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Related Experiment Videos

Swimming physiology.

I Holmér1

  • 1National Institute of Occupational Health, Solna, Sweden.

The Annals of Physiological Anthropology = Seiri Jinruigaku Kenkyukai Kaishi
|May 1, 1992
PubMed
Summary
This summary is machine-generated.

Regular swim training significantly reduces the high energy cost of swimming propulsion. Stroke efficiency and technique are key to improving swimming performance and exploring human limits.

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Area of Science:

  • Sports Physiology
  • Biomechanics
  • Exercise Science

Background:

  • Swimming involves unique environmental factors like gravity, resistance, and thermal stress.
  • Energy cost of propulsion is high but reduced by training.
  • Different swimming strokes have varying energy costs.

Purpose of the Study:

  • To analyze the physiological and biomechanical factors influencing swimming performance.
  • To understand the impact of training on energy efficiency in swimming.
  • To identify determinants of power production capacity in swimmers.

Main Methods:

  • Analysis of energy cost across different swimming strokes (front crawl, backstroke, butterfly, breaststroke).
  • Comparison of physiological responses (cardiac output, heart rate) during swimming versus running.

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  • Evaluation of local factors in active muscles, including circulation and metabolic capacity.

    • Main Results:

    • Energy cost is lowest in front crawl, followed by backstroke, butterfly, and breaststroke.
    • Maximal heart rate is lower in swimming than running, suggesting smaller active muscle mass and power output.
    • Local muscle factors and improved technique are crucial for performance enhancement.

    Conclusions:

    • Swim training reduces energy cost and improves efficiency.
    • Physiological limitations like cardiac output are less critical than local muscle factors and technique.
    • Understanding biomechanics and physiology is essential for optimizing swimming performance.