Knee Extensor Muscle Strength and Vertical Jumping Performance Characteristics in Pre- and Post-Pubertal Boys

2001 ◽  
Vol 13 (1) ◽  
pp. 60-69 ◽  
Author(s):  
Mati Pääsuke ◽  
Jaan Ereline ◽  
Helena Gapeyeva
Keyword(s):  
Muscle Strength ◽  
Isometric Force ◽  
Knee Extensor ◽  
Peak Torque ◽  
Extensor Muscle ◽  
Performance Characteristics ◽  
Jumping Performance ◽  
Vertical Jumping ◽  
Pubertal Boys ◽  
Knee Extensor Muscle Strength

Knee extensor muscle strength and vertical jumping performance characteristics were compared between 14 pre-pubertal (11-year-old) and post-pubertal (16-year-old) boys. Post-pubertal boys had greater (p < .05) absolute values of maximal isometric force (MF) and rate of force development (RFD), absolute and body mass-related values of isokinetic peak torque of the knee extensor muscles at angular velocities of 60, 180, and 240° · s−1, as well as jumping height in squat, counter-movement, and drop jumps, than pre-pubertal boys. This study indicated an inability to use the positive effect of stretch-shortening cycle to vertical jumping performance in pre- and post-pubertal boys.

scholarly journals Knee Extensor Muscle Strength And The Depressive Status Among Older Japanese Women: A Cross-sectional Study

2021 ◽  
Vol 53 (8S) ◽  
pp. 196-197
Author(s):  
Ohta Takahisa ◽  
Hiroyuki Sasai ◽  
Narumi Kojima ◽  
Yosuke Osuka ◽  
Kiyoji Tanaka ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Knee Extensor ◽  
Cross Sectional Study ◽  
Japanese Women ◽  
Extensor Muscle ◽  
Sectional Study ◽  
Cross Sectional ◽  
Knee Extensor Muscle Strength

scholarly journals Variations in the Knee Extensor Muscle Strength of Patients with Severe Bilateral Knee Osteoarthritis in the 3 Years after Total Knee Arthroplasty

2020 ◽  
Vol 35 (1) ◽  
pp. 57-61
Author(s):  
Yutaro SANADA ◽  
Kazuaki KINOSHITA ◽  
Yuta NAKA ◽  
Wataru ABE ◽  
Kazunari ISHIDA ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Muscle Strength ◽  
Knee Osteoarthritis ◽  
Knee Arthroplasty ◽  
Knee Extensor ◽  
Extensor Muscle ◽  
Bilateral Knee ◽  
Total Knee ◽  
Knee Extensor Muscle Strength

scholarly journals Knee extensor muscle strength as a predictor of peak oxygen uptake in patients with heart disease

2020 ◽  
Vol 32 (4) ◽  
pp. 265-268
Author(s):  
Tsubasa Yokote ◽  
Hidenobu Koga ◽  
Kyohei Eriguchi ◽  
Yoshihiro Imamura
Keyword(s):  
Heart Disease ◽  
Muscle Strength ◽  
Oxygen Uptake ◽  
Knee Extensor ◽  
Peak Oxygen Uptake ◽  
Extensor Muscle ◽  
Knee Extensor Muscle Strength

Abstract 18801: Light-intensity Physical Activity After Discharge Predicts 6-month Postdischarge Adverse Events in Older Japanese Patients With Heart Failure

Circulation ◽  
2015 ◽  
Vol 132 (suppl_3) ◽  
Author(s):  
Naoki Fujimoto ◽  
Kaoru Dohi ◽  
So Miyahara ◽  
Keishi Moriwaki ◽  
Taku Omori ◽  
...  
Keyword(s):  
Physical Activity ◽  
Muscle Strength ◽  
Light Intensity ◽  
Knee Extensor ◽  
Extensor Muscle ◽  
Moderate Intensity ◽  
Sf 36 ◽  
Patients With Heart Failure ◽  
Steps Per Day ◽  
Knee Extensor Muscle Strength

Introduction: Moderate physical activity (PA) is recommended in patients with heart failure (HF). However, patient’ characteristics in those with low PA and the impact of light-intensity PA on postdischarge major adverse cardiovascular events (MACE) remain unclear in older Japanese HF patients. Methods: Thirty seven patients (Stage C/D: 76±5 yrs, 21m) who had been admitted due to HF and 23 Stage A/B patients (73±5 yrs) with risk factors were enrolled. PA was measured using the Omuron HJ350IT accelerometer from the day of discharge for 7 days. Light-intensity PA at an intensity of 1.5-3.0 metabolic equivalents (METs), moderate-intensity PA (≥3METs), and total PA were determined. At discharge, knee-extensor muscle strength, 6-min walking distance (6MWD),SF-36 score, and left ventricular (LV) structure by echocardiography were evaluated. Stage C/D patients were stratified into High-PA and Low-PA according to the median total PA value of 8.4 METs·hour/day. Stage A/B patients underwent these measurements, and values were compared. Factors related to the 6-month postdischarge MACE were assessed. Results: Stage C/D patients were anemic, took fewer steps per day, and had higher brain natriuretic peptide (BNP) than Stage A/B patients. Patients in Low-PA were less likely to engage in household work, and had shorter active time, fewer steps per day, and lower light- and moderate-intensity PA than those in High-PA. No differences were observed in 6MWD (263±110 vs. 303±77 m), knee-extensor muscle strength, BNP (405±346 vs. 267±179 pg/ml), SF-36 physical composite score, or LV ejection fraction between Low-PA and High-PA. Light-intensity and total PA, but not moderate-intensity PA, were associated with the 6-month postdischarge MACE through univariate analyses. Multivariate regression analysis showed that total PA was the independent predictor of the 6-month postdischarge MACE (odds ratio: 0.66) among functional capacity variables including 6MWD and knee-extensor muscle strength. Conclusions: Physical activity, especially at light-intensity, is inversely associated with the 6-month postdischarge MACE in older HF patients. Our results may indicate that postdischarge PA assessed by accelerometer is useful to distinguish those at high risks for MACE.

scholarly journals Knee Extensor Muscle Strength of Unaffected Side in Hemiplegic Patients.

1994 ◽  
Vol 9 (1) ◽  
pp. 23-26
Author(s):  
YASUTOSHI IKUTA ◽  
HIROYASU IWATSUKI ◽  
JUNKO IWATSUKI ◽  
ATSUKO IWATA
Keyword(s):  
Muscle Strength ◽  
Knee Extensor ◽  
Extensor Muscle ◽  
Unaffected Side ◽  
Knee Extensor Muscle Strength

scholarly journals Relative and Absolute Reliability of the Knee Extensor Muscle Strength of Healthy Subjects

2020 ◽  
Vol 35 (6) ◽  
pp. 797-801
Author(s):  
Kohei MIURA ◽  
Yuji FUJINO ◽  
Yosuke TAKAHASHI ◽  
Ayumi TOIDA ◽  
Shigeru MAKITA
Keyword(s):  
Muscle Strength ◽  
Healthy Subjects ◽  
Knee Extensor ◽  
Extensor Muscle ◽  
Knee Extensor Muscle Strength ◽  
Absolute Reliability
Sign in / Sign up

Export Citation Format

Share Document