• 대한물리의학회지
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• 제10권2호
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• pp.1-7
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• 2015

PURPOSE: The aims of this study were to assess the intra-tester and inter-tester reliability and validity of hip range of motion using a smart phone in hip operative patients. METHODS: Twenty-five patients (eight total hip arthroplasty and seventeen femur neck fracture) participated in this study. The range of motions in active and passive hip flexion, abduction and external rotation were measured with a goniometer and smart phone over two times by two observers. The intra-tester and inter-tester reliability were evaluated using the intraclass correlation coefficient (ICC2,1). The validity was measured by Pearson's correlation coefficient RESULTS: The intra-observer reliability was good in all measured items (ICC>0.78). The inter-observer reliability was high with ICC (>0.90). All correlation coefficients of smart phone and goniometer was greater than 0.85 and showed a significant positive correlation (p<0.01). CONCLUSION: The range of motion measurement with a smart phone showed acceptable reliability. Therefore, it could be convenient and have economical benefits to measure the range of motion of the hip joint using a smart phone.

• 대한물리의학회지
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• 제12권1호
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• pp.43-49
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• 2017

PURPOSE: This study investigated the relationship among hip adduction angle, tibial rotation, and ITB length during an Ober test to determine the most appropriate position for performing the test. METHODS: The study included thirty-nine asymptomatic participants (23 males, 16 females). Their hip adduction angles were measured using the Ober test during three tibial rotation conditions (internal tibial rotation, external rotation, and neutral position). ITB length was calculated by measuring the position of the patella to lateral femoral condyle using ultrasonography (patella-condyle distance; PCD). RESULTS: The relationship among hip adduction angle, tibial rotation, and ITB length was analyzed under the three conditions using the Pearson correlation. The hip adduction angle of the internal tibial rotation, the external rotation, and the neutral position were significantly related to ITB length. Moreover, the hip adduction angle measured during the internal tibial rotation had the highest correlation with ITB length among the three conditions (r=.58, p<.001). CONCLUSION: Internal tibial rotation caused by the Ober test led to increased iliotibial band (ITB) tension and a decreased adduction angle. These findings support that tibial rotation influences the flexibility of ITB. Therefore, therapists should consider the position of the internal tibial rotation when taking measurements using an Ober test.

• 대한물리의학회지
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• 제7권2호
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• pp.165-171
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• 2012

Purpose : The purpose of this study was to investigate the change of abdominal muscle activation during unilateral leg raising in supine position among three hip abduction angles($0^{\circ}$, $15^{\circ}$, $30^{\circ}$). Methods : Twenty eight able-body volunteers who had no medical history of low back and hip joint were recruited for this study. Abdominal muscle activity was recorded using surface EMG from both sides of the rectus abdominis, internal/external oblique muscle during leg raising in each position. Results : The muscle activations induced under the three different positions were compared and results showed that there was significant difference only in the right external oblique muscle activation. Conclusion : This study suggest that leg raising of different hip abduction angles without trunk control has little influence on abdominal muscle co-activation.

• 대한물리치료과학회지
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• 제19권4호
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• pp.41-46
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• 2012

Background : The purpose of this study was to investigate the electromyographic(EMG) amplitude of the gluteus medius muscle bilaterally at various hip angles and motions(flexion, extension and abduction). Methods : Thirty young with a mean(SD) age of 21.03(1.69) years performed hip motions(flexion, extension and abduction) while the surface EMG activity of the gluteus medius muscles was recorded bilaterally. Subjects were instructed to use the right lower limb during moving 3 different direction. Differences in EMG amplitudes in according with movement direction and angle were assessed by use of paired t-test analyses of variance for the right and left lower extremities. The alpha level was set at .05. Results : Gluteus medius muscle EMG activities in the both side were significantly greater for abduction at angles of 30 degrees than those for other motions at other angles. Conclusion : Hip abduction at angles of 30 degrees on the standing position may be effective in activating the gluteus medius muscle.

• 한국운동역학회지
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• 제18권4호
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• pp.179-189
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• 2008

본 연구는 9명의 남자 중학교 초보피험자들을 대상으로 태권도 옆차기 동작의 숙련정도에 따른 운동학적 협응과정을 살펴보는 데 목적을 두었다. 이용된 변인은 최대합성직선속도, 분절간 각속도, 각도 대 각도 도면이었다. 분석결과, 연습후기로 갈수록 인접한 분절간의 운동량 전이가 잘 이루어져 각 분절의 최대합성직선속도가 유의하게 증가하였으며 분절간 각속도에서 학습후기로 갈수록 몸통에서 대퇴, 하퇴분절로의 순차적인 전이를 보였으며 던지는 듯하면서 미는 듯한 동작형태를 보였다. 엉덩관절과 무릎관절의 각도-각도 도면에서는 학습초기에는 다이나믹스한 변화를 보였으나 학습이 됨에 따라 숙련된 피험자처럼 안정적인 협응 패턴을 보여주었다.

