The Journal of Education and Health Science
Online ISSN : 2434-9127
Print ISSN : 0285-0990
Volume 53 , Issue 3
Showing 1-7 articles out of 7 articles from the selected issue
  • Katsunori FUJII
    2008 Volume 53 Issue 3 Pages 273-285
    Published: 2008
    Released: October 27, 2021
    JOURNAL OPEN ACCESS
     In the present study, delayed menarche in female athletes was individually verified by the interval between age at menarche and the age at the maximum peak velocity (MPV) of height derived from the wavelet interpolation method (WIM), however, an evaluation system for delayed menarche could not be established. It is necessary to distinguish between female athletes in whom delayed menarche occurs or not in every athletes in order to elucidate the effect of regular training for delayed menarche. For that reason, the evaluation system for delayed menarche is derived from regression analysis between age at menarche and age at MPV of height. Health examination records of 144 female athletes in their first year at a university who participated in the national level competition were reviewed from the first grade of elementary school until the third year of high school (from 1986 to 1998). The longitudinal data of height were obtained from the health examination records. The age at menarche and the history of athletic sports training in these data were researched by questionnaires and interview. Non-athletes were researched as control group similar to the athletes, and 209 were randomly selected in order to construct the criterion of evaluation in delayed menarche. Least square approximation polynomials of age at menarche for age at MPV of height from the first to the fourth order were constructed for the evaluation in delayed menarche, and the regression equation of the first order was valid. So the linear regression evaluation of age at menarche for age at MPV of height was applied for each athletes. The score judged by the regression evaluation was derived in each athlete, and a positive score was shown in each athletic sport except table tennis and tennis. Athletic sports showing strongly positive scores were soft tennis, volleyball, softball and track and field.
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  • Masakatsu NAKADA, Shinichi DEMURA, Shunsuke YAMAJI, Shinji KONDOU
    2008 Volume 53 Issue 3 Pages 286-292
    Published: 2008
    Released: October 27, 2021
    JOURNAL OPEN ACCESS
     This study aimed to use two different noninvasive continuous blood pressure monitoring devices to compare changes in blood pressure during intermittent progressive workload exercise with a bicycle ergometer. Subjects included 12 males (age 19.9±1.4 years, height 171.8±5.1cm, and body weight 64.7±6.3kg). Blood pressure was monitored with the PORTAPRES (Finapres Medical Systems), which relies on the volume-compensation method, and the Radia press RBP-100 (KANDS), which uses variations in blood hemoglobin.  Systolic blood pressure (SBP) and diastolic blood pressure (DBP) were almost the same when measured by both devices during rest. The outlier rate of continuous blood pressure values during rest was less when measured by the PORTAPRES than by the Radia press RBP-100. With the PORTAPRES, the outlier rate tended to increase during exercise rather than during rest. In addition, SBP and DBP increased with progressive workload. However, the increase of SBP was larger in the PORTAPRES. In summary, the pressure changes measured by both devices were almost the same during rest, but differed during intermittent progressive workload exercise.
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  • Masanobu UCHIYAMA, Shinichi DEMURA, Yuta YAMAMOTO, Hiroki AOKI, Sohee ...
    2008 Volume 53 Issue 3 Pages 293-300
    Published: 2008
    Released: October 27, 2021
    JOURNAL OPEN ACCESS
     We hypothesized that based on previous reports, several COP parameters would differ based on balance ability in healthy adults. The aim of this study was to examine the feasibility of balance assessment in healthy adults based on quantitative COP measurements.  Fifty three healthy adults were classified into superior, average and inferior groups based on their performances in the one-legged stance (OLS) test with closed eyes. COP was measured three times during OLS for 120 s. Participants were instructed to stand on one foot for 90 s after maintaining an upright stance on both feet for 30 s. There was a significant difference in the standard deviations of medial-lateral directions COP trajectory during the static phase (the last 10 s). Plantar flexor muscle strength was significantly related to COP parameters in the dynamic phase of OLS.  The amplitude of medial-lateral COP sway differs between young adults of different balance abilities. Dorsal and plantar flexor muscle strength contributes to postural steadiness just after shifting stance from two-legged to one-legged. However, they play a small role in the maintenance of previously stabilized posture. Balance ability may be assessed by measurement of the amplitude of medial-lateral COP sway in the static phase.
