The Improvement in Exercise Performance during Reduced Muscle Mass Exercise is Associated with an Increase in Femoral Blood Flow in Older and Younger Endurance-Trained Athletes

Toni Haddad; Angela L. Spence; Jeremiah Peiffer; Gregory M. Blain; Jeanick Brisswalter; Chris R. Abbiss

doi:10.52082/jssm.2024.46

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The Improvement in Exercise Performance during Reduced Muscle Mass Exercise is Associated with an Increase in Femoral Blood Flow in Older and Younger Endurance-Trained Athletes

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The Improvement in Exercise Performance during Reduced Muscle Mass Exercise is Associated with an Increase in Femoral Blood Flow in Older and Younger Endurance-Trained Athletes

Toni Haddad, Angela L. Spence, Jeremiah Peiffer, Gregory M. Blain, Jeanick Brisswalter and Chris R. Abbiss

Journal of sports science & medicine, Vol.23, pp.46-55

2024

DOI: https://doi.org/10.52082/jssm.2024.46

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Abstract

This study investigated whether the improved performance observed with maximal self-paced single-leg (SL), compared with double-leg (DL) cycling, is associated with enhanced femoral blood flow and/or altered tissue oxygenation. The hyperaemic response to exercise was assessed in younger and older athletes. Power output was measured in 12 older (65 ± 4 y) and 12 younger (35 ± 5 y) endurance-trained individuals performing 2 x 3 min maximal self-paced exercise using SL and DL cycling. Blood flow (BF) in the femoral artery was assessed using Doppler ultrasound and muscle oxygenation was measured using near-infrared spectroscopy on the vastus lateralis. SL cycling elicited a greater power output (295 ± 83 vs 265 ± 70 W, P < 0.001) and peak femoral BF (1749.1 ± 533.3 vs 1329.7 ± 391.7 ml/min, P < 0.001) compared with DL cycling. Older individuals had a lower peak BF in response to exercise (1355.4 ± 385.8 vs 1765.2 ± 559.6 ml/min, P = 0.019) compared with younger individuals. Peak BF in response to exercise was correlated with power output during SL (r = 0.655, P = 0.002) and DL (r = 0.666, P = 0.001) cycling. The greater exercise performance during SL compared with DL cycling may be partly explained by a greater hyperaemic response when reducing active muscle mass. Despite regular endurance training, older athletes had a lower femoral BF in response to maximal self-paced exercise compared with younger athletes.

Details

Title: The Improvement in Exercise Performance during Reduced Muscle Mass Exercise is Associated with an Increase in Femoral Blood Flow in Older and Younger Endurance-Trained Athletes
Authors/Creators: Toni Haddad
Angela L. Spence
Jeremiah Peiffer
Gregory M. Blain
Jeanick Brisswalter
Chris R. Abbiss
Publication Details: Journal of sports science & medicine, Vol.23, pp.46-55
Publisher: Journal of Sports Science and Medicine (JSSM)
Identifiers: 991005630998907891
Copyright: © Journal of Sports Science and Medicine (2024)
Murdoch Affiliation: Centre for Healthy Ageing; Research and Innovation Office
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Citation topics: 1 Clinical & Life Sciences; 1.172 Sports Science; 1.172.648 Exercise Physiology
Web Of Science research areas: Sport Sciences
ESI research areas: Clinical Medicine