体力科学
Online ISSN : 1881-4751
Print ISSN : 0039-906X
ISSN-L : 0039-906X
18 巻, 1 号
選択された号の論文の3件中1~3を表示しています
  • 宮下 充正, 松井 秀治, 三浦 望慶, 星川 保, 亀井 貞次
    1969 年 18 巻 1 号 p. 1-8
    発行日: 1969/03/01
    公開日: 2010/09/30
    ジャーナル フリー
    The purpose of this study is to conduct the examination of heart rate and speed variations with respect to the various interval trainings of swimming. One trained, one post-trained and one untrained swimmers were employed for this study. The experiment was conducted during the summer of 1968. The temperature of atomosphere varied from 30°C to 33°C and that of water from 27°C to 29°C.
    The data of heart rate were obtained from the record of ECG. Two electrodes or ECG consisting of silver cups of 10mm in diameter were attached to the skin over sternum. In order to avoid mechanical and electrical disturbances, the electrodes were tightly fixed through the following procedures;
    1) The electrodes were pasted on cleaned skin with ECG jelly.
    2) The adhesive plaster was placed over the electrodes.
    3) The adhesive plaster was coated with wax.
    The wire of 20 meters was used to connect the electrodes and the recorder. On trial of interval training was consisted of two phases; 1) The active phase....To swim 50 meters according to his swimming ability. 2) The rest phase...To take a 0, 5, 10, 20, 30, 45 or 60 seconds interval between each 50 meters swimming. Each trial of training was repeated ten times.
    Results are as follows;
    1) The longer the rest period is, the higher the swimming speed is.
    2) All swimmers swim 50 meters at 60-80% of their maximum speed and the percent of the trained is higher than that of the untrained.
    3) Maximum heart rates of the trained, the post-trained and the untrained during tenth swimming are 188, 180 and 173 respectively, which are the same in every trial.
    4) Decreasing rates of heart rate during the rest period are 10 under in 5-10 seconds interval, 15-25 in 20-30 seconds interval and 20-50 in 45-60 seconds interval,
  • 尾谷 良行
    1969 年 18 巻 1 号 p. 9-27
    発行日: 1969/03/01
    公開日: 2010/09/30
    ジャーナル フリー
    接地足蹠面積測定器を試作し, これを用いて小学生男子65名, 女子61名, 計126名, 及び某女子体育大学一般学生, 陸上競技部員, 体操競技部員, 約120名についての接地足蹠面積の計測を行い, その増減と体格, 体力との相互関係, 合宿中の日間変動, 練習前後の増減, 増減の成因に関する実験結果等について大要次の如き成績を得た。
    1) 姿勢の相違による接地足蹠面積の変動について比較検討した結果, 直立姿勢に比較して前屈姿勢, 後屈姿勢での測定値は小さかった。従って測定の体位としては直立姿勢がのぞましいことが示唆された。
    2) 小学生の接面積値と, 身長, 体重, と50m走, 垂直跳, 立巾跳の各記録との相関々係を求めた結果, 身長, 体重とは相関が認められたが, 50m走, 立幅跳, 垂直跳の記録とはほとんど相関が認められなかった。
    3) 某女子体育大学運動部員の合宿中の練習前と練習後の接地足蹠面積を比較した場合, 練習後に於て増加の傾向を示した。
    4) しかし合宿中の日間変動のパターンとしては起床直後を最小として, 漸次, 増加の傾向を示し寝床前で最大となる傾向があることを認めた。
    5) 接地足蹠面積の増減を両足っま先立ち運動後の変化と片足つま先立ち運動後の他側足への影響で調べた結果, 共に運動後に減少傾向が認められた。
    6) 20℃と35℃の水中に足を浸漬した後の接面の変化について調べた結果, 影響は認められたが一定の傾向は見られなかった。
    7) 血液循環器系との関係を大腿部の圧迫帯による駆血によって接面の変化を調ぺた結果, 駆血によってある範囲内で面積の変動が見られた。
    8) 接面と同時に脈拍数, 血圧を測定し, これらを運動負荷前後で比較した結果いずれも負荷後に増大もしくは増加してこれらの間の関連が推定できた。
    9) 同様に運動負荷後の心電図, 足指尖脈波, と同時に接面を記録し, これらを分折した結果, 接面の増加と心電図, 特に脈波に於ての関連が認められた。
    10) 運動負荷前後の足穹窿のレ線撮影を若干例について行ない比較検討をしたが本例においては少くとも接面の増減に直接に影響を及ぼす様な変化は見られなかった。
  • 寺田 光世
    1969 年 18 巻 1 号 p. 28-32
    発行日: 1969/03/01
    公開日: 2010/09/30
    ジャーナル フリー
    The effects of maternal physical exercise during eary pregnancy upon the embryonic development of mice were studied as follows: A/Jax female mice at 10 to 16 weeks of age were imposed daily compulsory running at the speed of 15 meter/min. using a tread mill for 100 min. for the period from zero to 6th day of gestation (called severe exercise group) and for 50 min. from zero to 13th day of gestation (called mild exercise group) respectively. All mice together with the control group without the exercise were sacrificed at 18th day of gestation and the states of concep.uses as well as external and skeletal development of fetuses were observed. The results may be summarized as follows:
    1.Significant pregnancy-blocking effect was found in the severe exercise group and it is presumed that the treatment caused obstruction of implantation or maintaince of early pregnancy after implantation in most cases.
    2. No significant differences were observed in litter size, fetal mortality, fetal body weight and frequency of the malformed fetuses between pregnant mothers of each of experimental group and control group.
    3. The progress of ossification in the mild exercise group was slightly superior in some part of the skeleton to that of the control group.
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