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The Effect of Inspiratory Muscle Warm-Up on VO2 Kinetics during Submaximal Rowing.

Mati Arend1,2, Jana Kivastik3, Jaak Talts3

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Sports (Basel, Switzerland)
|April 3, 2021
PubMed
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Adding an inspiratory muscle warm-up to standard rowing exercise did not significantly alter oxygen consumption (VO2) kinetics during submaximal exercise in competitive male rowers.

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VO2 fast and slow componentperformancepriming exerciserespiratory muscles

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Area of Science:

  • Exercise Physiology
  • Sports Science
  • Respiratory Muscle Training

Background:

  • Oxygen consumption (VO2) kinetics are crucial for assessing exercise performance.
  • Inspiratory muscle training is explored for its potential to enhance exercise capacity.
  • The impact of specific inspiratory muscle warm-ups on VO2 kinetics in rowing is not well-established.

Purpose of the Study:

  • To investigate the effect of an inspiratory muscle warm-up on VO2 kinetics during submaximal ergometer rowing.
  • To determine if inspiratory muscle warm-up influences the relationship between VO2 and time constant (τ1).

Main Methods:

  • Ten competitive male rowers performed submaximal constant intensity rowing tests to exhaustion.
  • Tests were conducted twice: with a standard rowing warm-up and with an added inspiratory muscle warm-up (2 sets of 30 reps at 40% maximal inspiratory pressure).
  • VO2 kinetics, including the time constant (τ1), were analyzed.

Main Results:

  • A significant correlation was observed between the time constant (τ1) and VO2 at 400s in the standard warm-up test (r = 0.78, p < 0.05).
  • This correlation was absent when inspiratory muscle warm-up was included (Test 2).
  • VO2max from an incremental test correlated positively with τ1 in the standard warm-up test (r = 0.71, p < 0.05) but not with τ1 in the added warm-up test.

Conclusions:

  • Adding a specific inspiratory muscle warm-up to a regular rowing warm-up did not significantly affect oxygen consumption kinetics during submaximal rowing.
  • The findings suggest that inspiratory muscle warm-up may alter the relationship between VO2 parameters and exercise intensity response in rowers.