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A Comparison of V̇O2, and Muscle and Prefrontal Cortex Tissue Oxygen Extraction Between Short and Long-term Aerobically Trained Men Aged 40 - 60 Years356.77 kB
Published VersionCC BY-ND V4.0, Open Access
Journal article
A Comparison of V̇O2, and Muscle and Prefrontal Cortex Tissue Oxygen Extraction Between Short and Long-term Aerobically Trained Men Aged 40 - 60 Years
International Journal of Exercise Science, Vol.13(3), pp.964-978
2020
Abstract
This study was designed to compare systemic O2 utilization (V̇O2), and changes in tissue O2 extraction [deoxyhemoglobin (ΔHHb)] in the vastus lateralis (VL), gastrocnemius (GAST) and pre-frontal cortex (PFC) tissue; between aerobically short-term trained (STT) and long-term trained (LTT) older men (40 - 60 yr) who were matched for current training load. On separate occasions, 14 STT and 14 LTT participants completed ramp incremental (RI) and square-wave constant load (SWCL) tests on a cycle ergometer. In LTT compared to STT; (i) V̇O2 was higher during the RI (p > 0.001) and SWCL (p > 0.001) tests, (ii) ΔHHb in the GAST was greater in SWCL (p = 0.011); and (iii) ΔHHb in the PFC was greater at 90% GET during SWCL (p = 0.011). The additional years of training in LTT compared to STT (LTT 17.50yr ± 6.94yr vs STT 1.68yr ± 0.31yr) were associated with higher V̇O2peak, and sub- GET V̇O2,and ΔHHb in the GAST and PFC at sub- GET exercise, despite there being no difference in current training volume.
Details
- Title
- A Comparison of V̇O2, and Muscle and Prefrontal Cortex Tissue Oxygen Extraction Between Short and Long-term Aerobically Trained Men Aged 40 - 60 Years
- Authors
- Gavin Buzza (Author) - Charles Sturt UniversityGeoff Lovell (Author) - University of the Sunshine Coast, Queensland, School of Social Sciences - LegacyChristopher Askew (Author) - University of the Sunshine Coast, Queensland, School of Health and Sport Sciences - LegacyColin Solomon (Author) - University of the Sunshine Coast, Queensland, School of Health and Sport Sciences - Legacy
- Publication details
- International Journal of Exercise Science, Vol.13(3), pp.964-978
- Publisher
- Western Kentucky University
- Date published
- 2020
- ISSN
- 1939-795X
- Copyright note
- © 2020. Licensed under the Creative Commons Attribution-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nd/4.0/
- Organisation Unit
- Centre for Human Factors and Systems Science; Tropical Forests and People Research Centre; School of Social Sciences - Legacy; University of the Sunshine Coast, Queensland; School of Health and Sport Sciences - Legacy; Cancer Research Cluster; Forest Research Institute; School of Health - Sports & Exercise Science; School of Health and Behavioural Sciences - Legacy
- Language
- English
- Record Identifier
- 99479406402621
- Output Type
- Journal article
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