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Influence of Ergometer Design on Physiological Responses during Rowing.

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This study compared stationary and dynamic Concept2 rowing ergometers. Dynamic rowing showed higher physiological exertion but lower rowing efficiency and blood lactate accumulation.

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Area of Science:

  • Sports Science
  • Exercise Physiology
  • Biomechanics

Background:

  • Rowing ergometers are widely used for training and assessment.
  • Stationary and dynamic ergometers may elicit different physiological responses and efficiencies.

Purpose of the Study:

  • To compare physiological responses and rowing efficiency between stationary and dynamic Concept2 rowing ergometers.
  • To evaluate the impact of ergometer type on key performance and physiological metrics.

Main Methods:

  • 11 participants completed 4-minute rowing bouts at 60% and 70% of peak power output on both ergometer types in a randomized order.
  • Measurements included power output, stroke rate, heart rate, oxygen uptake, carbon dioxide production, lactate accumulation, and perceived exertion.
  • Gross and net efficiencies were calculated.

Main Results:

  • Higher heart rate, oxygen uptake, carbon dioxide production, and stroke rate were observed on the dynamic ergometer.
  • Lower blood lactate accumulation, gross efficiency, and net efficiency were found with the dynamic ergometer.
  • Physiological responses generally increased with exercise intensity on both ergometers.

Conclusions:

  • The Concept2 dynamic ergometer elicits greater physiological strain but results in lower rowing efficiency and blood lactate accumulation compared to the stationary version.
  • While the dynamic ergometer may offer benefits like reduced injury risk, its unique physiological demands necessitate specific training management and evaluation.
  • Further research into adapted training strategies for dynamic ergometers is warranted.