• 한국산학기술학회논문지
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• 제16권10호
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• pp.6543-6550
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• 2015

본 연구의 목적은 플렉시-바 운동이 과체중 및 비만 여대생의 신체조성과 몸통근력 변화에 미치는 효과를 알아보고자 실시되었다. 연구대상은 과체중 및 비만인 여대생으로 실험군 15명, 대조군 15명으로 나누어 실험군에 플렉시-바 운동을 5주간 주3회 일일 30분 실시하여 연구대상자들의 운동 전 후와 실험군과 대조군 사이의 신체조성과 몸통근력의 차이를 분석하였다. 본 연구 결과, 실험군의 체지방량, 체지방률, 신체근육량, 양쪽 팔 근육량, 몸통근육량, 기초대사량이 통계적으로 유의하게 개선되었다(p<.05). 몸통근력의 변화에서도 실험군에서 유의하게 몸통근력이 증가되었다(p<.01). 본 연구를 통해 플렉시-바 운동이 과체중 및 비만여대생의 신체조성과 몸통근력 개선에 효과적인 운동프로그램이 될 수 있음을 확인하였다.

• 국제물리치료학회지
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• 제4권1호
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• pp.510-515
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• 2013

The purpose of this study was to examine the influences of chronic shoulder pain on the muscle tone in trunk muscles. The study's subjects were 40 men and women in their 30 to 50s, which were divided into two groups. A chronic shoulder pain group consisted of 20 subjects who had been diagnosed with chronic shoulder pain by doctors, and a painless group consisted of 20 subjects who had experienced no such pain. An analysis was performed using electromyography on the muscle tone in the rectus abdominalis, external oblique, internal oblique, and erector spinae muscles under the same conditions between the two groups. The analysis results were as follows. The chronic shoulder pain group exhibited an overall high level of trunk muscle tone than the painless group, along with a statistically significant difference in the rectus abdominalis(p<.05). Moreover, the chronic shoulder pain group showed differences in the trunk muscle tone depending on the affected side. The chronic left shoulder pain group yielded higher levels of muscle tone in the right-side trunk muscles. In particular, the group revealed statistically significant differences in the rectus abdominalis and internal oblique(p<.05). The chronic right shoulder pain group exhibited higher levels of muscle tone in the left-side trunk muscles with a statistically significant difference in the internal oblique(p<.05). The above results suggested that chronic shoulder pain influences increases in the muscle tone in the trunk muscles on the opposite side to the affected shoulder.

• 디지털융복합연구
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• 제15권2호
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• pp.411-419
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• 2017

본 연구는 어깨뼈 설정 운동과 몸통 교정 테이핑 융합이 뇌졸중 환자의 몸통 근활성도, 몸통 균형 및 팔 기능개선에 효과적인지 알아보고자 하였다. 뇌졸중환자 20명을 연구군(테이핑+어깨뼈 설정) 10명과 대조군(어깨뼈 설정) 10명으로 나눈 뒤 4주간 주당 30분의 중재를 실시하였다. 연구군은 몸통 교정 테이핑을 적용받았고 동시에 어깨뼈 설정운동을 받았다. 측정은 몸통 근활성도, 몸통손상척도(Korean version Trunk Impairment Scale, K-TIS), 팔 기능검사 (Manual Function Test of upper extremity, MFT)를 실시하였다. 중재 전 후 연구군에서 몸통 근활성도, K-TIS, MFT 점수에 유의한 증가를 보였고(P<.05), 대조군 보다 K-TIS와 MFT 점수에 유의한 개선을 보였다(P<.05). 본 연구를 통해 어깨뼈 설정 단일 운동 보다 몸통 교정테이핑 융합 적용이 뇌졸중 환자의 몸통 근활성도, 몸통 균형 및 팔 기능개선에 더욱 효과적인 것을 알 수 있었다. 향후 연구에서 개별 근수축 개시시간(onset time)에 관한 변화를 확인한다면 더욱 임상적 의의가 있겠다.

