Studies on the Body Composition of the Old Persons

Murati, Teiji; Fukunaga, Yasuichiro; Sawada, Terufumi; Nagai, Teruo; Iinuma, Takeshi; Suzuki, Tsuguyoshi

doi:10.3143/geriatrics.4.225

Jpn. j. geriat

1967

DOI: 10.3143/geriatrics.4.225

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Studies on the Body Composition of the Old Persons

Teiji Murati¹,

Yasuichiro Fukunaga²,

Terufumi Sawada³

et al.

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1982

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“…This formula was originally constructed for young Japanese male adults aged 20 -29 (40). According to age-difference data on potassium content in kg of body weight for Japanese males (41), the value in the 40's age group was slightly smaller than that in both the 20's and 30's age groups in which no difference was observed. Therefore, the estimated LBM value for the present group aged 40's will be carefully collated with the body cell mass value in the Result section.…”

mentioning

confidence: 87%

Group regressions predicting oxygen consumption from heart rates in Japanese male adults.

Inaoka

Suzuki

1982

Journal of Nutritional Science and Vitaminology, J Nutr Sci Vit

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The purpose of this paper is to evaluate errors among group regressions predicting oxygen consumption (Vo2) by heart rate (HR) method, and to obtain the fittest regression for each respective age groups and possibly a single regression for the entire subject population. Twenty male adults participated in the study and were divided into three age groups. Body height, weight, surface area (SA), lean body mass (LBM) and body cell mass (BCM) were determined by the standard anthropometry and the measurement of 40K by a whole body (human) counter. At the submaximal work test, Vo2 and HR were calculated at 4 to 6 grades of work loads on a bicycle ergometer. All correlation coefficients of Vo2 to HR for groups were over 0.885 (p<0.001), while regression showed differences in slopes and intercepts between age groups. After correction applying indices of body com position and the ratio to resting HR (HRR), correlation coefficients of the old age group became greater, whereas correlation coefficients for the other two groups were almost unchanged when Vo2 were corrected by SA, LBM or BCM and related to HR. The age-difference in the group regressions disappeared in the relation between Vo2 corrected by LBM and HR. Among ten sets of relation of corrected Vo2 and HR (or HRR), only three indicated the age-difference clearly. These facts suggest the possibility of a single regression for all groups. Tentative regression equation for all the study-subjects showed the highest value of correlation coefficient, 0.936 (p<0.001) in case that Vo2 corrected by LBM or BCM was related to HRR. It was concluded that the group regression should be constructed by adopting HR (for young age groups) or HRR (for old age groups) with the correction of Vo2 by SA, LBM or BCM (for both young and old age groups). We can use additionally body weight (for only old age groups); and that a single group regression, covering an age-range up to 50 years old, is possibly applied in the relation between corrected Vo2 by LBM or 631 632 T. INAOKA and T. SUZUKI

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mentioning

confidence: 87%

Group regressions predicting oxygen consumption from heart rates in Japanese male adults.

Inaoka

Suzuki

1982

Journal of Nutritional Science and Vitaminology, J Nutr Sci Vit

Self Cite

View full text Add to dashboard Cite

show abstract

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Studies on the Body Composition of the Old Persons

Cited by 1 publication

References 10 publications

Group regressions predicting oxygen consumption from heart rates in Japanese male adults.

Group regressions predicting oxygen consumption from heart rates in Japanese male adults.

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