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Related Experiment Videos

Physiological correlates with perceived exertion during deep water running

S P Brown1, L F Chitwood, K R Beason

  • 1Department of Exercise Science and Leisure Management, University of Mississippi, University 38677, USA.

Perceptual and Motor Skills
|August 1, 1996
PubMed
Summary

Deep water running intensity is best predicted by %VO2 max, a measure of maximal oxygen uptake. Men and women utilize distinct sensory cues to gauge their perceived exertion during this exercise modality.

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Area of Science:

  • Exercise Physiology
  • Sports Science
  • Biomechanics

Background:

  • Deep water running is a low-impact exercise modality.
  • Understanding the relationship between subjective exertion and physiological responses is crucial for training prescription.
  • Previous research has not fully elucidated the predictors of perceived exertion in deep water running.

Purpose of the Study:

  • To investigate the relationship between perceived exertion and key physiological variables during deep water running.
  • To identify the primary physiological predictor of perceived exertion in this population.
  • To explore potential sex differences in sensory cue utilization for perceived exertion.

Main Methods:

  • Participants performed deep water running in 3-minute stages to volitional exhaustion (VO2 peak).

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  • Leg speed was standardized using a metronome.
  • Physiological variables including oxygen uptake (VO2), heart rate, carbon dioxide production, pulmonary ventilation, respiratory exchange ratio, and respiratory rate were continuously monitored.
  • Perceived exertion was assessed using Borg's 6-20 scale.

    • Main Results:

    • Percentage of VO2 max (%VO2 max) emerged as the most significant predictor of perceived exertion.
    • Multiple regression analysis identified %VO2 max as the strongest explanatory variable.
    • Significant differences were observed in the sensory cues reported by men and women to perceive exertion.

    Conclusions:

    • %VO2 max is a key physiological determinant of perceived exertion during deep water running.
    • Training intensity in deep water running can be effectively monitored using %VO2 max.
    • Sex-specific strategies may be employed to optimize perceived exertion monitoring in deep water running.