• 한국융합학회논문지
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• 제7권2호
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• pp.43-52
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• 2016

본 연구의 목적은 넙다리네갈래근 중 안쪽빗넓은근과 가쪽넓은근의 강화를 위해 효과적인 스쿼트 운동자세를 제시하는 데 있다. 연구대상자는 무릎넙다리통증증후군이 있는 20명의 환자로 본 연구에 자발적으로 참여하였다. 대상자들은 무릎관절 굽힘 각도 $45^{\circ}$, $60^{\circ}$, $90^{\circ}$ 자세에서 정적인 스쿼트 융합운동을 30초 동안 총 5회 실시하였다. 측정변수는 넙다리네갈래근의 최대 수의적 등척성 수축력(MVIC), 넙다리네갈래근 각(Q 각)과 넙다리 둘레이며, 무릎관절 자세에 따라 스쿼트 운동 전후로 측정되었으며 그 변화률을 통계분석에 사용하였다. 연구결과 넙다리네갈래근의 무릎관절 각도별 MVIC 변화율은 $90^{\circ}$ 무릎관절 굽힘에서 유의하게 증가하였으나(p<.05), Q 각과 넙다리 둘레의 변화율엔 유의한 차이가 없었다(p>.05). 따라서 무릎통증증후군 환자의 넙다리네갈래근의 강화를 위해서 무릎관절 $90^{\circ}$ 굽힘된 스쿼트 자세가 효과적임을 제시한다.

• 한국융합학회논문지
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• 제8권1호
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• pp.245-256
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• 2017

본 연구의 목적은 복합 운동재활이 무릎넙다리통증증후군 태권도 선수들의 하지 근기능 및 사이토카인에 미치는 융합적 효과를 규명하는 것이다. 본 연구에서는 무릎넙다리통증증후군 대학 태권도 선수 20명(복합 운동재활 집단 n=10, 통제집단 n=10)을 대상으로 복합 운동재활(수중운동 주 3회, 저항운동 주2회)을 8주 간 실시하였고, 통계적 유의성 검증은 SPSS 18.0 프로그램을 이용하여 혼합 설계로써 반복측정에 의한 이원변량 분석을 실시 하였으며, 모든 유의성 검증은 ${\alpha}=.05$ 수준으로 설정하였다. 그 결과는 다음과 같다. 복합 운동재활 집단이 각속도 $60^{\circ}/sec$의 피크토크(peak torque)는 처치기간이 증가함에 따라 신근(p<.001)과 굴근(p<.01) 모두 유의하게 증가하였다. 복합 운동재활 집단이 각속도 $180^{\circ}/sec$의 평균파워(average power)는 처치기간이 증가함에 따라 신근이 유의하게 증가하였다(p<.001). 복합 운동재활 집단의 $TNF-{\alpha}$ 변화는 처치기간이 증가함에 따라 유의하게 감소하였다. 따라서, 복합 운동재활 프로그램이 무릎넙다리통증증후군 환자의 하지 근기능과 TNF-a의 개선에 효과가 있는 것으로 사료된다.

• 융합정보논문지
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• 제7권4호
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• pp.39-43
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• 2017

본 연구의 목적은 앉은 자세에서 일어날 때 비탄력 테이핑을 이용한 무릎뼈의 안쪽 활주와 아래 안쪽 활주가 안쪽넓은근과 가쪽넓은근의 근활성도 비율에 미치는 영향에 대해 알아보고자 하는 것이었다. 측정 결과, 안쪽 활주와 비교하여 아래 안쪽 활주를 적용했을 때 안쪽넓은근의 근활성도가 전체 근활성도 대비 비율이 더 높게 나타나는 것을 확인할 수 있었다. 무릎뼈의 안쪽 활주보다 아래 안쪽 활주가 무릎관절의 안정성에 더 큰 기여를 하며, 특히 무릎넙다리 통증증후군의 증상 완화 및 예방에 효과적일 것으로 사료된다. 이와 관련하여 무릎뼈를 아래 안쪽 방향으로 활주 시킬 수 있는 보조기 및 운동복 등의 개발은 무릎관절의 건강을 확보할 수 있는 새로운 방법이 될 것으로 기대한다.

