Influence of Ergometer Design on Physiological Responses during Rowing.

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.