The Effect of Pelvic Compression Belt on the Strength of Hip Muscle and EMG Activity in Individuals with Sacroiliac Joint Pain during Prone Hip Extension

최재홍,오재섭,김문환 KEMA학회 2019 근골격계과학기술학회 Vol.3 No.1

ABSTRACT Background Pelvic compression belt passively stabilized the sacroiliac joint via application of a compression force, thereby having a possibility to affect hip muscle strength. Purpose We investigated the effects of pelvic compression belts on the strength of hip extensor and the electromyographic (EMG) activities of latissimus dorsi and erector spinae during isometric prone hip extension with knee extension and prone hip extension with knee flexion. Study design Comparative, repeated measures design. Methods We recruited 15 patients with sacroiliac joint pain. All performed isometric prone hip extension with knee extension with and without a pelvic compression belts at a hip extension of 10°. Strength of hip extensor were measured using a load cell, and the muscle activities of the contralateral latissimus dorsi and erector spinae muscles measured using surface EMG. Results Strength of hip extensor with a pelvic compression belts increased significantly compared to without a pelvic compression belts (p<0.001) as did the EMG activity of the contralateral latissimus dorsi (p<0.05). However, the EMG activity of the contralateral erector spinae did not change significantly (p>0.05). Conclusions We recommend using of a pelvic compression belts by sacroiliac joint pain patients increased the strength of hip extensor and muscle activity of contralateral latissimus dorsi. ABSTRACT Background Pelvic compression belt passively stabilized the sacroiliac joint via application of a compression force, thereby having a possibility to affect hip muscle strength. Purpose We investigated the effects of pelvic compression belts on the strength of hip extensor and the electromyographic (EMG) activities of latissimus dorsi and erector spinae during isometric prone hip extension with knee extension and prone hip extension with knee flexion. Study design Comparative, repeated measures design. Methods We recruited 15 patients with sacroiliac joint pain. All performed isometric prone hip extension with knee extension with and without a pelvic compression belts at a hip extension of 10°. Strength of hip extensor were measured using a load cell, and the muscle activities of the contralateral latissimus dorsi and erector spinae muscles measured using surface EMG. Results Strength of hip extensor with a pelvic compression belts increased significantly compared to without a pelvic compression belts (p<0.001) as did the EMG activity of the contralateral latissimus dorsi (p<0.05). However, the EMG activity of the contralateral erector spinae did not change significantly (p>0.05). Conclusions We recommend using of a pelvic compression belts by sacroiliac joint pain patients increased the strength of hip extensor and muscle activity of contralateral latissimus dorsi.

Relationship Between Strength of Hip Muscles and Performance of Close Kinetic Chain Dynamic Lower Extremity Stability Test

Hyeon-ju Lee,황의재,정성훈,안선희,권오윤 한국전문물리치료학회 2020 한국전문물리치료학회지 Vol.27 No.4

Background: The hip muscle plays various roles. Several types of functional performance tests are used for the assessment of patients with various lower extremity injuries. Hip muscle functions are important to test the performance of maintaining the spine, pelvic, and leg during bridging exercise. We designed a novel functional performance test tool, which we named close kinetic chain dynamic lower extremity stability (CKCLE) test to assess hip muscle functions. Objects: The purpose of this study was to determine the relationship between CKCLE test and hip extensor, external rotator, and abductor strengths. Methods: Twenty-two subjects were recruited in the present study (13 males and 9 females). The hip extensor, external rotator, and abductor muscle strengths were measured using a Smart KEMA strength sensor. When the examiner said “Go”, the subject performed the CKCLE test by moving one leg from the floor and touching the opposite knee and then return to the floor while maintaining the bridging position. The subjects attempted as many “touches” as possible in the allotted time (20 seconds) during the maximal tests. The correlation between the hip muscle (extensor, external rotator, and abductor) strength of the supporting leg and the number of CKCLE tests performed in 20 seconds was determined using the Pearson correlation. Results: Hip extensor (r = 0.626, p < 0.05), hip external rotator (r = 0.616, p < 0.05), and hip abductor muscle strengths (r = 0.475, p < 0.05) positively correlated with the number of CKCLE tests performed. Conclusion: We designed a CKCLE test and found that performance in the test correlated with hip extensor, external rotator, and abductor muscle strengths. The result suggests that the CKCLE test can be applied as a performance test to assess the functions of the hip extensor, external rotator, and hip abductor muscles.

