Lee, Jin
(Department of Physical Therapy, Hyun-Myoung Medical Center)
,
Jeong, Kwanghyun
(Department of Physical Therapy, College of Health and Welfare, Sahmyook University)
,
Lee, Hyuna
(Department of Physical Therapy, College of Health and Welfare, Sahmyook University)
,
Shin, Jaeyeon
(Department of Physical Therapy, College of Health and Welfare, Sahmyook University)
,
Choi, Jaelim
(Department of Physical Therapy, College of Health and Welfare, Sahmyook University)
,
Kang, Seungbeom
(Department of Physical Therapy, College of Health and Welfare, Sahmyook University)
,
Lee, Byoung-Hee
(Department of Physical Therapy, College of Health and Welfare, Sahmyook University)
Objective: This study compared the muscle activities of the erector spinae (ES), the external oblique (EO), and the rectus abdominis (RA) on three different surfaces. The purpose of this study was to determine which surface induces the highest muscle activity during the plank exercises. The informat...
Objective: This study compared the muscle activities of the erector spinae (ES), the external oblique (EO), and the rectus abdominis (RA) on three different surfaces. The purpose of this study was to determine which surface induces the highest muscle activity during the plank exercises. The information from this study can be used to recommend plank exercises to athletes and patients with weak core muscles. Design: Cross-sectional study. Methods: The subjects include 20 adult males attending S University in Seoul. Participants completed each plank exercise on three different surfaces. To measure muscle activities, researchers used the values from electromyography. The measurement excluded the initial two and final two seconds and collected information on the RA, EO, and ES in each posture of each subject. Results: The left external oblique showed significant differences between the plank position on stable ground (ST) and the plank position using a suspension device (SL) (p<0.05) and between the plank position on the unstable ground (US) and SL (p<0.05). The right rectus abdominis and left rectus abdominis displayed statistically significant differences between the ST and the US (p<0.05) and between the ST and the SL (p<0.05). The right erector spinae had a statistically significant difference between ST and US (p<0.05). Conclusions: The plank exercise strengthens the core muscles effectively, and muscle activity is related to the posture of the exercise and the location of the muscle. These results suggest that plank exercises improve muscle activities. Additionally, plank exercises can be applied to general medical care.
Objective: This study compared the muscle activities of the erector spinae (ES), the external oblique (EO), and the rectus abdominis (RA) on three different surfaces. The purpose of this study was to determine which surface induces the highest muscle activity during the plank exercises. The information from this study can be used to recommend plank exercises to athletes and patients with weak core muscles. Design: Cross-sectional study. Methods: The subjects include 20 adult males attending S University in Seoul. Participants completed each plank exercise on three different surfaces. To measure muscle activities, researchers used the values from electromyography. The measurement excluded the initial two and final two seconds and collected information on the RA, EO, and ES in each posture of each subject. Results: The left external oblique showed significant differences between the plank position on stable ground (ST) and the plank position using a suspension device (SL) (p<0.05) and between the plank position on the unstable ground (US) and SL (p<0.05). The right rectus abdominis and left rectus abdominis displayed statistically significant differences between the ST and the US (p<0.05) and between the ST and the SL (p<0.05). The right erector spinae had a statistically significant difference between ST and US (p<0.05). Conclusions: The plank exercise strengthens the core muscles effectively, and muscle activity is related to the posture of the exercise and the location of the muscle. These results suggest that plank exercises improve muscle activities. Additionally, plank exercises can be applied to general medical care.
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문제 정의
This study compared the muscle activities of the erector spinae (ES), external oblique (EO), and rectus abdominis (RA) on three different surfaces while subjects performed plank exercises. The purpose of this study is to determine which surface induces the highest muscle activity during the plank exercises. The information from this study can be used to recommend plank exercises to athletes and patients with weak core muscles.
제안 방법
The purpose of this study is to determine which surface induces the highest muscle activity during the plank exercises. The information from this study can be used to recommend plank exercises to athletes and patients with weak core muscles.
The purpose of this study was to compare core muscle activities in plank exercises performed on three different surfaces among adult men. Exercises on an unstable surface intensify the activities of the muscles and the cooperation pattern among the stabilizing muscles [10].
Both forearms maintained contact with the ground while the hands made fists and the elbows maintained a distance of 30 cm apart. The researchers instructed the subjects to protract the scapulas and maintain 90-degree angles at the ankles. The abdomen was contracted using the abdominal drawing- in maneuver method; the heights of the shoulders and hips from the ground were keep at 25 cm.
The present study was approved by Sahmyook University Institutional Review Board and each subject was able to follow instructions and gave informed consent by signing an approved consent form; thus, the rights of human subjects were protected. The selection criteria included individuals who: understood the study, a body mass index between 18.5 and 25 kg/m2, volunteered to join, and had exercised less than three times a week. The exclusion criteria included individuals who had: exercise limitations from a physician, used steroid or protein supplements, drank more than two bottles of alcohol a week, or could not maintain the plank posture.
Few studies have comprehensively examined core muscle activity in the plank posture on stable and unstable surfaces, or while using a suspension device. This study compared the muscle activities of the erector spinae (ES), external oblique (EO), and rectus abdominis (RA) on three different surfaces while subjects performed plank exercises. The purpose of this study is to determine which surface induces the highest muscle activity during the plank exercises.
A break was given for 30 seconds between each set; a three-minute break was given between performing each different plank exercise. To measure muscle activities, researchers used the values from electromyography (TELEMYO 2400T G2Ⓡ; NORAXON, Scottsdale, AZ, USA). The measurement excluded the initial two and final two seconds and collected information on the RA, EO, and ES in each posture of each subject.
대상 데이터
The subjects include 20 adult males attending Sahmyook University in Seoul. The present study was approved by Sahmyook University Institutional Review Board and each subject was able to follow instructions and gave informed consent by signing an approved consent form; thus, the rights of human subjects were protected.
데이터처리
Researchers used Mauchly’s Test of Sphericityto determine if the variances of the differences between all possible pairs of groups were equal. Researchers analyzed the data using repeated measures analysis of variance to evaluate the differences between the groups. The threshold of the statistical significance was 0.
성능/효과
As a result, among all of the muscles measured (RA, EO, and IO), significant changes were observed between the plank exercise on the BOSU ball and the plank exercise on stable ground, between the plank exercise on the gym ball and the plank exercise on stable ground, and between the plank exercise on the gym ball and the plank exercise on the BOSU ball (p<0.05).
In this study, LES showed no significant differences in muscle activity while RES showed significant differences in muscle activity between ST and US and between ST and SL. Tong et al.
In this study, US and SL showed significant muscle activities in the RA, EO, and ES compared to the ST (p<0.05).
참고문헌 (11)
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