• The Journal of Korean Physical Therapy
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• 제26권2호
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• pp.82-89
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• 2014

Purpose: This study was conducted in order to develop an instrument for the Korean Osteoarthritis Impact Measurement scale (KAIMS) in hip and knee osteoarthritis patients. Methods: A sample of 426 subjects was recruited in Ulsan metropolitan city (six hospitals and clinics) and Andong city (five hospitals and clinics) from June 2010 to May 2011. Item internal consistency and item discriminant validity were analyzed on the item-level, and floor (%) and ceiling (%) effect were analyzed on the scale-level. Exploratory factor analysis was performed for construction of items in the KAIMS instrument; confirmative factor analysis was also performed to test the fit of the model. Results: In 426 respondents, age was 64.3 years. The reliability for r coefficient 0.90 (mobility) and 0.89 (pain and stiffness) (Cronbach's alpha 0.95, 0.95 respectively) was high in the test-retest, and there was no significant difference in paired t-test (p>0.05). Item internal consistency (${\alpha}=0.92$, ${\alpha}=0.87$ respectively) was also high. It was constructed of two factors (mobility, pain and stiffness dimension) and nine items in explanatory factor analysis; results of confirmatory factor analysis also indicated that the dimensional structure model was fitted well in the test of model fit (${\chi}^2=83.83$, df=26, p=0.000; RMR=0.05; GFI=0.96; AGFI=0.83). Conclusion: In conclusion, the results of this study showed that the KAIMS that was developed was a reliable and valid instrument for measurement of osteoarthritis (OA) patients. We recommend further research for additional development of the instrument on OA in Korea.

• 디지털융복합연구
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• 제12권11호
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• pp.451-459
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• 2014

본 연구는 정상 성인의 팔 흔들기 종류에 따른 보행 시 운동역학적인 변화를 알아보기 위해서 실시하였다. 정상 성인 대학생 45명을 대상으로 정상 팔 흔들기, 한 팔 흔들기, 두 팔 움직임 없음 보행, 인위적인 팔 흔들기의 4가지 팔 흔들기 종류에 따라 실험을 진행하였다. 이들의 운동역학적인 변화를 알아보기 위해 3차원적 관절 운동역학적 변화 검사인 6-camera Vicon MX motion analysis system을 통해 보행 변수를 측정하였다. 팔 흔들기에 따른 운동역학적인 매개 변수들인 각 관절에서 보행속도, 엉덩관절 일률, 말기 디딤기의 수직 지면반발력에서 유의한 차이를 보였다(p<.05). 이러한 연구결과는 팔 흔들기 종류에 따라서 정상인과 환자들의 치료와 평가를 위한 지침으로서 임상에서 사용할 수 있을 것으로 생각된다.

• 한국융합학회논문지
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• 제12권8호
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• pp.61-66
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• 2021

본 연구는 초등학교 야구 선수들의 수직 점프 및 다리 근력과의 관계에 대해 알아보는데 목적이 있다. 대상자는 총 40명으로 실시하였다. 수직 점프를 알아보기 위해 수직 점프 측정기를 사용하여 측정하였으며, 다리 근력을 측정하기 위해 휴대용 도수 근력 측정기를 사용하였다. 다리 근력의 측정 부위는 양쪽 엉덩관절에 굽힘·폄·모음·벌림·안쪽 돌림·바깥 돌림, 무릎관절에 굽힘·폄, 발목관절의 발등 굽힘·발바닥 굽힘을 측정하였다. 수직 점프와 다리 근력의 상관관계를 분석하기 위해 pearson's correlation analysis를 사용하였다. 수직 점프 및 다리 근력과의 관계에서 우세측, 비우세측 모두 발바닥 굽힘 근력을 제외한 모든 다리 근력과 수직 점프 간의 양의 상관관계를 보였다. 향후 연구에서는 타격능력과 수직 점프 및 다리 근력의 관계에 대한 후속연구가 필요하다.

• 대한물리의학회지
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• 제18권1호
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• pp.37-50
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• 2023

PURPOSE: This study examined the effects of various interventions for improving the hip joint range of motion on elite badminton players, including body balance ability, jumping power, smash speed, and joint range of motion. METHODS: The study was conducted on elite badminton players belonging to the S badminton team in Yongin, Gyeonggi-do, and the M badminton team in Suwon, Gyeonggi-do. Twenty-one elite badminton players were selected; they were assigned randomly to Experimental Group 1 (n = 11) and Experimental Group 2 (n = 10). Before and after the intervention, the hip joint range of motion, modified star excursion balance test, Sargent jump, and smash speed were measured. In Experimental Group 1, hip joint manual mobilization was applied by a physical therapist, and hip self-exercise performed by the athletes was applied in Experimental Group 2. This intervention was applied once a day, three times a week, for four weeks. RESULTS: A significant increase in the hip joint range of motion (flexion and extension) and modified star excursion balance test (posteromedial direction) was observed in Experimental Group 1 (hip joint mobilization applied group) compared to Experimental Group 2 (hip joint self-exercise applied group) (p < .05). CONCLUSION: When elite level badminton players require improvement in hip flexion and extension range of motion and posteromedial body balance, hip joint mobilization is more effective than hip self-exercise application.

• 대한정형도수물리치료학회지
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• 제29권3호
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• pp.85-99
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• 2023

Background: This study aimed to investigate the effects of a complex manual therapy program on hip and knee pain occurring together with menstrual pain and iliotibial band tightness in a woman with sacroiliac joint dysfunction. Methods: This study was carried out over a period of 3 months by dividing the treatment process into three sequential stages. Intensities of menstrual pain, hip pain, and knee pain, and hip range of motion (ROM) in the participant were assessed at baseline and at the end of each stage, and a modified intervention was applied according to results of assessments after each stage. Results: There was a decrease in the intensity of menstrual pain after the first and third stages of treatment, and there were reductions in the intensities of hip and knee pain after the third stage. Hip ROM was rather decreased after the second stage, but it was increased after the third stage. Conclusion: The findings of this study indicate that treatment of the instability and positional fault of sacroiliac joint can relieve hip and knee pain, improve hip ROM, and alleviate primary dysmenorrhea in patients with sacroiliac joint dysfunction.