Comparative Exercise-Cardiorespiratory Performance of Normal Men in the Third, Fourth, and Fifth Decades of Life

Hanson, John S.; Tabakin, Burton S.; Levy, Arthur M.; Hill, David B.

doi:10.1161/01.cir.37.3.345

Cited by 47 publications

(21 citation statements)

References 38 publications

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“…As has been reported by others (HANSON et al, 1968;SEN GUPTA et al, 1974;BRUCE, 1984;ASTRAND and RODAHL, 1986;VOGEL et al ., 1986;SANCHEZ and DoNoso, 1988), physical work capacity (work load), maximum aerobic capacity, maximum oxygen pulse, maximum ventilation, and maximal heart rate responses to exercise were progressively lower in the older age groups (Table 3). The mean maximal ventilatory responses to exercise were found to generally agree with observations of other Indian workers (SEN GUPTA et at., 1974;JAIN et at., 1983) but seem considerably lower than corresponding Western figures.…”

Section: Discussionsupporting

confidence: 76%

Cardiopulmonary fitness in a sample of Malaysian population.

Singh

Sirisinghe

1989

Jpn.J.Physiol

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Lung capacity and maximum oxygen uptake (V02 max) were measured directly in 167 healthy males, from all the main races in Malaysia. Their ages ranged from 13 to 59 years. They were divided into five age groups (A to E), ranging from the second to the sixth decade. Lung capacities were determined using a dry spirometer and Voz max was taken as the maximum rate of oxygen consumption during exhaustive exercise on a cycle ergometer. Mean forced vital capacity (FVC) was 3.3 + 0.51 and it correlated negatively with age. Mean Voz max was 3.2 + 0.2/mm • n -1 (56.8 + 3.5 ml • kg -1 • min _1) in Group A (13-19 years) compared to 1.7±0.21 • min -1 (28.9 + 2.9 ml • kg -1 • min -1) in Group E (50-59 years). Regression analysis revealed an age-related decline in Voz max of 0.77 ml • kg -1 • min -1 • year -1. Multiple regression of the data gave the following equations for the prediction of an individual's Voz max: Vo z max (1 • min -1) =1.99 + 0.035 (weight) -0.04 (age), Voz max (ml • kg -1 • min -1) = 67.7 -0.77 (age), where age is in years, weight in kg. In terms of Voz max as an index of cardiopulmonry performance, Malaysians have a relatively lower capacity when related to the Swedish norms or even to those of some Chilean workers. Malaysians were, however, within the average norms of the American Heart Association's recommendations. Age-related decline in Vozmax was also somewhat higher in the Malaysians.

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Section: Discussionsupporting

confidence: 76%

Cardiopulmonary fitness in a sample of Malaysian population.

Singh

Sirisinghe

1989

Jpn.J.Physiol

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“…Grimby and Sodderholm (1962), Hanson et al (1968) and Montoye (1982) reported that the respiratory equivalent for oxygen attained during submaximal exercise increased with age. In addition, Johnson and Dempsey (1991) showed that elderly subjects exhibited a higher ventilatory response at a given submaximal metabolic demand; thus E a O 2 and E a CO 2 were elevated.…”

Section: Discussionmentioning

confidence: 99%

Effect of ageing on the ventilatory response and lactate kinetics during incremental exercise in man

