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Physiological strains while pushing or hauling

M Garcin1, J Y Cravic, H Vandewalle

  • 1Laboratoire de Physiologie du Travail et du Sport, La Pitié Salp êtrière, Paris, France.

European Journal of Applied Physiology and Occupational Physiology
|January 1, 1996
PubMed
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Pushing loads with arms is more physiologically demanding than hauling with a pelvic belt, evidenced by higher heart rate and oxygen consumption. This static work component increases the overall physiological cost during pushing exercises.

Area of Science:

  • Exercise Physiology
  • Biomechanics

Background:

  • Understanding the physiological demands of different load-moving techniques is crucial for optimizing training and preventing injury.
  • Pushing and hauling are common methods for moving loads, but their comparative physiological costs are not fully elucidated.

Purpose of the Study:

  • To compare the physiological strain of pushing a load with a bar versus hauling a load with a pelvic belt.
  • To investigate the impact of static work in pushing on physiological responses.

Main Methods:

  • Two groups (sedentary men and endurance athletes) performed pushing and hauling tasks on a treadmill at various resistances and speeds.
  • Physiological strain was assessed via heart rate (HR) and oxygen consumption (VO2).
  • Perceived exertion (RPE) was measured in the trained group.

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Main Results:

  • Pushing resulted in significantly higher HR, VO2, and RPE compared to hauling in both groups (P < 0.01).
  • Endurance athletes showed a greater difference in physiological cost between pushing and hauling.
  • A shifted VO2-HR relationship in athletes during pushing indicated added static work.

Conclusions:

  • Pushing loads with the upper limbs is more strenuous than hauling with a pelvic belt due to the inclusion of static muscular work.
  • The findings suggest that training programs should consider the distinct physiological demands of pushing versus hauling activities.