Journal article
The Effect of Short- and Long-Term Aerobic Training Years on Systemic O2 Utilization, and Muscle and Prefrontal Cortex Tissue Oxygen Extraction in Young Women
Journal of strength and conditioning research, Vol.33(8), pp.2128-2137
2019
Abstract
This study aimed to determine if systemic O2 utilization (V[Combining Dot Above]O2) and tissue oxygen extraction (deoxyhemoglobin [HHb]) in the vastus lateralis (VL), gastrocnemius (GAST) and pre-frontal cortex (PFC) were different during exercise between short-term trained (STT 6 - 24 months) and long-term trained (LTT > 5 yr) young women while controlling for current training load. Thirteen STT and 13 LTT participants completed ramp incremental (RI) and square-wave constant load (SWCL) tests on a cycle ergometer. In LTT compared to STT: (i) V[Combining Dot Above]O2 was higher during the RI (p = 0.024) and SWCL (p = 0.001) tests; (ii) HHb in the VL (p = 0.044) and GAST (p = 0.027) was higher in the RI test; and (iii) there were significant group x intensity interactions for V[Combining Dot Above]O2 in the SWCL test. The additional years of aerobic training in LTT compared to STT (LTT 7.1±1.9 vs STT 1.5±0.4 yr) resulted in higher V[Combining Dot Above]O2, and HHb in the VL and GAST. These results indicate that in young women, independent of current training load, systemic V[Combining Dot Above]O2 and peripheral muscle O2 extraction during exercise continues to increase beyond 24 months of aerobic training.
Details
- Title
- The Effect of Short- and Long-Term Aerobic Training Years on Systemic O2 Utilization, and Muscle and Prefrontal Cortex Tissue Oxygen Extraction in Young Women
- Authors
- Gavin L Buzza (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and EngineeringGeoff Lovell (Author) - University of the Sunshine Coast - Faculty of Arts, Business and LawChristopher D Askew (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and EngineeringColin Solomon (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
- Publication details
- Journal of strength and conditioning research, Vol.33(8), pp.2128-2137
- Publisher
- Lippincott Williams & Wilkins
- Date published
- 2019
- DOI
- 10.1519/JSC.0000000000002512
- ISSN
- 1064-8011
- Copyright note
- Copyright © 2019 The authors. This is a non-final version of an article published in final form in Buzza, Gavin L; Lovell, G; Askew, C D; Solomon, C. (2019). The effect of short and long term aerobic training years on systemic O2 utilization, and muscle and prefrontal cortex tissue oxygen extraction in young women. Journal of Strength & Conditioning Research. 33:8, 2128-2137
- 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; Forest Research Institute; School of Health - Sports & Exercise Science; School of Health and Behavioural Sciences - Legacy
- Language
- English
- Record Identifier
- 99451246902621
- Output Type
- Journal article
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