TY  - JOUR
AU  - Akima, Hiroshi
A2  - Akima, Hiroshi
A2  - Kuno, Shin-ya
A2  - Watanabe, Noboru
A2  - Nakajima, Hidehiko
A2  - Itai, Yuji
A2  - Katsuta, Shigeru
DB  - BISp
DP  - BISp
KW  - Ausdauertraining
KW  - Belastung, submaximale
KW  - Muskelhypertrophie
KW  - Muskelkraft
KW  - Muskelkraft, isokinetische
KW  - Muskelmorphologie
KW  - Muskelquerschnitt
KW  - Oberschenkelmuskulatur
KW  - Skelettmuskulatur
KW  - Sportmedizin
KW  - Trainingswirkung
KW  - Trainingswissenschaft
LA  - jpn
TI  - Effect of moderate endurance training (60% VO2max) on morphological characteristics and muscle strength in human thigh muscles
TT  - Auswirkungen von maessig intensivem Ausdauertraining (60% VO2max) auf morphologische Merkmale und Muskelkraft der menschlichen Oberschenkelmuskulatur
PY  - 1995
N2  - In this study, the effect of moderate endurance training on muscle morphological properties of human thigh muscles and isokinetic strength was examined. Five sedentary females carried out a training program of 30 min/day, 3 times a week for a ten-week period. The load requirement was set to 60% of maximal aerobic capacity (VO2max) of the subjects. In the determination of muscle cross-sectional areas (CSAs) by MRI, longitudinal sections were first imaged, and ten axial images along the length of femur were taken before and after the endurance training. Muscle CSA and muscle volume of knee extensors (KE), flexors (KF), and adductors (AD) were calculated, using the ten axial images. VO2max was significantly increased after endurance training (14.6%, p<0.01). Muscle CSA in KE was significantly increased at the ten levels of femur length. There were also significant increases at seven levels of femur length after endurance training in KF (p<0.05, and 0.01). Percentage increase of muscle CSA in KE and KF were 10.9 to 16.5% and 7.7 to 15.8%, respectively. Although the muscle volume of KE, KF, and AD was significantly increased, no change in fat volume was observed after endurance training. Isokinetic knee extension and flexion peak torque and peak torque per unit of muscle CSA at three angular velocities (30, 180, and 300 deg/sec) didn't show significant changes. These results suggest that muscle hypertrophy induced by moderate endurance training has no effect on muscle strength.   Verf.-Referat
SP  - S. 365-374
SN  - 0039-906X
JO  - Japanese journal of physical fitness and sports medicine
IS  - 3
VL  - 44
M3  - Gedruckte Ressource
ID  - PU199605107636
ER  -