巻号一覧
25 巻, 1 号
選択された号の論文の6件中1～6を表示しています
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坂木 佳寿美1976 年 25 巻 1 号 p. 1-6
発行日: 1976/03/01
公開日: 2010/09/30
ジャーナル フリー1.皮脂腺の分布状態を写真 (皮脂を薄層に吸着させる) から判定することができる。
2.皮脂の分泌状態から, 大きい皮脂腺が正中線附近に存在しているものと思われる。また, 皮脂腺の分布状態はモザイク様で, 個人差, 性差, 年令差は著しい。
3.「射撃」という精神的緊張を伴なう種目において, 皮脂分泌が亢進する傾向にあることを写真と分泌量から今回も確認した。抄録全体を表示PDF形式でダウンロード (6329K) -
長沢 弘, 小林 寛道, 水野 義雄, 松井 秀治1976 年 25 巻 1 号 p. 7-15
発行日: 1976/03/01
公開日: 2010/09/30
ジャーナル フリーThree middle-aged men (55-58 years) trained for 50 weeks. Exercise consisted of twelve minutes walking on the motor driven treadmill at the load of 70% of maximum oxygen intake, three times per week.
Evaluations for maximal and submaximal work were made at 5-week intervals using treadmill walking method. Mean maximum oxygen intake improved 29.5% (26.1-39.7 %) over the 50-week period from 1.93 to 2.50 l/min, Mean maximum oxygen intake per body weight improved 24.5% from 34.9 to 43.5 ml/kg.min.
But through the training session, the maximum values of maximum oxygen intake were obtained over the 25-week to 35-week period on each subject. After that period, maximum oxygen intake were unchanged or slightly dropped neverthless the training was continued.
As the linear relationship was found between the oxygen intake and heart rates during exercise, the regression equations were calculated on each maximal test. The regression line might represent the oxygen pulse on each heart rates level during exercise. The oxygen pulse improved clealy also during submaximal work. The improve-ment of oxygen pulse were distinctive to 25-35 week period and after that no change were occured.
In the submaximal test, there was seen clear improvement of efficiency during 20 minutes walking at the load of 70%, 50%, 30% of maximum oxygen intake respectively, even after the period that the increment of maximum oxygen intake could not be caused by training.抄録全体を表示PDF形式でダウンロード (1017K) -
松本 越生, 松本 秀俊, 佐藤 宏1976 年 25 巻 1 号 p. 16-27
発行日: 1976/03/01
公開日: 2010/09/30
ジャーナル フリーThe electrocardiographic findings in more than 20, 000 athletes are studied.
I. Resting electrocardiograms (ECG) of 10, 149 high school athletes are analysed. Abnormal ECG are encountered in 12.45%. Following findings are found: Right bundle branch block (RBBB) (4.03%), Left ventricular hypertrophy (2.89%), Premature beats (1.09%), A-V block (0.86%), Right ventricular hypertrophy (0.85%) . RBBB are further analysed and divided into 4 types from the QRS pattern in V1. The frequent RBBB in young athletes is confirmed and its significance is also discussed.
II. T wave abnormalities are observed in 5 cases of resting ECGs of all this sample. Essential abnormalities are T wave inversion simulating myocardial infarction in limbs leads (usually in II, III, aVF) and precordial leads and concomitant slight elevation in precordial leads.
Physical and laboratory examinations in 5 cases disclose no evidence of organic heart disease. In 4 of 5 cases, exercise ECGs are revealed the normalisation-tendency of the T wave change. A brief discussion concerning the possible mechanisms of these changes are made.
III. ECGs of middle and old age athletes are also observed at rest and after the long distance running. The distance are different in each age-group, but all of them run at least more than 5 km. The 409 resting ECGs are taken before the running game and the 201 post running tracing are obtained as soon as possible after the game.
At rest, ECG findings suggestive of coronary insufficiency are detected in 4 of 108 samples of sixties group and in 1 of 25 samples of seventies group.
Ischemic electrocardiographic responses after the running game are found as follow: 3/51 (5.8%) of fourties group, 9/59 (15.1%) of fifties group, 20/70 (28.6%) of sixties group and 6/21 (28.6%) of over seventies group.
