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Volume 17 (1972)
- Issue 6 Pages 349-
- Issue 5 Pages 269-
- Issue 4 Pages 171-
- Issue 3 Pages 113-
- Issue 2 Pages 61-
- Issue 1 Pages 1-
Volume 17, Issue 5
Displaying 1-15 of 15 articles from this issue
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Article type: Cover
1973 Volume 17 Issue 5 Pages Cover17-
Published: February 25, 1973
Released on J-STAGE: September 27, 2017
JOURNAL FREE ACCESSDownload PDF (35K) -
Article type: Cover
1973 Volume 17 Issue 5 Pages Cover18-
Published: February 25, 1973
Released on J-STAGE: September 27, 2017
JOURNAL FREE ACCESSDownload PDF (35K) -
Yutaka Murase, Kando Kobayashi, Mitsumasa MiyashitaArticle type: Article
1973 Volume 17 Issue 5 Pages 269-275
Published: February 25, 1973
Released on J-STAGE: September 27, 2017
JOURNAL FREE ACCESSMetabolic responses during submaximum and maximum treadmill running were measured for seven excellent middle-long distance runners, aged 14 to 15 years. Oxygen intake, heart rates and respiratory rates were recorded during exercise and recovery phase. The maximum oxygen intake was measured by the speed progressive treadmill running test (8.6%slope). In the case of submaximum test, the subjects ran on the horizontal treadmill at a constant speed of 300m/min for 6'40". This speed was determined with their best records of 2000m running. The results obtained in this study were as follows: 1. The mean value of the maximum oxygen intake of seven subjects was 3.29l/min(2.49-3.631/min) and the mean value of the maximum oxygen intake per body weight was 60.8 ml/kg/min (57.2-69.0 ml/kg-min). This value is 30% more than that of Japanese ordinary adolescents of the same age, and it corresponds to 72% of Japanese top long-distance runners. 2. The mean value of the maximum ventilation was 111.0l/min (87.8-119.9l/min). When compared with college long-distance runners, these subjects demonstrated large ventilation relating to their maximum oxygen intake. 3. The mean values of oxygen pulse was 16.6ml/beat (12.8-17.9ml/beat) and tidal volume was 1.8l/freq. (1.4-2.2l/freq.) when maximum oxygen intake was obtained. 4. During 2000m treadmill running, oxygen was continuously consumed more than 80% of their maximum for the last four minutes. 5. The oxygen debt of the three subjects for the exhaustive exercise ware 7.04 l, 5.68l, and 4.65l, respectively.View full abstractDownload PDF (629K) -
Shiro Mizutani, Hiroshi Okuda, Hirohisa WakitaArticle type: Article
1973 Volume 17 Issue 5 Pages 277-285
Published: February 25, 1973
Released on J-STAGE: September 27, 2017
JOURNAL FREE ACCESSThe difference in force exerted by the same muscles under the different conditions has been studied by many investigators. According to those reports, the maximal eccentric force was more than the isometric force. The present study was undertaken to investigate the strength of flexor muscles of the forearm exerted under isometric and eccentric conditions, and to compare the isometric strength and eccentric strength in relation to age cross-sectionally. 2,221 healthy boys and girls, aged from 4 to 20 years, participated in the measurements. The subjects were asked to exert his maximal strength at the right angle of the elbow joint in sitting position. The subject grasped the belt which was connected through the metal cord to the dynamometer. The dynamometer was constructed of semiconductive strain gauge. When the eccentric strength was measured, the dynamometer was towed until the subject could not hold his elbow joint at the right angle. When the isometric strength was measured, the dynamometer was fastened to the wall. The results obtained are as follows; (1) Up to ten years of age, there is no difference in muscle strength between boys and girls, and thereafter muscle strength increases much faster in boys than in girls. (2) Eccentric strength is always larger than isometric strength. But the ratio of eccentric strength to isometric strength decreases as the age grows from 4 to 11 years of age, and thereafter it becomes an approximately constant value (110% for boys and 120% for girls).View full abstractDownload PDF (737K) -
Y. Tamura, Y. Matsuura, Y. Ohyama, T. Yagi, E. Nakamura, F. Yoshioka, ...Article type: Article
1973 Volume 17 Issue 5 Pages 287-296
Published: February 25, 1973
Released on J-STAGE: September 27, 2017
JOURNAL FREE ACCESSIn the preceding paper, Research Journal of Physical Education 16-5, physical growth of rural school pupils was studied in the two dimensional component space. In this paper, the physical and motor development of elementary school children was investigated in the factor space, taking account of the differences in their residencial district and age (grade). The measures were divided into three categories; physique, organic function, and motor ability. The correlation matrix was computed with the pooled data of all grades in rural and urban schools in each variable category for each sex. The principal factor solution was applied to each correlation matrix, and the two factors corresponding to the largest and the second large eigenvalue were picked out and rotated in order to be interpreted. The factor space was constructed with these orthogonal factor axes. Then, the centroids and variance covariance matrices of grade-district groups were computed, and the 95% probability ellipses were computed and drawn in this factor space for each grade-district group. Actually, the motor ability can not be observed directly. Only one or a few test items were very often used to measure a certain sub-area of motor ability. As far as the motor ability is measured with performance test, it is more reasonable to think that several sorts of sub-area of motor ability contribute to such motor performance. Therefore, in order to measure a certain sub-area of motor ability, several test items which are validated in some way should be administered and the test result should be integrated to estimate such motor ability in some way. This seems to secure the greater degree of validity to measure the ability. This hypothesis led to the factor as the measure of sub-area of motor ability. Under this working hypothesis, the growth and development of physique, organic function and motor ability were investigated in the factor space as the ability space but not in the variable space.View full abstractDownload PDF (954K) -
