Biomechanical study on kicking movement in soccer players by motion capture system

J-GLOBAL ID : 202001012478363111J-GLOBAL ID : 202101011515064120J-GLOBAL ID : 201501027844069716J-GLOBAL ID : 2014010795332072711520860078899386240application/pdfdepartmental bulletin pape

Activity of knee extensor muscles evaluated by Electromyography and MC sensor method

J-GLOBAL ID : 201401079533207271J-GLOBAL ID : 202001020973622576J-GLOBAL ID : 202101011515064120J-GLOBAL ID : 201901011536506168J-GLOBAL ID : 201801000910828540J-GLOBAL ID : 201701005445265627In this study, the characteristics of the muscle activity on knee extensor muscles and the interaction under the decrease of knee extension torque caused by a continuous knee extension and flexion task were evaluated by electromyography and MC sensor methods (MC). The subjects were 18 healthy males. The continuous task on 30 times knee extension isokinetic contraction was performed by dynamometer (Biodex). And measurement of maximal torque on isometric contraction was pre and post continuous task. At the same time, the muscle activity and deformation amount at the vastus medialis obliquus (VMO) and vastus lateralis (VL) muscles were measured using the surface electromyography and MC sensor method (TMG. BMC). As a result, the continuous knee extension task reduced knee extension torque by 10％. In addition, the muscle activity at the VMO and VL higher in post than pre during the continuous knee extension task. However, the deformation amount was lower in post than in pre during the high-intensity (over the 30％MVC) torque exertion. Moreover, the significant correlations were observed between the relative values of VMO and VL muscle activity and deformation amount pre and post the continuous knee extension task, respectively. Therefore, although the evaluation methods were different, coordinated muscle activity and deformation amount between VMO and VL were confirmed.22K115821520578603916839936application/pdfdepartmental bulletin pape

English classes through ICT with elementary school kids and the students in a teacher training course related to physical education

J-GLOBAL ID : 2019010090951618581520015653962968320application/pdfdepartmental bulletin pape

A Case Study on Mechanical Power Output and Physiological Intensity during High Intensity Intermittent Exercise by Collegiate Wrestlers

J-GLOBAL ID : 201301090685531402J-GLOBAL ID : 201801009314123820J-GLOBAL ID : 202101004237845144The purpose of this study was to compare the differences in mechanical power and physiological intensity during high intensity intermittent exercise on a bicycle ergometer by wrestlers of different performance levels. Three members of a collegiate wrestling team participated in (1) incremental load test to determine aerobic work capacity (VO_2max), (2) a maximal anaerobic power test and a 90 second Wingate test to determine anaerobic work capacity, and (3) high intensity intermittent exercise (20 sec × 8 sets, 170% VO_2max) on a bicycle ergometer. Bicycle ergometer was used for all the tests. Mechanical power output, oxygen uptake, and heart rate were measured during all tests. Oxygen uptake and heart rate were recorded over time during the recovery period only after the completion of high intensity intermittent exercise. As a result, the ratio of power output of each athlete was calculated. Athlete A was able to perform at least 100% until the third set, B the fourth set, and C the third set. The average power of A (6.3 W/kg) and B (5.7 W/kg) tended to be higher than that of C (4.3 W/kg). Athlete B (9.6 ml/kg/min) had the lowest oxygen uptake at 2 min post-exercise, while A (12.8 ml/kg/min) and C (12.8 ml/kg/min) showed no significant differences. Athletes with superior anaerobic and aerobic work capacity among wrestlers did not exhibit higher mechanical power output during high intensity intermittent exercise, and athletes with superior wrestling athletic performance tended to have smaller repetitions of high intensity intermittent exercise and smaller reduction rates during exercise.1520860078896017792application/pdfdepartmental bulletin pape

MEDIATING BETWEEN POLITICS : AND LIVES BY POETICS

J-GLOBAL ID : 202101017410362523目　次 はじめに 1．近代化の難問──政教分離と国民的絆の問題 2．ルネサンスと文学 3．小学校令へ──特別な地位を占める科目 4．政治と民衆の媒介をめぐって──倫理か、文学か おわりにapplication/pdfdepartmental bulletin pape

Effects of palm cooling with CoolMitt

J-GLOBAL ID : 201901002195328127J-GLOBAL ID : 201901007563059516J-GLOBAL ID : 201801004201806465J-GLOBAL ID : 200901012516528555application/pdfdepartmental bulletin pape

Innovation in Japanese Manufacturing : The Case of KOMATSU

J-GLOBAL : 200901095296182949Table of Contents 1．Introduction 2．Dantotsu Management and Trends in Academic Literature, Methodology 　　2.1 Dantotsu Management of Komatsu 　　2.2 Trends in Academic Literature and Methodology 3．Lineage of Komatsu's Corporate Management and ICT Strategy 　　3.1 Komatsu's Corporate Management and ICT Strategy 　　3.2 Genealogy of Komatsu's ICT Strategy 4．Smart Construction Case of Komatsu 　　4.1 Smart Construction Case 　　4.2 Discussion of Learnings from Smart Construction 5．Conclusion1520860642140731648application/pdfdepartmental bulletin pape

Differences in body composition assessments measured by air displacement plethysmography and magnetic resonance imaging in adult females

J-GLOBAL ID : 202201012804701108J-GLOBAL ID : 202101004237845144Magnetic resonance imaging （MRI） and air displacement plethysmography （ADP） are widely used methods for reliable body composition analysis （BCA）. This study aimed to compare the BCA assessments obtained between MRI and ADP methods in 14 adult females. BCA measurements such as whole-body mass, volume, density, fat mass and %fat mass were analyzed by both MRI and ADP methods. 　The masses, volumes and body densities obtained MRI and ADP method were both absolutely and relatively equaled. However, the %fat masses obtained MRI and ADP method were highly correlated （r＝0.950, p＜0.001）, while significant absolute differences in %fat mass were found between the two methods （p＜0.001）. 　It was suggested that the MRI method equivalently evaluated in mass, volume and body density compared with ADP method. Also, MRI method can be relatively evaluated the fat mass and %fat mass but it overestimated absolute values.1520860078898552704application/pdfdepartmental bulletin pape

A Study of the Actual State of Women's Baseball at Girls' High schools in Tochigi Prefecture

J-GLOBAL ID : 2021010141640293651520578603923171456application/pdfdepartmental bulletin pape

Report on the Implementation of Rhythmic Swimming and its Effects on children

J-GLOBAL ID : 202001004156798454Swimming is an area of physical activity required in elementary and secondary schools. However, in the special environment of water, which is different from land, many children have breathing restrictions, poor visibility, aversion to splashing, and anxiety about an unfixed support point. This study investigated the effects of rhythm swimming which is known to be effective in broadening the enjoyment of swimming, to see what effect it would have on the children. 94.34％ of the respondents indicated that rhythm swimming was more enjoyable than regular swimming lessons. 86.79％ said they liked swimming more than before, and the responses showed the positive effects of rhythm swimming. Rhythm swimming is a new aspect of swimming, and its effective use has the potential to dispel the fear of swimming.1520297128945129856application/pdfdepartmental bulletin pape