Arrhythmias are not so frequently observed in each group. These ischemic re-sponses suggest that medical check-up especially cardiovascular evaluation is necessary in middle and old age athletes to prevent accidents on sports.抄録全体を表示PDF形式でダウンロード (15766K) -
永田 晟, 室 増男, 北本 拓1976 年 25 巻 1 号 p. 28-36
発行日: 1976/03/01
公開日: 2010/09/30
ジャーナル フリー生体の物理現象即ち表: 面筋電図を振動論的解明によって周波数分析法を応用した。その結果, 等張性筋収縮運動パターンと筋放電周波数成分に一連の規則性を見い出した。等張性筋収縮時の上腕部・大腿部の周波数特性をPower Spectrum Densityから定量的に求めた。その結果,
1) 定常性などの統計的確率過程の仮定のもとで, 表面筋電図の相関々数並びにFourier解析法が有効な分析法であることがわかった。
2) 分析した全周波数帯域 (Range 500Hz) 中, 著明な周波数成分が二分して現われ, LFB (約20Hz) とHFB (約75～90Hz) にわかれた。
3) 等張性筋収縮時のリズム遅速変化や負荷量の増減によってHFBの成分が±15Hz範囲で変動した。しかしLFBには影響がなかった。
4) 上腕部の筋群 (上腕二頭筋群) のHFBのパワースペクトル密度は大腿部の筋群 (大腿直筋群) よりも大きく, LFBのパワー密度は同じ値を示した。
5) 等尺性筋収縮のHFBと等張性筋収縮の成分との差は約10Hzであった。
6) LFBは緊張性で, TonicなNMUから発射される放電間隔と対応し, 遅い収縮の筋群に関連しているようである。
7) HFBは相動性で, PhasicなNMUから発射される放電間隔と対応し, 速く収縮する筋群に関係しているようである。抄録全体を表示PDF形式でダウンロード (1046K) -
今野 道勝, 千綿 俊機, 安永 誠, 吉水 浩, 増田 卓二, 勝田 茂1976 年 25 巻 1 号 p. 37-44
発行日: 1976/03/01
公開日: 2010/12/10
ジャーナル フリー“Power-Duration Curves” had been measured on three middle aged subjects through-out the performance of heavy constant loaded cycling exercise with different intensities. And the results were compared with the results of previous investigation on young subjects for the purpose to know the properties of the physical work capacity of middle aged man.
The relations between the Total Power output (TP) and its maximal duration (t) is summarized as the following two equations: log TP=a-b·log t, in the case of the t shorter than about 5-6 minutes, and log TP=a′-b′·log t, in the case of the t longer than about 5-6 minutes. The relations between the Anaerobic Power output (AnP) and its maximal duration (t) is also summarized as the two equations: log AnP=c-d·log t, in the case of the t shorter than about 1-4 minutes, and log AnP=c′-d′·log t, in the case of the t longer than about 1-4 minutes. The above equations are applicable to the results of every subjects in each age group, then, the age difference in quality is hardly found. However, the values of the constants a, a′, c and c′ in the above regression equations are respectively lower in the middle aged subjects, the other hand, the age difference is scarcely found in the values of the constants b, b′, d and d. It is also said that the endurance time of the certain Aerobic Power output of the middle aged subjects are shorter than young ones within the experimental region.
It is considered that the one of the reasons, both of the endurance times of the certain Aerobic Power output and Anaerobic Power output are shorter in the middle aged subjects than young ones, is the maximal aerobic power and the maximal anaerobic capacity of the middle aged subjects are lower than young ones.
In this paper, the Aerobic Power is a mean total oxygen intake during exercise, the Anaerobic Power is a oxygen debt per endurance time of exercise. The term of the “Anaerobic” is not most suitable one, however it is used for convenience. The Total Power is defined as the sum of the Aerobic Power plus the Anaerobic Power.抄録全体を表示PDF形式でダウンロード (893K) -
1976 年 25 巻 1 号 p. 45-48
発行日: 1976/03/01
公開日: 2010/09/30
ジャーナル フリーPDF形式でダウンロード (511K)
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