Effect of eccentric Heel-Drop exercise on pennation angle and thickness of the calf muscle in young peoples Kim Eun-Jeong1, Park Soo-Young1, Hong Ji-Heon2, Yu Jae-Ho2, Kim Jin-Seop2, Lee Dong-Yeop2,* 1Dept. of Physical Therapy, SunMoon University, Republic of Korea 2Professor, Dept. of Physical Therapy, SunMoon University, Republic of Korea *Corresponding Author: Dong-Yeop Lee Associate Professor, Department of Physical Therapy, Sunmoon University, Korea Email: kan717@hanmail.net
Online published on 16 October, 2018. Abstract Background/Objectives The aim of this study is to determine the effect of calf muscle thickness and pennation angle on the change of intervention during eccentric heel drop exercise.. Method/Statistical Analysis 30 people who have no diseases related to the muscles and musculoskeletal system in joints such as ankles and knees within six months were selected as subjects. The experiment was carried out by intervention of a 5 kg weight bearing at 120 and 60bpm. It measured the calf muscle thickness and pennation angle before and after exercise and analyzed it by One-Way ANOVA.. Findings In previous studies, it was compared before and after eccentric heel drop exercise or the foot bending angle was set differently. However, it was not enough to determine changes in speed and body weight. The purpose of this study is to provide the most effective way for measuring calf muscle thickness and pennation angle by use of a variety of intervention on eccentric heel drop exercise through ultrasound imaging. The pennation angle result demonstrates that during the heel drop exercise, the average values for each group at 60bpm, 5kg of weight bearing, and 120bpm are as follows: 4.42 ± 1.18, 2.48 ± 1.26 and 2.75 ± 1.12, respectively. The result shows that the average value was highest when performed at 60 bpm and statistically significant(p<.05).. Improvements/Applications The result of this study suggests that an effective way of intervention for eccentric heel drop exercise may be applied selectively depending on various interventions. Top Keywords Eccentric heel drop exercise, Calf muscle, Pennation angle, Thickness, Ultrasound imaging. Top |