Is There a Correlation between the Pelvic Floor Muscle Functions and the Strength of the Hip Muscles in Female with Stress Urinary Incontinence?

황의재,오재섭,김문환 KEMA학회 2020 근골격계과학기술학회 Vol.4 No.2

Background: Because the hip muscles could affect pelvic floor muscle (PFM) function and tension of endopelvic fascia, contraction of hip muscles has been applied for stress urinary incontinence (SUI) intervention as co-contraction between hip muscles and PFM. Purpose: The purpose of current study was to confirm the relationship between hip muscles strength and PFM functions in female with SUI. Study design: Cross sectional study Methods: Thirty-three female with SUI were recruited for the present study. PFM strength and endurance were measured by perineometer (unit: mmHg). Hip extensor, abductor, adductor and gluteal squeeze strength were measured by Smart KEMA tension sensor (unit: kg/body weight). The significance of the correlations between hip muscles strength and PFM functions were assessed using Pearson correlation coefficients. Results: There were not significant correlations between PFM functions (strength and endurance) and hip extensor, abductor, adductor and gluteal squeeze strength. Conclusions: These findings could indicate the difficulty of co-contraction of hip abductor, adductor, extensor and gluteal squeeze with PFM in female with SUI, which is caused by PFM dysfunction.

Evaluating Postoperative Muscle Strength Using Surface Electromyography in Hip Fracture Patient

유준일,변하영,Hyeong Seop Kim,Yun Jeong Jang,Chang Han Lee 대한골대사학회 2020 대한골대사학회지 Vol.27 No.2

Background: To compare the muscle strength of patients with a hip fracture according to the presence of sarcopenia after surgery and the correlation of measured values between a Biodex and surface electromyography (sEMG) in postoperative measurement of muscle strength. Methods: Seventy-one patients who underwent hip fracture surgery were included in this study. Muscle mass was measured using dual energy X-ray absorptiometry and the grip strength was evaluated using a dynamometer. The diagnosis of sarcopenia followed the Asian Working Group for Sarcopenia criteria. We evaluated the Biodex to assess muscle strength according to the presence of sarcopenia and at the same time measured the sEMG to evaluate the correlation of muscle strength between Biodex and sEMG. Results: We assigned 34 patients with sarcopenia and 37 without sarcopenia to 2 groups. In the comparison of muscle strength using Biodex and sEMG between the 2 groups, it was confirmed that muscle strength of sarcopenia group was decreased compared with that of the non-sarcopenia group, although there was no statistical significance between the groups. However, Biodex and sEMG showed very close correlation with muscle strength in all variables. Conclusions: We suggest that using sEMG for the evaluation of muscle strength after hip fracture surgery may be an excellent tool alternative to isokinetic testing machines such as the Biodex.

Comparison of Hip Joint Strength between Young Woman Patient with Chronic Low Back Pain with Lumbar Instability and Normal Subjects

Cha, Hyun Gyu 물리치료재활과학회 2022 Physical therapy rehabilitation science Vol.11 No.3

Objective: The purpose of this study was to compare the hip joint muscle strength of patients with chronic back pain with lumbar instability and normal subjects. Design: A case control study. Methods: Five types of lumbar instability test were conducted on forty young women with chronic low back pain for more than six months, and those who had 3 or more positive tests were selected as subjects. To select chronic back pain patients with lumbar instability group, aberrant movement patterns during lumbar flexion test (FMT), prone instability test (PIT), posterior-anterior mobility test (PAT), passive lumbar extension test (PLE), and pressure bio-feedback (PBF) were applied. In addition, a digital muscle strength meter was used to measure the hip flexor, extensor, adductor, and abductor muscles of chronic low back pain patients with lumbar instability group (n=20) and normal subject group (n=20). Results: As a result of comparing the hip joint muscle strength between the chronic back pain patient group with lumbar instability and the normal group, there were significant differences in the hip extensor, abductor, and adductor muscles (p<0.05). Conclusions: Patients of chronic back pain with lumbar instability were found to have weak hip joint muscle strength. Therefore, this study suggest that include hip joint strength exercise for functional recovery of chronic back pain patients.