• 근관절건강학회지
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• 제18권2호
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• pp.249-256
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• 2011

Purpose: The purpose of this study was to investigate electromyographic(EMG) activity of vastus medialis oblique(VMO) and vastus lateralis(VL) following the application of patellar taping during stair stepping. Methods: Both VMO-VL onset timing and VMO/VL ratio of 15 participants with patellofemoral pain syndrome (PFPS) were measured using an surface EMG uint(Myosystem 1400A, Noraxon Inc., USA). The measurements were taken under three conditions in random order of patellar taping, placebo taping, and no-taping. Data were analysed using $1{\times}3$ repeated measures ANOVA. Results: There was a significant difference with patellar taping on VMO/VL amplitude compared with the placebo taping and no-taping conditions during stair stepping, but no significant difference on VMO-VL onset timing. Conclusion: These result indicate that patellar taping on the vastus medialis oblique has effect on the VMO/VL ratio. Increased values of VMO/VL ratio may contribute to patellar realignment and explain the mechanism of pain reduction following patellar taping in participants with PFPS.

• 근관절건강학회지
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• 제17권2호
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• pp.142-150
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• 2010

Purpose: The purpose of this study was to examine EMG activities and VMO/VL ratio of the vastus medialis oblique, vastus lateralis, and rectus femoris during squat exercise (knee angle: 15, 45, and 60 degrees; tibial rotation: internal rotation, neutral, and external rotation). Methods: Twelve subjects performed squat exercise at each knee angle and tibial rotation while electromyographic (EMG) activity was collected. Statistical analysis consisted of two-way repeated measures analysis of variance with post hoc analysis. Results: There were significant main effects of knee angles and foot positions and interaction effect on EMG activities of vastus medialis oblique and vastus lateralis. VMO/VL ratios were significantly different by tibial rotations and there was an interaction effect. A neutral position produced significantly more VMO/VL activity ratio than that from internally rotated position and externally rotated position at 60 degrees. Conclusion: Considering the interaction effects for EMG activity across quadriceps muscles tested, the 60 degrees knee angle with a neutral foot position may provide the most effective condition for patients with acute patellofemoral syndrome.

• 대한정형도수물리치료학회지
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• 제27권3호
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• pp.89-98
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• 2021

Purpose: The purpose of this study was to determine the effects of electromyography (EMG)-biofeedback based closed kinetic chain exercise (CKCE) on quadriceps muscle activity and dynamic balance ability in patellofemoral pain syndrome (PFPS). Methods: Thirty subjects with PFPS were included and they were divided into EMG-biofeedback using CKCE (Group I) and squat exercise using CKCE (Group II), each group consisted of 15 patients. Group I and Group II was performed by the patients for three times a week, for six weeks. sEMG was used to measure quadriceps muscle activity and star excursion balance test (SEBT) was used to measure dynamic balance ability. Results: According to the results of the comparisons between the groups, after intervention, quadriceps muscle activity and dynamic balance ability were significantly higher in Group I than in the Group II. Conclusion: Findings of this study suggest that EMG-biofeedback using CKCE that provides real-time biofeedback information on muscle contraction may have a beneficial effect on selective muscle strength of vastus medialis oblique muscle and dynamic balance ability in PFPS.

• 대한물리의학회지
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• 제16권1호
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• pp.41-48
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• 2021

PURPOSE: The purpose of this study was to provide fundamental clinical data to be used in therapeutic approach to patients with patellofemoral pain syndrome by administrating the squat exercise combined with whole body vibration exercise to them and investigating the effect of such exercise to leg muscle activity and muscle fatigue. METHODS: The patients with patellofemoral pain syndrome were randomly assigned to experimental group I (n = 9) where only squat exercise was administered and experimental group II (n = 9) where the squat exercise combined with whole body vibration exercise was provided. The intervention program was administered for two weeks, four days a week, one session a day, three set a session, and 20 reps a set. The pre- and post-test were performed to measure muscle activity and muscle fatigue of vastus medialis and vastus lateralis. RESULTS: The muscle activity significantly changed in both group (p < .05, p < .01, respectively) and the muscle fatigue showed significant change only in group I (p < .05). In addition, there was significant difference between groups in change of muscle fatigue of both muscles (p < .05) but not in change of muscle activity. CONCLUSION: The results showed that both exercise are effective in improving muscle activity, however, that the squat exercise combined with whole body vibration exercise is more effective in preventing muscle fatigue.

