가쪽넓은근 억제 테이핑 적용이 넙다리네갈래근의 근수축 특성 변화에 미치는 영향

최신현,김선엽 대한스포츠물리치료학회 2017 정형스포츠물리치료학회지 Vol.13 No.2

The purpose of this study was to investigate the effects of vastus lateralis inhibition taping when using non-elastic tape with the contraction characteristics of the quadriceps muscles. The study included 37 healthy individuals in their 20s. To compare the contraction characteristics of the quadriceps muscles after applying the non-elastic tape to the vastus lateralis, muscle tension and muscle contraction times were measured using tensiomyography. There was a significant difference in muscle tension of both the vastus lateralis and rectus femoris before and after applying the non-elastic tape to the vastus lateralis muscles. There was a significant difference in the contraction characteristics of the vastus medialis muscle on the left side in male participants. Additionally, before and after applying the non-elastic tape, the vastus lateralis/vastus medialis ratio and the rectus femoris/vastus medialis ratio of muscle tension decreased significantly. The muscle contraction times of the three muscles were not affected by applying non-elastic tape to the vastus lateralis. Use of non-elastic tape reduced muscle tension of the quadriceps muscles and rectus femoris muscles, but had no effect on the muscle contraction time.

스쿼트 운동 시 적용된 중주파 전기자극이 안쪽빗넓은근과 가쪽넓은근의 근활성도 및 근활성비에 미치는 영향

김충유 ( Chung-yoo Kim ) 대한통합의학회 2021 대한통합의학회지 Vol.9 No.4

Purpose : The purpose of this study is to investigate the effect of mid frequency electrical stimulation during squat exercise on the muscle activity and muscle activity ratio of vastus medialis oblique and vastus lateralis, and to prepare scientific basic data for exercise intervention using mid frequency electrical stimulation. Methods : This study was conducted with students from University C located in Busan, and among a total of 123 subjects, 12 subjects who complained of knee joint dysfunction between 80 and 90 points using the Kujala patellofemoral score (KPS) were used. All subjects participated in the experiment for 3 days, and MVIC values were measured for normalization of muscle activity values on the first day. For the two days, participants participated in the experiment and performed squat exercise or squat exercise receiving mid-frequency electrical stimulation in random order. Measurements were taken in the squat position immediately after the squat exercise, and muscle activities of vastus medialis oblique and vastus lateralis were measured. The measured data were compared through the dependent t test, and the statistical significance level was set to .05. Results : According to the results of this study, in the case of applying mid-frequency electrical stimulation together in the ratio of vastus medialis oblique and vastus lateralis muscle activity during squat exercise, higher values were observed compared to the case of not applying mid-frequency electrical stimulation together, and statistically significant. Also, when mid-frequency electrical stimulation was applied to both vastus medialis oblique and vastus lateralis activities during the squat exercise, higher values were shown compared to the case where the mid-frequency electrical stimulation was not applied together, but there was no statistically significant difference. Conclusion : The results of this study reported that mid-frequency electrical stimulation provided to vastus medialis oblique increased the muscle activity ratio of vastus medialis oblique and vastus lateralis. Therefore, the improvement of coordination due to the enhancement of the activity of vastus medialis oblique through mid-frequency electrical stimulation will be more helpful in the treatment of patellofemoral pain syndrome patient. In addition, it is hoped that the electrical stimulation method applied to exercise will be widely used.

외측광근의 근속길이 차이는 유소년 축구선수의 동적 균형, 족저압 및 슈팅 정확도에 영향을 미치는가?

이호성 ( Lee Ho-seong ) 한국체육학회 2020 한국체육학회지 Vol.59 No.4

이 연구에서는 유소년 축구선수를 대상으로 외측광근의 근속길이 차이가 동적 균형, 족저압 및 슈팅 정확도에 어떠한 영향을 미치는가를 검토하는데 그 목적이 있다. 연구대상은 축구 선수경력이 12개월 이상인 유소년 축구선수 15명을 초음파 영상을 통해 외측광근의 근속길이가 짧은 집단(Vastus lateralis short fascicle length group; VSFG, n=7)과 근속길이가 긴 집단(Vastus-lateralis long facicle length group; VLFG, n=8)으로 분류하였다. 모든 대상자는 동적 균형(전방, 후외측과 후내측 방향의 동적 균형 및 3방향의 복합점수), 족저압(최대 및 평균 압력, 좌우 및 전후의 체중 분포, 표면적 및 발축각) 및 슈팅 정확도를 각각 측정하였다. 동적 균형에서 3방향의 종합점수는 LFG와 비교해서 SFG에서 통계학적으로 유의하게 높게 나타났다(p=.008). 하지만 앞 방향, 후외측과 후내측 방향의 동적 균형, 족저압 및 슈팅 정확도는 집단 간에 유의한 차이가 나타나지 않았다. 이상의 결과, 이 연구에서 외측광근의 근속길이가 짧은 유소년 축구선수는 동적 균형이 우수하다는 것을 확인하였다. The purpose of this study was to examine whether differences length of human vastus lateralis muscle effect the dynamic balance, foot pressure and shooting accuracy in youth football players. Fifteen youth soccer players were divided into short fascicle length group (LFG, n = 7) and vastus lateralis long fascicle length group (SFG, n = 7) by fascicle length of vastus lateralis muscle using ultrasound imaging and also measured for the dynamic balance (anterior, posterolateral and posteromedial, and composite score), foot pressure (maximum and average pressure, left-right and front-to-back weight distribution, and foot axis angle) and shooting accuracy. Composite score were significantly higher in VSFG than that in SFG (p = .033). However, the dynamic balance in anterior, posterolateral and posteromedial, foot pressure and shooting accuracy were not significantly different between groups. These results confirmed that composite score in dynamic balance has major positive effects on vastus lateralis muscle fascicle length in youth football players.

