教育医学
Online ISSN : 2434-9127
Print ISSN : 0285-0990
52 巻 , 3 号
選択された号の論文の5件中1~5を表示しています
  • Toshimitsu EBISU, Yoshimi SASAKI, Shigeo MIYAZAKI
    2007 年 52 巻 3 号 p. 155-164
    発行日: 2007年
    公開日: 2021/10/28
    ジャーナル オープンアクセス
     This paper presents authors' original study while discussing other studies with results of significance to the original study. The purpose of the original study is to clarify the chronic effects of aerobic exercise upon blood lipids in hyperlipidemia patients. The subjects in this study were diagnosed as having hyperlipidemia of the Jifukai Miyazaki Hospital (Incorporated Medical Institution 〔the Miyazaki Hospital〕). Five hyperlipidemia patients volunteered to be the experiment group while another five healthy subjects volunteered to be the control group. All of the 10 subjects had not exercised regularly prior to this experment. All the subjects were diagnosed as being able to safely follow the required exercise program for this study by a medical checkup. Informed consent was obtained from all of the subjects by explaining the purpose and the methods of this study. All of the subjects jogged on a treadmill in the Miyazaki Hospital two or more days a week for two months. In order to obtain the task goal, they maintained 40% - 60% of their maximal heart rate (max HR) for 30 minutes. The variables of this study determined by blood composition were the following: total cholesterol (TC), total triglycerides (TG), low density lipoprotein cholesterol (LDL), and high density lipoprotein cholesterol (HDL). Other variables in this study were the following: systolic blood pressure (SBP), diastolic blood pressure (DBP), body weight, body mass index (BMI), and percent body fat (%Fat). As results of this study, it was found that the TC decreased significantly in hyperlipidemia patients that followed the regimen of regular aerobic exercise.
  • 出村 慎一, 宮口 和義, 松田 繁樹
    2007 年 52 巻 3 号 p. 165-173
    発行日: 2007年
    公開日: 2021/10/28
    ジャーナル オープンアクセス
     これまで,瞬時に力を発揮する能力(力の立ち上がり)を評価することはほとんど無かった。本研究の目的は,ロータリーエンコーダを利用した簡易な多目的筋パワー測定器を用いてバリスティックな肘屈曲動作から発揮される単発的(実験Ⅰ)および反復的(実験Ⅱ)筋パワー発揮値の信頼性および発揮特性を検討することであった。  実験Ⅰにおける単発的筋パワー測定では,青年男子30名が,できるだけ素早くコンセントリック収縮のみで軽強度負荷を牽引した。筋パワーは牽引速度と負荷量の積から算出した。単発的発揮における時系列発揮パターンの再現性は高く,2回の測定値の級内相関も非常に高かった(ICC=0.89)。最大速度到達時間は個人差(0.25〜0.35秒)が認められたが,最大加速度到達時間は,概ね0.1秒前後(0.12±0.02秒)であった。  実験Ⅱにおける反復的筋パワー測定では,別の男女各10名が,最大肘屈曲力(MVC)の30%,40%,および50%の相対負荷で2秒に1回,全力のバリスティック筋収縮による反復牽引を30回実施した。男女とも40%および50%MVCでの再現性がとても高かった(r=0.86−0.98)。前述の%MVCの反復的筋パワー発揮におけるいずれの時点の牽引最大速度も,女子に比べ男子が高値であった。筋パワー値の低下傾向に性差が認められ,男子における50%MVC時の低下率は,特に大きかった。  単発的及び反復的筋パワー測定における測定値の信頼性は高く,荷重負荷法を利用した筋パワー測定器により,等速性測定器とは異なる筋パワー測定が可能と判断された.
  • 島田 茂, 出村 慎一, 長澤 吉則, 松田 繁樹, 南 雅樹, 山田 孝禎, 北林 保
    2007 年 52 巻 3 号 p. 174-184
    発行日: 2007年
    公開日: 2021/10/28
    ジャーナル オープンアクセス
     This study aimed to examine the differences in the developmental tendency of the physical fitness of young Japanese male students enrolled in 1990 and 2000 at the National College of Technology. A total of 127 and 77 males in both groups took physical fitness test over a four-year period, respectively. The 4 physique and 12 physical fitness and motor ability tests developed by the Ministry of Education, Culture, Sports Science, and Technology of Japan were used. The mean differences were examined using two-way analysis of variance with one-factor repeated measurements. Body linearity and volume growth increased with age in both the 1990 and 2000 groups. The students from the 2000 group had a larger muscle mass but no significant difference in percent body fat with age compared to the students from the 1990 group. Muscular strength developed with age in both groups and was superior in the lower grades of the 2000 group. Muscular power and cardiorespiratory endurance were inferior in all grades of the students in the 2000 group, but agility was superior. The development of flexibility and muscular endurance with age was almost the same in both the 1990 and 2000 groups. Male students at the National College of Technology may require increased muscular power and cardiorespiratory endurance.
  • −運動頻度と期間の違いからみた比較−
    重松 良祐, 坂井 智明
    2007 年 52 巻 3 号 p. 185-192
    発行日: 2007年
    公開日: 2021/10/28
    ジャーナル オープンアクセス
     A squarestepping exercise (SSE) was developed as a feasible and low-cost exercise program to prevent falling in older adults. We had confirmed its effects on the risk of falling; however, the appropriate SSE frequency and duration were unknown. The purpose of this study was to compare the effects of SSE performed once or twice a week for a total of 24 exercise sessions. Fifty-eight older adults participated in the study and were allocated into the EX1 (n = 26) and EX2 (n = 32) groups, following settled areas. The EX1 and EX2 groups attended the SSE session once and twice a week, respectively. Each session consisted of a warm-up (15 min), an SSE session (40 min), and a cool-down (15 min). Five physical performance tests (standing up from a lying position, chair-stands, walking around two cones, balancing on one leg with eyes closed, and sit-and-reach) were measured as risk factors for falling. A two-way (time by group) ANOVA indicated that interactions were found in the chair-stands and sit-and-reach, but all tests showed significant time effects. The improvement rate in the EX1 group was larger than that in the EX2 group in each test except for walking around two cones. Of the EX2 group, 23 participants continued the SSE for 3 additional months, and follow-up measurements were then performed. A one-way ANOVA indicated that the participants' ability to chair-stand was significantly increased. In conclusion, performing SSE either once or twice weekly guarded against the risk of falling, and a long-term regimen could provide even better effects.
  • −血漿ビタミンCと貧血−
    大川 尚子, 吉本 佐雅子, 松浦 尊麿, 永井 純子, 中神 勝, 勝野 眞吾
    2007 年 52 巻 3 号 p. 193-201
    発行日: 2007年
    公開日: 2021/10/28
    ジャーナル オープンアクセス
     Anemic children with low hemoglobin had significantly higher plasma ascorbic acid than healthy children. Plasma ascorbic acid negatively correlated to hemoglobin in school children. The plasma level of ascorbic acid was higher in the children who had low daily intake of ascorbic acid. These results suggest that the plasma ascorbic acid level rises compensating to improve the efficiency of iron absorption in the children with low hemoglobin. In addition, ascorbic acid intake in daily life is low in the children. As the result, the ascorbic acid level in the whole body have decreased. Guidance that increases the ascorbic acid intake with the replenishment of iron is necessary for the children.
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