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Cited by 135Cardiovascular and exercise physiologyPhysical Activity and HealthSports Performance and Training

Influence of age and gender on cardiac output-V˙o2relationships during submaximal cycle ergometry

Proctor, David N., Beck, Kenneth C., Shen, Peter H., Eickhoff, Tamara J., Halliwill, John R., Joyner, Michael J.·1998·Journal of Applied Physiology
DOI 10.1152/jappl.1998.84.2.599
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Abstract

Proctor, David N., Kenneth C. Beck, Peter H. Shen, Tamara J. Eickhoff, John R. Halliwill, and Michael J. Joyner. Influence of age and gender on cardiac output-V˙o 2 relationships during submaximal cycle ergometry. J. Appl. Physiol. 84(2): 599–605, 1998.—It is presently unclear how gender, aging, and physical activity status interact to determine the magnitude of the rise in cardiac output (Q˙c) during dynamic exercise. To clarify this issue, the present study examined theQ˙c-O 2 uptake (V˙o 2) relationship during graded leg cycle ergometry in 30 chronically endurance-trained subjects from four groups ( n = 6–8/group): younger men (20–30 yr), older men (56–72 yr), younger women (24–31 yr), and older women (51–72 yr). Q˙c (acetylene rebreathing), stroke volume (Q˙c/heart rate), and whole bodyV˙o 2 were measured at rest and during submaximal exercise intensities (40, 70, and ∼90% of peakV˙o 2). Baseline resting levels of Q˙c were 0.6–1.2 l/min less in the older groups. However, the slopes of theQ˙c-V˙o 2 relationship across submaximal levels of cycling were similar among all four groups (5.4–5.9 l/l). The absolute Q˙c associated with a given V˙o 2(1.0–2.0 l/min) was also similar among groups. Resting and exercise stroke volumes (ml/beat) were lower in women than in men but did not differ among age groups. However, older men and women showed a reduced ability, relative to their younger counterparts, to maintain stroke volume at exercise intensities above 70% of peakV˙o 2. This latter effect was most prominent in the oldest women. These findings suggest that neither age nor gender has a significant impact on theQ˙c-V˙o 2 relationships during submaximal cycle ergometry among chronically endurance-trained individuals.

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Crossref · 10.1152/jappl.1998.84.2.599

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  • Proctor et al. reported that the average heart rate for males was 70-72 BPM and the average for females was 78-85 BPM in 16 endurance-trained men and 14 endurance-trained women.

    “Proctor et al. reported that the average heart rate for males was 70–72 BPM and the average for females was 78–85 BPM in 16 endurance-trained men and 14 endurance-trained women [99].”

    From Sources of inaccuracy in photoplethysmography for continuous cardiovascular monitoring (2021) · cites this paper as [99]

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Authors
Proctor, D. N., Beck, K. C., Shen, P. H., Eickhoff, T. J., Halliwill, J. R., & Joyner, M. J.
Affiliations
Mayo Clinic (US)
ORCID
Venue
Journal of Applied Physiology
Publisher
American Physiological Society
Published
1998-02-01
Volume
84
Issue
2
Pages
599-605
ISSN
  • 0161-7567 (ISSN-L)
  • 8750-7587
  • 1522-1601
DOI
10.1152/jappl.1998.84.2.599
OpenAlex
W1936177047
Cited by
135
References
34
Citations by year
2026: 4 · 2025: 7 · 2024: 5 · 2023: 5 · 2022: 3 · 2021: 1 · 2020: 3 · 2019: 3 · 2018: 7 · 2017: 2 · 2016: 7 · 2015: 7 · 2014: 7 · 2013: 3 · 2012: 11
FWCI
4.57
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Applied Physiology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Heart, Lung, and Blood Institute (HL-46493)
  • National Institute of General Medical Sciences (GM08288, T32GM008288)
  • National Center for Research Resources (MO1-RR00585, M01RR000585)
Topics
  • Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
  • Health Sciences › Medicine › Physiology › Physical Activity and Health
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Sports Performance and Training
Keywords
cardiac output, oxygen consumption, stroke volume, aging, sex differences, endurance athletes, submaximal exercise, cycle ergometry
MeSH terms
Adult, Aged, Aging, Cardiac Output, Cross-Sectional Studies, Exercise Test, Female, Hemodynamics, Humans, Male, Middle Aged, Oxygen Consumption, Physical Education and Training, Physical Endurance, Sex Factors

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