정적 스트레칭과 근막 스트레칭이 엉덩관절 가동범위, 근력 및 골반정렬에 미치는 영향

양회송,정찬주,유영대,강효정,김민규 한국지역사회건강관리협회 대한건강과학학회 2024 대한건강과학학회지 Vol.21 No.1

Background : The purpose of this study was to investigate the effects of stati cs stretching and fascia stretching on hip joint range of motion, muscle strength, and pelvic alignment. This study was conducted on 31 subjects without back pain. Methods : Subjects were divided into two groups; static stretching(group Ⅰ, n =11), fascia stretching(group Ⅱ, n=13). Both groups executed the exercise thre e times a week for 4 weeks. The ranges of hip motion were assessed by gonio meter, the muscle strenth was conducted by Microfet2, and the pelvic alignment was assessed by Posturemeter before and after in both groups. The data was analyzed by the paired t-test to compare differences before and after on each group and the independent t-test to compare between the two gro ups. Results : In groupⅠ, showed significant increases in bilateral flexion, extensio n, and lateral rotation, while in groupⅡ, left abduciton and right lateral rotation i ncreased significantly. In groupⅠ, the difference of stretch of hip muscles was n o significant before and after, however, in groupⅡ, the strength of right lateral r otation significantly increased. There was no statistically difference in range of motion, strength, and pelvic alignment in between groups. Conclusion : According to the results, stretching exercises are effective for en hancing range of motion and pelvic alignment; however, they do not significatly i mprove muscle strength. To increase muscle strength, it is necessary to perform both stretching and strengthening exercises concurrently.

중년 남성 고관절 등속성 근력과 골밀도의 상관관계 분석

김아람(Kim, A-Ram),유정완(You, Jung-Wan) 한국체육과학회 2018 한국체육과학회지 Vol.27 No.6

The purpose of this study is to provide basic data for preventing male osteoporosis by analyzing the effects of hip joint isokinetic muscular function on lumbar and thigh bone density of middle-aged men. The subject of this study consisted of 23 middle-aged men in S-si and measured loading rate of hip joint 45dge/sec, 300dge/sec using multi-frequency impedance device(Inbody 4.0, Biospace Co.) for measuring body composition, dual energy x-ray bone densitometer(PRODIGY, GE Medical Systems Lunar) for measuring thigh bone density, and Biodex system 3 for measuring isokinetic muscular function. This study used SPSS 21.0 version for statistical processing. The isokinetic strength variable that made the biggest effect on thigh bone density of middle-aged men was the right muscle strength(extension muscle strength: r=.633, p<.01, flexion muscle strength: r=.585, p<.01), and muscle endurance had no correlation. According to the regression analysis, flexion muscle strength showed higher explanation power for thigh bone density among isokinetic muscular strength variables(muscle power: 69.9% vs 22.7%, muscle endurance: 17.9% vs -). Independent variables that make a significant effect on hip joint flexion muscle were in the order of femur, neck, troch, and BMD, and regression equation of hip joint isokinetic strength is -13.645+337.710(Neck BMD)-228.744(Troch BMD) and 70%(67% according to the modified coefficient of determination) is being explained by the independent variable included in the model.

