|
KMID : 1206220130200010043
|
|
Journal of Korean Academy of Physical Therapy Science
2013 Volume.20 No. 1 p.43 ~ p.49
|
|
|
The Effects of Flexion Angle of Shoulder Joints in Various Postures on Grip Strength
|
|
Lee Sam-Cheol
Kim Bong-Hwan
Jung Jae-Woo
|
|
|
Abstract
|
|
|
Background and purpose : The shoulder joints permit the greatest mobility of any joint area carries out the important function of stabilization for hand use. Research has now shown that grip strength has proven to be a reliable indicator for quality of life at an older age. The purpose of this study was to investigate the effects of testing posture and shoulder position on grip strength for repetitive gripping task.
Methods : Forty(20male, 20female) college adult volunteers with no known shoulder dysfunction participated subject in two testing posture(sitting and standing) and three positions with shoulder flexion: (1) shoulder 0° flexion (2) shoulder 90° flexion (3) shoulder 180° flexion. The paired t-test was used to determine any significant difference in grip strength between the testing posture and shoulder position.
Results : The higher grip strength gained in the sitting with the shoulder 180° flexion and the higher grip strength gained in the standing with the shoulder 180° flexion. The second experiment showed that the grip strength was significant for sitting, standing position of shoulder 0° flexion(p 0.05). Grip strength goes up as increase height and weight.
Conclusion : These findings demonstrate that the theory does not fit with, because of the influence of gravity, a measure from the shoulder joint is the most high, 0°. And sitting posture and stance in the grip of a difference when compared SIT 0° and standing position 0° significant difference in indicated but, 90° and 180° in the sitting position and stance in the grip of the difference was not significant difference. To demonstrate the universality of this study’s results, future studies should have a larger and more subject as well as a more even distribution of male and female subject. Therefore future research is needed to refine the definition and identify optimal methods of measuring this grip strength.
|
|
|
KEYWORD
|
|
|
Grip strength , Flexion angle , Shoulder joints ,
|
|
|
FullTexts / Linksout information
|
|
|
|
|
Listed journal information
|
|
|