• 국제물리치료학회지
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• 제6권1호
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• pp.781-787
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• 2015

The purpose of this study is to verify a correlation between flexi-bar exercise and improvement of trunk strength and body composition in juvenile soccer players. The subjects were 11 teenager juvenile soccer players who conducted flexi-bar exercise half an hour daily three times a week for eight weeks. They were tested for trunk muscles strength, body composition and correlation. The result showed that trunk muscles strength improved significantly(p<.01) and weight, Rt. arm muscle mass, Rt. leg muscle mass, and Lt. leg muscle mass(p<.05), Lt. arm muscle mass, trunk muscle mass, and body muscle mass(p<.01) improved significantly as well while Lt. arm fat mass, Rt. leg fat mass, and Lt. leg fat mass decreased significantly(p<.05). In the correlation analysis, the more trunk muscle mass and trunk muscles strength increased, the more muscle mass of body regions increased, which was a positive correlation whereas fat mass of body regions decreased, which was a negative correlation. It was verified that there was a correlation between flexi-bar exercise and improvement of trunk muscles strength and body composition for juvenile soccer players.

• 대한인간공학회지
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• 제27권3호
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• pp.15-22
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• 2008

The purpose of this study was to define the effects of noise and background music on the trunk muscle fatigue during dynamic lifting and lowering tasks. Six healthy male subjects with no prior history of low back disorders participated in this study. The participants were exposed to two levels of background noise such as 40dB noise and 90dB noise and three levels of background music such as no music, slow music, and fast music. Six different combinations of background noise and background music were played while the participants were performing the lifting task at 15% level of Maximum Voluntary Contraction. Electromyography signals from six muscles were collected and fatigue levels were analyzed quantitatively. In results, the 90dB noise increased trunk muscle fatigue and slowed down the recovery. The trunk muscle fatigue was the lowest when the fast music was played for as background. After recovery, the 90dB noise increased trunk muscle fatigue. The trunk muscle fatigue was the lowest when the slow music was played for as background. The results can be useful to manage the cumulative fatigue of trunk muscles due to background noise and music during repetitive lifting and lowering tasks in industry.

• 대한물리의학회지
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• 제11권2호
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• pp.25-31
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• 2016

PURPOSE: The purpose of this study was to compare the trunk muscle activity according to the direction of upper extremity lifting using elastic band. METHODS: Thirty three healthy individuals participated in this study. Each subject performed upper extremity lifting using elastic band on two different directions (straight and diagonal). And then we compared the muscle activity of respective trunk muscles of both directions. In order to examine the muscle activity of trunk muscle, we used the electromyogram to measure peak and mean torque in shoulder 90 degree flexion with sitting position. Electromyographic activities were recorded from the external oblique, internal oblique, rectus abdominis, and erector spine muscles during upper extremity lifting. RESULTS: As a result, first, there was significant difference between two directions. The muscle activity of ipsilateral external oblique and contralateral internal oblique is significantly increased in both straight and diagonal directions (p<0.05). Second, the muscle activities of external oblique and internal oblique of both side showed significant difference in diagonal direction (p<0.05). Third, the muscle activity of erector spine of both side showed significant difference in straight direction (p<0.05). CONCLUSION: Through this study, it is important that implement diagonal direction exercise at sitting positions to help increasing muscle activity of ipsilateral external oblique and contralateral internal oblique on patients when activating the trunk muscle or stabilizing the trunk.

• Physical Therapy Rehabilitation Science
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• 제10권2호
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• pp.156-160
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• 2021

Objective: Low back pain easily becomes chronic and has a high recurrence rate. Therefore, it is most important to prevent chronicity and reduce the risk of recurrence in the early stages of back pain or at the stage with mild pain. Therefore, this study was conducted to compare hip joint muscle strength, trunk muscle endurance, and pelvic alignment between subjects with mild low back pain and subjects without back pain. Design: Crossed-sectional study Methods: The study was conducted by recruiting 30 students in their twenties who are enrolled in K University in Gyeongsangnam-do, and classifying them into 15 patients with mild back pain and 15 patients with normal. The subjects who participated in the experiment were measured for hip flexor and extensor muscle strength, trunk flexion and extension muscle endurance, and pelvic alignment. To measure hip joint muscle strength, biodex was used, and muscle endurance of the trunk was recorded at the end range of the trunk flexion and extension. And pelvic alignment was measured using Formetric 4D. Results: There were no significant differences in hip joint muscle strength, pelvic alignment, and trunk extension muscle endurance. The retention time was found to be significantly shorter in the mild low back pain group than in the normal group for trunk flexion muscle endurance. Conclusions: In the early stages of back pain or in the mild pain stage, training to increase muscle endurance of the flexor muscles may be helpful.