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  • A Test of a Mediation Model
    Katsunori SUMI
    2008 Volume 53 Issue 3 Pages 301-311
    Published: 2008
    Released: October 27, 2021
    JOURNAL OPEN ACCESS
     Of numerous factors which are known to have some influences on psychological adjustment, optimism/pessimism as personality traits and social support as a facet of social relationships have received considerable attention. However, we do not know enough about how optimism/pessimism and social support influence psychological adjustment. Accordingly, the present study assessed the role of optimism/pessimism and social support as predictors of psychological adjustment (subjective well-being and depressive symptoms) by path analyses.  Data was collected from a sample of 140 college students (mean age 20.7 yr.), 21 women and 119 men. The Japanese version of the following scales were administered to the subjects: the Revised Life Orientation Test, the Social Support Questionnaire Short-Form, the Satisfaction With Life Scale, and the depressive symptoms subscale of the Hopkins Symptom Checklist.  Results of the path analyses examining a model of social support as a mediator of the link between optimism/pessimism and psychological adjustment mostly supported both direct effects and indirect effects of optimism/pessimism on subjective well-being and depressive symptoms. It was found that optimism/pessimism had direct effects on subjective well-being and depression. Additionally, optimism/pessimism also influenced social support, which in turn had effects on subjective well-being and depressive symptoms; however, it was not found that social support mediated relationship between pessimism and subjective well-being. Lastly, implications of the present findings and some potential limitations were discussed.
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  • Comparison of H-line and Plantar Arch Proportion Methods
    Kosho KASUGA, Shinichi DEMURA, Shigeki MATSUDA, Hiroki AOKI
    2008 Volume 53 Issue 3 Pages 312-317
    Published: 2008
    Released: October 27, 2021
    JOURNAL OPEN ACCESS
     This study aimed to examine inter- and intra-tester reliabilities of H-line and plantar arch proportion methods of plantar arch evaluation in preschool children and to clarify the relationship between both methods. Subjects consisted of 122 preschool children aged 4 to 6 years. The contact surface area of their soles was recorded with the Pedoscope, and their plantar arches were assessed by both evaluation methods. H-line and plantar arch proportion methods required approximately 5 and 10 minutes, respectively, to calculate assessment value for each subjects. Intra- and inter-tester reliabilities were very high (ICC=0.95〜1.00) in both evaluation methods. The correlations of both evaluation methods according to age were 0.77〜0.94 and partial correlations controlled for age were 0.88〜0.91. In conclusion, both evaluation methods have very high intra- and inter-tester reliabilities and can assess the plantar arch similarly. For simplicity and convenience, the H-line method may be more effective.
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  • His Life History, Families, Abilities of Daily Living and Physical Health Conditions
    Masafumi AKISAKA, Fumie YAMAMOTO, Noriyo TOMITA, Yoshiomi HAMADA
    2008 Volume 53 Issue 3 Pages 318-323
    Published: 2008
    Released: October 27, 2021
    JOURNAL OPEN ACCESS
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  • Nana SAKAGUCHI, Mihou NAKAJIMA, Masahiro MORI, Yoshiaki YAMASHITA, Yos ...
    2008 Volume 53 Issue 3 Pages 324-333
    Published: 2008
    Released: October 27, 2021
    JOURNAL OPEN ACCESS
     Effects of the exercise on physical and mental health were investigated for sound female college students, about 20 years old. Bicycle exercise setting exercise intensity within 40-70 % of maximum heart rate was carried out for 6 min, after free exercise with quickness for 3 min. These exercises were carried out at the rate of 1-3 times a week during 3 weeks. The exercise showed a tendency to increase the level of resting energy expenditure(REE), though it produced no significant change in such body composition as height, body weight and somatic fat rate. The arterial oxygen content was decreased by the first experiment of exercise training of total 3 times, but this did not appear in later experiments. Whereas, the venous oxygen content was not affected. It was indicated that the exercise significantly reduced the mental fatigue degree by some evaluations with a self-recording questionnaire. From the above result, the exercise accelerated REE, and was adapted to the exercise environment. These results suggested that the exercise may enhance the activity of oxygen transport and oxygen reception in organization, and lead to the appearance of an exercise adaptation.
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