ENDURANCE – VO2 – AGING


2 RESEARCH ARTICLES


EFFECTS OF AGE AND LONG TERM ENDURANCE TRAINING ON VO2 KINETICS – 2014


Grey TM1, Spencer MD, Belfry GR, Kowalchuk JM, Paterson DH, Murias JM.
11Canadian Centre for Activity and Aging, 2School of Kinesiology, 3Department of Physiology and Pharmacology, The University of Western Ontario, London, ON, Canada; 4Faculty of Kinesiology, University of Calgary, Calgary, AB, Canada
PURPOSE
– Examine effects of age and training status on pulmonary oxygen uptake (VO2p) kinetics of untrained and trained young, middle-aged and older groups of men

METHODS
– Breath-by-breath VO2p and NIRS-derived muscle deoxygenation ([HHb]) were monitored continuously in:
(1) Young (20-39 yr) trained (YT; n=8) and untrained (YuT; n=8) men
(2) Middle-aged (40-59 yr) trained (MT; n=9) and untrained (MuT; n=9) men
(3) Older (60-85 yr) trained (OT; n=9) and untrained (OuT; n=8) men
– Cycling at 80% of the estimated lactate threshold (3 repeats) were modeled as a mono-exponential
CONCLUSION
(1) Lower VO2 kinetics typically observed in older individuals can be prevented by long-term endurance training interventions
(2) The absence of age-related slowing of VO2 kinetics appears to be partly related to a preservation of the matching of O2 delivery to O2 utilization in trained older individuals


NEW RECORDS IN AEROBIC POWER AMONG OCTOGENERIAN LIFELONG ENDURANCE ATHLETES – 2013


Scott TrappePer Tesch et al


 

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