발목 감각-운동과 엉덩 관절 근력 강화 통합 훈련 프로그램이 기능적 발목 불안정성 대상자의 정적균형과 동적 균형 및 근력에 미치는 영향

황종석,박순지,유경태 대한물리의학회 2022 대한물리의학회지 Vol.17 No.2

PURPOSE: This study examined the comparative effects of an ankle sensorimotor training program combined with hip strengthening exercise (ASTPCHSE) and ankle sensorimotor training program (ASTP) alone on muscle strength, static balance, and dynamic balance in individuals with functional ankle instability. METHODS: Sixteen research participants with functional ankle instability were enrolled in this study. The participants were divided randomly into the ankle sensory motor training program group and the ankle sensory motor training program combined with the hip strengthening exercise group. Each group performed a series of exercise programs two times per week for four weeks. The Cumberland ankle instability tool (CAIT) was used to measure the participants’ functional ankle instability. A Balance trainer 4 was applied to assess the static and dynamic balance, and a Primus RS multimodal dynamometer was used to evaluate the muscle strength. RESULTS: No significant differences in static balance, dynamic balance, and muscle strength were found between the ASTP and ASTPCHSE groups (p > .05). On the other hand, the dynamic balance and muscle strength improved in the ASTP and ASTPCHSE groups after the intervention (p < .05). The static balance was not enhanced in both groups after the intervention (p > .05). CONCLUSION: Ankle exercise and an ankle sensorimotor training program combined with hip strengthening exercise are effective in improving muscle strength and dynamic balance in individuals with ankle instability. On the other hand, there are no meaningful differences between ankle exercise and ankle and hip combined exercise.

Correlation Between Mechanography and Clinical Parameters at Six Months After Hip Fracture Surgery

Tae Jun Min,Junmo Cho,Yong-Chan Ha,Jae-Young Lim,Si Hyun Kang,Don-Kyu Kim,Kyung Mook Seo,범재원 대한재활의학회 2019 Annals of Rehabilitation Medicine Vol.43 No.6

Objective To investigate the correlation between mechanography and clinical parameters in older people at 3 and 6 months after hip fracture surgery. Methods A longitudinal follow-up study was conducted in university hospitals with 38 patients at 3 months and 29 patients at 6 months after hip fracture surgery. Subjects 65 years and older completed measurements on the Berg Balance Scale (BBS), Functional Ambulation Category (FAC), walking ability by Koval, Korean version of the fatigue, resistance, ambulation, illnesses, and loss of weight (K-FRAIL) scale, and hand grip strength. The Romberg test with center of foot pressure (COP), chair rise test (CRT), and maximal power (W/kg) were conducted using the Leonardo Mechanograph. Results COP area and pathway length were correlated with BBS at 3 and 6 months. Change in BBS was correlated with change in COP area, but not with change in COP length. COP area and pathway length were correlated with K-FRAIL at 3 months after hip fracture surgery. The same COP variables showed correlations with FAC and walking ability by Koval at 6 months after surgery. Maximal power during CRT had correlation with chair rise time but not with other clinical parameters. Conclusion The study revealed correlations between mechanography and clinical parameters in older people at 3 and 6 months after hip fracture surgery. Both the clinical assessment and objective test with mechanography may be required for the quantitative and sensitive measurement of postural balance and lower limb muscle power.

Relationship Between the Number of Hip Abduction Performance With Contralateral Adduction in Side-lying and the Lateral Pelvic Shift Distance During One-leg Lifting

Lee Do-eun,Kim Jun-hee,Gwak Gyeong-tae,Weon Young-soo,Kwon Oh-yun 한국전문물리치료학회 2023 한국전문물리치료학회지 Vol.30 No.2

Background: The gluteus medius (Gmed) plays a critical role in maintaining frontal plane stability of the pelvis during functional activities, such as one-leg lifting. Side-lying hip abduction (SHA) has been used as a dynamic test to evaluate Gmed function. However, the abduction force of the lower leg against the floor is not controlled during SHA. Therefore, hip abduction performance with contralateral adduction in the side-lying position (HAPCA) can be proposed as an alternative method to assess performance of hip abduction. If the number of HAPCA is related to the lateral pelvic shift distance, a new quantitative measurement for hip abductor function may be presented. Objects: This study aimed to investigate the relationship between the number of successful HAPCA and the lateral pelvic shift distance during one-leg lifting. Methods: Thirty healthy participants were recruited, and lateral pelvic shift distance was measured during one-leg lifting test using two-dimensional analysis. The number of successful HAPCA was counted when participants touched both target bars at the beat of a metronome. Results: There was a negative correlation between the number of HAPCA and lateral pelvic shift distance during one-leg lifting (r = –0.630, p < 0.05). The number of HAPCA accounted for 39.7% of the variance in the lateral pelvic shift distance during one-leg lifting (F = 18.454, p < 0.001). Conclusion: The number of successful HAPCA is significantly correlated with lateral pelvic shift distance during one-leg lifting. This finding suggests that HAPCA can be proposed as a new measurement for hip abductor performance and more research is needed on its relationship with hip abductor strength.