• 한국전문물리치료학회지
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• 제11권3호
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• pp.33-42
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• 2004

The purpose of this study was to assess the effect of rehabilitation exercise and neuromuscular electrical stimulation on a visual analysis scale and functional visual analysis scale regarding functional capacity. A total of 7 consecutive patients with the complaint of patellofemoral pain syndrome who received this diagnosis from a sports medicine physician were recruited to assess the effect of rehabilitation exercise and neuromuscular electrical stimulation (NMES) on Visual Analog Scale (VAS) and Functional Visual Analog Scale (FVAS), functional capacity patients with patellofemoral pain syndrome. The exercise rehabilitation consisted of a complex training program requiring five treatments a week for eight weeks. The training program consisted of four phases, and each lasted for two weeks. Statistical analyses were one-way ANOVA with repeated measures. The results were as follows: (1) There were significant differences in the VAS and FVAS during 8-weeks of rehabilitation exercise and neuromuscular electrical stimulation (p<.01). (2) There were no significant differences in the functional capacity during 8-weeks of rehabilitation exercise and neuromuscular electrical stimulation (p<.05). In conclusion, at the end of the eight weeks of this rehabilitation program and neuromuscular electrical stimulation, a significant reduction was found in VAS and FVAS, but there was no significant difference in functional capacity at the end of the treatment.

• PNF and Movement
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• 제17권2호
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• pp.311-319
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• 2019

Purpose: This study was conducted to determine the structural change in knees caused by quadriceps angle and the muscle activity in lower limbs. Indirect intervention was provided by using taping for stability in the ankle joints, which affected patellofemoral pain. Methods: The subjects in this study were 20 patients with patellofemoral pain who visited ${\bigcirc}{\bigcirc}{\bigcirc} $ Hospital in Busan. The visual analogue scale measured the dynamic quadriceps angle and the degree of pain felt by the patients while walking down stairs, which was a known factor of patellofemoral pain. In addition, muscle activities in the rectus femoris, vastus lateralis, vastus medialis, tibialis anterior, peroneus longus, and biceps femoris, which affect the knees and ankles, were measured using surface electromyography. The muscle activities were converted into %RVC for this study. The data obtained in this study were analyzed with the Wilcoxon signed-rank test using the SPSS Ver. 25.0 statistical program. The significance level ${\alpha}$ was 0.05. Results: The study results showed that the pain and dynamic quadriceps angle were significantly reduced statistically when applying the calcaneus fixation taping (p<0.05). Muscle activity in the lower limbs was significantly decreased in the vastus medialis, vastus lateralis, and tibialis anterior (p<0.05). Conclusion: The summary of the study results verified that the calcaneus fixation taping reduced the pain and dynamic quadriceps angle by providing stability in the ankle joints. It also produced efficient movement due to the difference in lower-limb muscle activity.

• 대한물리치료과학회지
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• 제30권3호
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• pp.59-71
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• 2023

Background: This study was to investigate the effects of coordinative locomotor training(CLT) using elastic bands on pain, dynamic balance, muscle strength, and muscle activity of female college students with patellofemoral pain syndrome(PFPS). Design: Randomized Controlled Trial Methods: Twenty-six female college students with PFPS were assigned randomly to an experimental(n=13) or control(n=13) group. The experimental group performed CLT using an elastic band. The control group performed squat exercises to strengthen muscle strength. The 30-minute inter- vention was applied a total of twelve times, three times a week for four weeks. All subjects measured the pain, the muscle strength, the dynamic balance, and the muscle activity(VL/VM ratio) before and after intervention. A paired t-test was used for the determination of differences before and after treatment, and an independent t-test was used for the determination of differences between treatment groups. Results: As a result of comparison within groups, the experimental group showed significant differences in pain, muscle strength, dynamic balance, and VL/VM ratio after the experiment(p<0.05), and the control group showed significant differences in pain, muscle strength, and dynamic balance after the experiment(p<0.05). In comparison between the two groups, the experimental group showed more significant differences in pain, dynamic balance, and VL/VM ratio than the control group(p<0.05), and the control group showed more significant differences in muscle strength than the experimental group(p<0.05). Conclusion: Based on these results, CLT using elastic bands effectively improved the pain, muscle strength, dynamic balance, and VL/VM ratio of female college students with PFPS.