Japanese Journal of Physical Fitness and Sports Medicine
Online ISSN : 1881-4751
Print ISSN : 0039-906X
ISSN-L : 0039-906X
Volume 24, Issue 2
Displaying 1-3 of 3 articles from this issue
  • SHIGEHIRO YOSHIZAWA, TADATOSHI ISHIZAKI, HIROKO HONDA
    1975 Volume 24 Issue 2 Pages 37-44
    Published: June 01, 1975
    Released on J-STAGE: September 30, 2010
    JOURNAL FREE ACCESS
    Maximal oxygen uptakes of 85 preparatory school children (46 for males and 39 for females), aged 5 and 6 years, were determined by means of ground run. Their motor performances such as 25 meter dash run, 50 meter dash run, standing broad jump, 5 minute endurance run and muscle strengths of grip and back were also measured. The following results were obtained:
    1) Mean values of maximal oxygen uptakes in terms of body weights were 49.46ml/ kg/min for males and 46.30ml/kg/min for females and the significant difference was found between the sexes.
    2) Correlation coefficients between the first and second measurements in the 5 minute endurance run were .9044 for males and .7757 for females, and therefore the reproducibi-lity was higher for males than for females.
    3) Correlation coefficients between maximal oxygen uptakes in terms of body weights and the performances of 5 minute endurance run were .4170 for males and .0486 for females.
    4) Correlation coefficients between body weights and absolute values of maximal oxygen uptakes were .8986 for males and .5626 for females.
    5) Regression equations of absolute values of maximal oxygen uptakes (1/min) to body weights (kg) were y=.051x-.025 for males and y =.024x+.408 for females.
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  • TOSHIO MIYAZAKI
    1975 Volume 24 Issue 2 Pages 45-60
    Published: June 01, 1975
    Released on J-STAGE: September 30, 2010
    JOURNAL FREE ACCESS
    In an attempt to evaluate the effect of taurine on fatigue, a double blind comparative study was performed by a cross-over method in winter, 1972.
    The study consisted of two experimental terms. In each terms, a certain group of people in the similar life environments was loaded by a nocturnal marching on the last day of the 7 days' medication term, and objectively investigated for the degree of fatigue.
    Medication was dispensed in identical-appearing capsules containing 500mg of taurine or placebo, with two capsules three times per day. The subjects were divided at random into two groups for the medication, one receiving taurine in the first term and placebo in the second term, and the other vice versa.
    The degree of fatigue was evaluated by means of Flicker Test, and each ten check items of (a), (b) and (c) from “Fatigue Scale of the Industrial Fatigue Research Comittee of Japan Industrial Health Association”.
    In each term, fatigue was loaded on the 7th day by 8 hours' nocturnal marching, which was followed by 3 hours' napping time. Evaluation was done at 8 : 30 a.m. (iv, before work) and 6 : 00 p.m. (v, after usual daily work and before load) on the 7th day and 4 : 00 a.m. (vi, immediately after load) and 8 : 30 a.m. (vii, after napping) on the 8th day.
    The results are as follows:
    (1) The Flicker Test values at (iv, v, vi) show no significant difference between taurine and placebo groups, but the values at (vii) in placebo group are significantly higher than those in taurine group.
    (2) As compared with placebo group, taurine group shows significantly lower degree of subjective fatigue at (vi) in Fatigue Scale (b) and (c) and at (vii) in Fatigue Scale (b) .
    After a short time rest following labor, a further decrease in the Flicker value and the accompanied increase in the subjective fatigue are usually observed.
    In this case, however, the subjective fatigue was improved with a normal change of the Flicker value, and this may be considered as a desirable state for recovery process of Fatigue.
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  • [in Japanese]
    1975 Volume 24 Issue 2 Pages 63-85
    Published: June 01, 1975
    Released on J-STAGE: September 30, 2010
    JOURNAL FREE ACCESS
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