Journal of Sports Science and Medicine
Journal of Sports Science and Medicine
ISSN: 1303 - 2968   
Ios-APP Journal of Sports Science and Medicine
Androit-APP Journal of Sports Science and Medicine
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©Journal of Sports Science and Medicine (2014) 13, 511 - 515

Research article
Effect of Load on Peak Power of the Bar, Body and System during the Deadlift
Justin A. Blatnik, Courtney L. Goodman, Christopher R. Capps, Olumide O. Awelewa, Travis N. Triplett, Travis M. Erickson, Jeffery M. McBride 
Author Information
Appalachian State University, Department of Health, Leisure & Exercise Science, Neuromuscular & Biomechanics Laboratory, Boone, NC, USA

Jeffery M. McBride
✉ Director of Neuromuscular & Biomechanics Laboratory, Appalachian State University, Convocation Center Room 045, Boone, NC 28607, USA
Email: Mcbridejm@appstate.edu
Publish Date
Received: 12-02-2014
Accepted: 30-03-2014
Published (online): 01-09-2014
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ABSTRACT

The purpose of this investigation was to examine how load would affect peak power (PP) of the bar, body and system (bar + body) during the deadlift. Eight healthy males (age = 22.00 ± 2.38 years; height = 1.80 ± 0.05 m; body mass = 88.97 ± 14.88 kg; deadlift one repetition maximum [1RM] = 203.44 ± 21.59 kg, 1RM/BM = 2.32 ± 0.31) with a minimum of 2 years’ resistance training experience and a deadlift 1RM over 1.5 times their bodyweight participated in the investigation. During the first session, anthropometric data were recorded and a 1RM deadlift was obtained from the participants. During the second session, participants performed two repetitions at intensities of 30, 40, 50, 60, 70, 80 and 90% of their 1RM in a randomized order. Three-dimensional videography with a force plate was used for data collection and analysis. Peak force (PF), peak velocity (PV), an d PP were calculated for the bar, body, and system (bar + body) during the deadlift. PP occurred at 50%, 30%, and 70% of 1RM for the bar, body, and system, respectively. The optimal loading for the deadlift exercise may vary depending on the desired stimulus and whether the bar, body, or system variables are of most interest.

Key words: Deadlift, peak power, force plate, resistance training


           Key Points
  • Peak power of the bar, body and system vary depending upon load.
  • Loading should be chosen according to desired training effect, with considerations for sport specificity.
  • Additional exercises should be investigated concerning the effect of various loads on power.
 
 
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