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Resistance Training Volume Load with and without Exercise Displacement.

W Guy Hornsby1, Jeremy A Gentles2, Paul Comfort3

  • 1Athletic Coaching Education, College of Physical Activity and Sport Sciences, West Virginia University, Morgantown, WV 26505, USA. william.hornsby@mail.wvu.edu.

Sports (Basel, Switzerland)
|November 8, 2018
PubMed
Summary

Volume load (VL) monitoring is key for resistance training management. Including barbell displacement in VL calculations offers more precise workload totals, especially for coaches with ample time.

Keywords:
athlete monitoringexercise displacementresistance trainingvolume load

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Area of Science:

  • Sports Science
  • Exercise Physiology
  • Strength and Conditioning

Background:

  • Monitoring resistance training volume load (VL) is crucial for managing training and optimizing the recovery-adaptation process.
  • Accurate workload assessment is fundamental for effective program design and athlete development.

Purpose of the Study:

  • To compare two methods of calculating volume load: one including barbell displacement (VLwD) and one excluding it (VL).
  • To determine the impact of including barbell displacement on the accuracy of resistance training workload measurements.

Main Methods:

  • Eight trained weightlifters, including national-level athletes, participated in a twenty-week training study.
  • Volume load was measured with (VLwD) and without (VL) barbell displacement, recording load, reps, and displacement for each set.
  • Comparisons between VL and VLwD were conducted across various training periods (blocks, weeks, days).

Main Results:

  • Strong, statistically significant correlations (r ≥ 0.78, p < 0.001) were found between VL and VLwD across all analyzed training periods.
  • Statistically significant differences (p ≤ 0.018) between VL and VLwD were observed in four out of seven training periods.

Conclusions:

  • The high correlation suggests displacement may be omitted by coaches with time constraints and many athletes.
  • However, differences in percent change highlight the benefit of including displacement for more precise workload totals when time permits.