5 research outputs found

    HEALTH ASPECTS OF KARATE AS PHYSICAL EDUCATION AND EXTRACURRICULAR ACTIVITY

    Get PDF
    The present study examined energy expenditure, metabolic equivalent (MET) intensities of karate exercises for health promotion, and bone properties of karate practitioners to examine the health aspects of karate as physical education and an extracurricular activity. The mean energy expenditure following a 70-minute karate practice was 563 kcal for men and 268 kcal for women. The calculated mean MET intensities resulting from the 70-minute karate practice were 7.9 METs for men and 5.2 METs for women. The mean MET intensities of all exercises for men and women were above 3 METs which is defined as “active physical activity” in the “Physical Activity Reference for Health Promotion 2013” in Japan. Practicing karate, especially sparring techniques, may help to enhance bone mineral density. It appears that longer duration, higher frequency, and earlier start of physical training positively influenced skeletal status.  Article visualizations

    The characteristics of fastball for different pitching form in baseball pitchers

    Get PDF
    J-GLOBAL ID : 202101011515064120J-GLOBAL ID : 2014010795332072711520297128944237952application/pdfdepartmental bulletin pape

    Comparison of ground reaction force between counter movement jump and depth jump

    Get PDF
    J-GLOBAL ID : 202001020973622576J-GLOBAL ID : 201401079533207271J-GLOBAL ID : 202101011515064120J-GLOBAL ID : 2017010054452656271520578603921103232application/pdfdepartmental bulletin pape

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

    Get PDF
    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

    Get PDF
    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
    corecore