Prioux¹,

Ramonatxo²,

Hayot³

et al. 2000

Eur J Appl Physiol

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We investigated the effects of age on breathing pattern, mouth occlusion pressure, the ratio of mouth occlusion pressure to mean inspiratory flow, and venous blood lactate kinetics during incremental exercise. Mouth occlusion pressure was used as an index of inspiratory neuromuscular activity, and its ratio to mean inspiratory flow was used as an index of the "effective impedance" of the respiratory system. Nine elderly male subjects [mean (SD) age: 68.1 (4.8) years] and nine young male subjects [mean (SD) age: 23.4 (1.3) years] performed an incremental exercise test on a bicycle ergometer. After a warm-up at 30 W, the power was increased by 30 W every 1.5 min until exhaustion. Our results showed that at maximal exercise, power output, breathing pattern, and respiratory exchange values, with the exception of tidal volume and the "effective impedance" of the respiratory system, were significantly higher in the young subjects. The power output and oxygen consumption values at the anaerobic threshold were also significantly higher in the young men. At the same power output, the elderly subjects showed significantly higher values for minute ventilation, respiratory equivalents for oxygen uptake and carbon dioxide output (CO(2)), mean inspiratory flow, occlusion pressure and lactate concentration than the young subjects. At the same CO(2) below the anaerobic threshold (0.5, 0.75, 1.00 and 1.25 l x min(-1)), minute ventilation and lactate concentration were also significantly higher in the elderly subjects. We observed a significantly higher minute ventilation at CO(2) values of 0.5, 0.75, 1.00 (P < 0.001) and 1.25 l x min(-1) (P < 0.05) in the elderly men, and a significantly higher lactate concentration at CO(2) values of 1.00 (P < 0.05) and 1.25 l x min(-1) (P < 0.01). In conclusion, the ventilatory response in elderly subjects is elevated in comparison with that in young subjects, both below and above the anaerobic threshold. This study demonstrates for the first time that this ventilatory increase, both below and above the threshold, is partly due to an increased lactate concentration.

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“…However, comparative studies of the maximum cardiac output in broad age groups are rare. BECKLAKE et al (1965) reported data on cardiac output during submaximal exercise in a broad range of ages, and HANSON et al (1968) and JULIUS et al (1967) studied maximum cardiac output between the ages of 20 to 60. In the previous reports by , maximum M1, Male subjects under 20 years; M2, subjects older than 20 years; F, female subjects.…”

Section: Discussionmentioning

confidence: 99%

Maximum Cardiac Output Related to Sex and Age

Miyamura

Honda

1973

Jpn.J.Physiol

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Summary Maximum cardiac output (Qmax) was determined for 233 males (aged 9 through 53 years) and 102 females (aged 9 through 20 years) by the carbon dioxide rebreathing technique during bicycle exercise. Maximum cardiac output of the males progressively increased from 12.5 to 22.0 liter/min until age 17 through 18 years and was maintained at this level until age 24 years. From age 25 years a decrease in Qmax to 16.7 liter/min by age 53 years was observed. Qmax of the females increased from a level of 10.5 liter/min at age 9 years to a Qmaximum of 15.5 liter/min at age 18 years, maintaining this level through age 20 years. Male Qmax for comparable ages above 18 years was 30 % higher than female Qmax . Using the average Qmax value of males of 23-24 years as an optimum value, the decrement in Qmax with each year was approximately 0.9 %.The aerobic work capacity (maximum oxygen intake; 102.a.) of humans is known to decrease with increasing years from an optimum age (ROBINSON, 1939;ASTRAND, 1960;. Oxygen intake is strongly related to cardiac output and one of the limitations in oxygen intake must be in the circulatory ability to deliver oxygen to the working muscles. Unfortunately, data regarding the determination of cardiac output at VO2max have previously been reported for only a limited number of subjects representative of a narrow range in ages. Furthermore, data regarding the Qmax of females are limited. Therefore, this study was designed to systematically investigate the effect of increasing age, from 9 through 53 years, on Qmaximum cardiac output for males, and from 9 through 20 years for females. It was anticipated that such a study would define the role played by the cardiac output in the age-related decrease in maximum aerobic capacity and add to knowledge of the progressive increase in aerobic capacity of males and females during the developmental process of puberty.

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Comparative Exercise-Cardiorespiratory Performance of Normal Men in the Third, Fourth, and Fifth Decades of Life

Abstract: SUMMARYThe circulatory and respiratory responses to five levels of treadmill exercise were recorded for 75 normal males divided equally in the age groups 20 to 29,30

Cited by 47 publications

References 38 publications

Cardiopulmonary fitness in a sample of Malaysian population.

Cardiopulmonary fitness in a sample of Malaysian population.

Effect of ageing on the ventilatory response and lactate kinetics during incremental exercise in man

Maximum Cardiac Output Related to Sex and Age

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