Central and peripheral response to incremental cycling exercise in older untrained active men: a comparison of those in-between

Title:

Central and peripheral response to incremental cycling exercise in older untrained active men: a comparison of those in-between

Creator:

O'Neill, C. D., Kimmerly, D. S., and Dogra, S.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:77faabf2-fa25-45c7-b721-d8cad8737b7d
uuid:77faabf2-fa25-45c7-b721-d8cad8737b7d
issn:0862-8408

Subject:

Fyziologie člověka a srovnávací fyziologie, stárnutí, fitness, aging, stroke volume, VO2max, 14, and 612

Type:

article, články, model:article, and TEXT

Format:

print, bez média, and svazek

Description:

The aim of this study was to compare the central and peripheral components of cardiorespiratory fitness during incremental to maximal exercise between older men who were either recreational athletes (RA) or leisurely active (LA) men, i.e., those who fall between trained and untrained. This was a crosssectional study in which all subjects completed an exercise test on a cycle ergometer. Maximal oxygen consumption (VO2max) and ventilatory threshold (VT) were assessed using gas analysis, and central components of VO2max were assessed using a non-invasive thoracic bio-impedance device. VO2max (RA: 45.1±4.8 ml/kg/min; LA: 32.2±4.6 ml/kg/min, p≤0.001) and SV at maximal exercise (RA: 133.5±24.96 ml/beat; LA: 107.9±17.6 ml/beat, p=0.005) were higher in the RA group compared to the LA group. A plateau in SV occurred between 30-45 % of maximal exercise capacity in the RA group. No differences in SV were observed across workloads in the LA group. No differences in the calculated arterio-venous oxygen difference ((a-v)O2diff) were observed between groups. In conclusions, training volume appears to influence central components of cardiorespiratory fitness among a matched sample of older men who are neither trained nor untrained. This builds a case for increasing the volume of training to preserve cardiorespiratory fitness among older men., C. D. O'neill, D. S. Kimmerly, S. Dogra., and Obsahuje bibliografii

Language:

English

Rights:

http://creativecommons.org/publicdomain/mark/1.0/
policy:public

Source:

Physiological research | 2016 Volume:65 | Number:2

Harvested from:

CDK

Metadata only:

false