scholarly journals Regional difference in the EMG-force relationship of the hamstring muscles during knee flexion

2021 ◽  
Vol 10 (5) ◽  
pp. 233-241
Author(s):  
Raki Kawama ◽  
Hirohiko Maemura ◽  
Satoru Tanigawa
Keyword(s):  
Knee Flexion ◽  
Regional Difference ◽  
Hamstring Muscles ◽  
Relationship Of ◽  
Force Relationship

EMG-angle relationship of the hamstring muscles during maximum knee flexion

2002 ◽  
Vol 12 (5) ◽  
pp. 399-406 ◽  
Author(s):  
Hideaki Onishi ◽  
Ryo Yagi ◽  
Mineo Oyama ◽  
Kiyokazu Akasaka ◽  
Kouji Ihashi ◽  
...  
Keyword(s):  
Knee Flexion ◽  
Hamstring Muscles ◽  
Relationship Of

Effects of human stature and muscle strength on the standing strategies: A computational biomechanical study

2020 ◽  
Vol 234 (7) ◽  
pp. 674-685
Author(s):  
Mohammed N Ashtiani ◽  
Mahmood-Reza Azghani ◽  
Mohamad Parnianpour ◽  
Kinda Khalaf
Keyword(s):  
Muscle Strength ◽  
Knee Flexion ◽  
Inverse Dynamics ◽  
Biomechanical Model ◽  
Biomechanical Study ◽  
The Body ◽  
Whole Body ◽  
Tall Stature ◽  
Personal Factors ◽  
Hamstring Muscles

It has been hypothesized that the muscular efforts exerted during standing may be altered by changes in personal factors, such as the body stature and muscular strength. The goal of this work was to assess the contribution of leg muscles using a biomechanical model in different physical conditions and various initial postures. An optimized inverse dynamics model was employed to find the maximum muscular effort in 23,040 postures. The simulation results showed that mid-range knee flexion could help the healthy and strong individuals maintain balance, but those with weaker muscle strength required more knee flexion. Individuals of weak muscular constitution as well as those with tall stature are at the highest risk of imbalance/falling. The number of imbalanced postures due to deficits in the calf and hamstring muscles was reduced by 7.5 times by strengthening the whole body musculature. The calf and the hamstring muscles play a key role in balance regardless of stature.

The relationship of the infrapatellar fat pad elasticity and knee flexion range

Physiotherapy ◽  
2015 ◽  
Vol 101 ◽  
pp. e1676
Author(s):  
M. Yamamoto ◽  
K. Mizushima ◽  
Y. Kusumi ◽  
C. Mizuike ◽  
Y. Ishihara ◽  
...  
Keyword(s):  
Knee Flexion ◽  
Infrapatellar Fat Pad ◽  
Fat Pad ◽  
Relationship Of ◽  
The Relationship

Electromyography Activity of the Hamstring Muscles during Knee Flexion

2004 ◽  
Vol 36 (Supplement) ◽  
pp. S342???S343
Author(s):  
Akie Nishino ◽  
Yukiko Makihara ◽  
Fuminari Kaneko ◽  
Toru Fukubayashi
Keyword(s):  
Knee Flexion ◽  
Hamstring Muscles

A Kinematic Profile of Skills in Professional Basketball Players

1994 ◽  
Vol 10 (3) ◽  
pp. 205-221 ◽  
Author(s):  
Irene S. McClay ◽  
John R. Robinson ◽  
Thomas P. Andriacchi ◽  
Edward C. Frederick ◽  
Ted Gross ◽  
...  
Keyword(s):  
Lower Extremity ◽  
Knee Flexion ◽  
Structural Parameters ◽  
Overuse Injuries ◽  
Ankle Sprains ◽  
Basketball Players ◽  
Professional Basketball ◽  
Relationship Of ◽  
The Relationship ◽  
Insight Into

Overuse injuries are common in basketball. To gain insight into their etiology and relationship to mechanics, researchers and clinicians need an understanding of the normal biomechanics of the sport. This study was undertaken with this goal in mind. Lower extremity joint kinematics and structural parameters were collected from 24 players from five professional basketball teams as they performed maneuvers typical of their sport. The results indicated that certain common moves such as the layup landing resulted in knee flexion velocities almost double those seen during the landing phase of running. Lateral movements such as cutting and shuffling placed the foot in extreme positions of supination. Both of these findings have implications for injuries common to basketball such as patellar tendinitis and ankle sprains. It is hoped that this information will initiate a database for normal lower extremity kinematics during basketball and lead to a greater understanding of the relationship of lower extremity movement patterns and injury.

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