• 대한물리의학회지
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• 제6권1호
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• pp.93-101
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• 2011

Purpose : The purpose of this study was to investigate the effects of maximum muscle activation of lower extremity of facility dwelled elderly Hansen's disease after isometric trunk exercise for 12weeks. Methods:18 elderly Hansen's disease who isometric trunk exercise for 12weeks were recruited for this study. They were instructed to perform maximum muscle activation of lower extremity after exercise. and the subjects were divided into normal sensory group, sensory loss in left foot group, sensory loss in right foot group and sensory loss in both feet group, according to the sensory condition ability on their soles. Results : After exercise, Hamstring muscle increased significantly (p<.05), and activation of the rectus femoris muscle decreased with a significance (p<05). In terms of Post-hoc test for examining the difference in MVIC according to sensory condition, there was significant difference in the normal sensory group, sensory loss in right and left foot group of left hamstring muscle before the exercise(p=.01) and the normal sensory group, sensory loss in both feet group of right hamstring muscle before the exercise(p=.04). Conclusion : These results indicate that the maximum muscle activation was changed after isometric trunk exercise. it could be improved maximum muscle activation of lower extremity muscle after the exercise although there was sensory loss.

• PNF and Movement
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• 제15권3호
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• pp.291-302
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• 2017

Purpose: The purpose of this study was to describe the effects of neck and trunk stabilization exercise on the onset time of trunk muscle contraction in the elderly. Methods: Elderly subjects were divided into 2 groups: a neck and trunk stabilization exercise group (NTSG) and a control group (CG). The NTSG performed both neck and trunk stabilization exercises and the CG performed gait training on a treadmill, at 30 min per session, 3 times per week, over 8 weeks. Surface electromyography was employed to measure the onset times of trunk muscle contractions in the right anterior deltoid, rectus abdominis, external oblique abdominis, internal oblique abdominis, and erector spinae muscles. Results: The NTSG subjects showed earlier and statistically significant onset of contraction in trunk muscles as compared to the CG. Conclusion: The combination of neck and trunk stabilization exercises may more effectively improve the onset of muscle contractions in the elderly than other types of exercise. The present study's findings may be used as basic data for the development of exercise programs suitable to the elderly, specifically for the design of home exercise programs.

• 한국전문물리치료학회지
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• 제24권3호
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• pp.10-20
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• 2017

Background: Patients with chronic stroke often shows decreased trunk muscle activity and trunk performance. To resolve these problems, many trunk stabilizing techniques including the abdominal drawing-in maneuver (ADIM) and the diaphragmatic breathing maneuver (DBM) are used to improve trunk muscle strength. Objects: To compare the effects of the ADIM and the DBM on abdominal muscle thickness, trunk control, and balance in patients with chronic stroke. Methods: This was a randomized controlled trial. Nineteen patients were randomly allocated to the ADIM ($n_1=10$) and DBM ($n_2=9$) groups. The ADIM and DBM techniques were performed three times per week for 4 weeks. The thicknesses of the transversus abdominis (TrA), internal oblique muscle, and external oblique muscles on the paretic and non-paretic sides, Trunk Impairment Scale (TIS) score, and Berg Balance Scale (BBS) score were used to assess changes in motor development after 4 weeks of training. Results: After the training periods, the TrA thickness on the paretic side, TIS score, and BBS score improved significantly in both groups compared to baseline (p<.05). TIS score was significantly greater in the DBM group than in the ADIM group (p<.05). Conclusion: This study demonstrated that ADIM and DBM are beneficial for improving TrA muscle thickness in the paretic side, trunk control, and balance ability. Intergroup comparison revealed that TIS score was significantly improved in the DBM group versus the ADIM group. Thus, DBM may be an effective treatment for low trunk muscle activity and performance in patients with chronic stroke.