Yoshiyuki MatsuuraArticle type: Article
1973 Volume 17 Issue 5 Pages 297-307
Published: February 25, 1973
Released on J-STAGE: September 27, 2017
JOURNAL FREE ACCESSVery few factorial studies have been made so far on motor ability from the hierarchical structure view point. Matsuura factored the motor ability applying the Schmid and Leiman method and produced it's hierarchical factor structure in 1969. This preceding study analyzed the correlations between the produced factors, so the factoring was repeated until only one factor was extracted or the correlations between the extracted factors were unity. However, in this paper, the correlation matrix was factored once to extract the factors to be able to explain more than 80 percent of total variance and the orthogonal rotation of the factor axis was repeated as the number of factors was incremented with one at each repetition of rotation. At each rotation level, the rotated factors were interpreted. Then, comparing the preceding results and the results of each rotation level, the differentiation and compounding of sub-motor ability elements were investigated. From these investigations on the processes of differentiation and compounding, the tree diagram was drawn. This diagram shows the more complex hierarchical structure of motor ability than the one that was concluded in the 1969 study. Particularly, the sub-areas of motor ability, such as running, jumping and muscular endurance, seemed to be extracted through the more complex processes than other sub-areas of motor ability. Even if taking the hierarchical stand point, the motor ability could not be differentiated directly to the simpler elements, but the differentiating and also compounding processes were recognized. Each level of tree diagram means the degree of complexity of motor ability. The lower the level is, the more complex the ability is, just as the results in the preceding study of 1969.View full abstractDownload PDF (1242K) -
Eitaro Nakamura, Yoshiyuki MatsuuraArticle type: Article
1973 Volume 17 Issue 5 Pages 309-318
Published: February 25, 1973
Released on J-STAGE: September 27, 2017
JOURNAL FREE ACCESSThe purpose of this study is to investigate the characteristics of physical fitness and motor ability of various athletes. Sixteen test items, which were selected out of the areas of physique, physical fitness and motor ability, were administered to 394 team men and 698 non-team men of ten public senior high schools. For analyzing the results, principal factor analysis was applied to the correlation matrix which were calculated with these variables, and then six factors were extracted. In order to estimate these factors, Harman's Short Method was applied. And their means and standard deviations were calculated for each athletic team. The means of each team were evaluated with the eleven grade scales, which were based on the grand mean and pooled standard deviations. And the profiles were drawn for each team so as to get evaluation of physical fitness and motor ability. The results were as follows ; 1. Track and field and basketball teams showed the better shape of balance on motor ability, and also better at motor ability itself. 2. Swimming, soccer and tennis teams showed the good shape of balance on motor ability, but a little inferior to the preceding two teams in motor ability. 3. Judo and gymnastics showed the poor shape of balance in motor ability. Thus, it could be concluded that track and field and basketball teams were excellent at motor ability in general, and swimming, soccer and tennis teams, average, and judo and gymnastics teams poor, as long as motor ability were compared among the athletic teams.View full abstractDownload PDF (879K) -
Article type: Appendix
1973 Volume 17 Issue 5 Pages 319-321
Published: February 25, 1973
Released on J-STAGE: September 27, 2017
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Article type: Appendix
1973 Volume 17 Issue 5 Pages 322-335
Published: February 25, 1973
Released on J-STAGE: September 27, 2017
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Article type: Appendix
1973 Volume 17 Issue 5 Pages 336-344
Published: February 25, 1973
Released on J-STAGE: September 27, 2017
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Article type: Appendix
1973 Volume 17 Issue 5 Pages 345-
Published: February 25, 1973
Released on J-STAGE: September 27, 2017
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Article type: Appendix
1973 Volume 17 Issue 5 Pages 346-348
Published: February 25, 1973
Released on J-STAGE: September 27, 2017
JOURNAL FREE ACCESSDownload PDF (157K) -
Article type: Appendix
1973 Volume 17 Issue 5 Pages App3-
Published: February 25, 1973
Released on J-STAGE: September 27, 2017
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Article type: Cover
1973 Volume 17 Issue 5 Pages Cover19-
Published: February 25, 1973
Released on J-STAGE: September 27, 2017
JOURNAL FREE ACCESSDownload PDF (26K) -
Article type: Cover
1973 Volume 17 Issue 5 Pages Cover20-
Published: February 25, 1973
Released on J-STAGE: September 27, 2017
JOURNAL FREE ACCESSDownload PDF (26K)
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