physiology of a strongman event: The tire flip
Journal of Strength and Conditioning Research (2010)
  • Justin W.L. Keogh, Auckland University of Technology
  • Amenda L. Payne, Auckland University of Technology
  • Brad B. Anderson, Auckland University of Technology
  • Paul J. Atkins, Auckland University of Technology
Abstract

The purpose of this study was to (a) characterize the temporal aspects of a popular strongman event, the tire flip; (b) gain some insight into the temporal factors that could distinguish the slowest and fastest flips; and (c) obtain preliminary data on the physiological stress of this exercise. Five resistance-trained subjects with experience in performing the tire flip gave informed consent to participate in this study. Each subject performed 2 sets of 6 tire flips with a 232-kg tire with 3 minutes of rest between sets. Temporal variables were obtained from video cameras positioned 10 m from the tire, perpendicular to the intended direction of the tire flip. Using the “stopwatch” function in Silicon Coach, the duration of each tire flip and that of the first pull, second pull, transition, and push phases were recorded. Physiological stress was estimated via heart rate and finger-prick blood lactate response. Independent T-tests revealed that the 2 faster subjects (0.38 ± 0.17 s) had significantly (p < 0.001) shorter second pull durations than the 3 slower subjects (1.49 ± 0.92 s). Paired T-tests revealed that the duration of the second pull for each subject's fastest 3 trials (0.55 ± 0.35 s) were significantly (p = 0.007) less than their 3 slowest trials (1.69 ± 1.35 s). Relatively high heart rate (179 ± 8 bpm) and blood lactate (10.4 ± 1.3 mmol/L−1) values were found at the conclusion of the second set. Overall, the results of this study suggest that the duration of the second pull is a key determinant of tire flip performance and that this exercise provides relatively high degrees of physiological stress.

Keywords
  • biomechanics,
  • physiology,
  • strongman,
  • weight training
Disciplines
Publication Date
May 1, 2010
Publisher Statement
Accepted Version.

Keogh, J. W. L., Payne, A. L., Anderson, B. B., & Atkins, P. J. (2010). A brief description of the biomechanics and physiology of a strongman event: The tire flip. Journal of Strength and Conditioning Research, 24(5), 1223-1228.

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© Copyright National Strength and Conditioning Association, 2010
Citation Information
Justin W.L. Keogh, Amenda L. Payne, Brad B. Anderson and Paul J. Atkins. "A brief description of the biomechanics and physiology of a strongman event: The tire flip" Journal of Strength and Conditioning Research Vol. 24 Iss. 5 (2010)
Available at: http://works.bepress.com/justin_keogh/4/