외측광근의 근속 길이가 유소년 축구선수의 등속성 근력 및 동적 균형에 미치는 영향

진정두,이호성 한국운동생리학회 2019 운동과학 Vol.28 No.4

PURPOSE: The purpose of this study was to determine the effect of vastus lateralis muscle fascicle length on isokinetic muscle strength and dynamic balance in youth soccer players. METHODS: Fourteen youth soccer players were divided into long fascicle length group (LFG, n=7) and short fascicle length group (SFG, n=7) by fascicle length of vastus lateralis muscle using ultrasound imaging. And measurements of muscle thickness, fascicle pennation angle, and physiological cross-sectional area were taken at the same location. Additionally, maximal isokinetic strength of knee extensors was assessed at 60°/sec and 120°/sec and a Y-balance test was completed. RESULTS: Fascicle length and ratio of fascicle length/lower limb length were significantly greater in LFG than that in SFG (p<.001). Fascicle pennation angle (p<.01) and physiological cross-sectional area (p<.05) were significantly greater in SFG than that in LFG. The isokinetic maximal strength of knee extensors at 120°/sec was significantly greater in SFG than that in LFG (p<.05). The composite score of Y-balance was significantly greater in SFG than that in LFG (p<.05). CONCLUSIONS: Our results show differences in architectural characteristics of the vastus lateralis. Further, the maximal isokinetic strength of knee extensors at 120°/sec and the ability of dynamic balance were greater in short vastus lateralis fascicle length of youth soccer players.

와이드스쿼트 운동이 안굽이무릎 변형이 있는 성인의 안쪽넓은근과 가쪽넓은근의 근활성에 미치는 영향: 단일 사례 연구

김기철 한국보건기초의학회 2019 한국보건기초의학회지 Vol.12 No.2

The purpose of this study is to investigate the effects of wide-squat exercise on muscle activities of vastus medialis and lateralis in a adult with Genu varum deformity. The subject, a 23 years-old male student with genu varum deformity, was performed the intervention, wide-squat exercise according to the knee joint angle, during three times a week for four weeks. After then, the changes of Q-angle and muscle activities were compared. The ratio of the vastus medialis and lateralis was changed from 30.70: 14.43 to 24.9: 30.63. Even though the wide squat exercise showed no significant change in Q-angle, that is the effective intervention for balancing the muscle activities of the vastus medialis and lateralis.

키네시오 테이핑이 퇴행성 슬관절염 환자의 외측광근과 내측광근의 근활성도에 미치는 효과

손길수,이수연,전혜진,이문환,Son, Gil-Soo,Lee, Soo-Yeon,Jeon, Hye-Jin,Lee, Moon-Hwan 대한물리치료학회 2007 대한물리치료학회지 Vol.19 No.1

Purpose: This study was conducted to investigate the effects of kinesiotaping on the muscle activities in patients with degenerative arthritis. To evaluate the effects of taping therapy, we calculated activation of vastus medialis and vastus lateralis. Methods: 40 female patients with degenerative arthritis of knee joint were participated in this study. Muscle activation were assessed by using a surface EMG. This procedure was performed with and without taping. Results: The activation of vastus lateralis was significantly increased in comparison between pre and post test. And vastus medialis was significantly increased in comparison between pre and post test. Conclusion: We thought that kinesio taping have effectiveness on the muscle activation of vastus lateralis and vastus medialis in patients with degenerative arthritis.

Effects of the Early Sensorimotor Training on Vastus Medialis Oblique Muscle Activation in Patients after Partial Medial Meniscectomy

Dawoon Jeong,Gak Hwangbo 국제물리치료연구학회 2020 Journal of International Academy of Physical Ther Vol.11 No.1

Background: Early rehabilitation after partial meniscectomy is important to recover the balance of the vastus medialis oblique and vastus lateralis and prevent pathological problems in the lower extremities and the whole body. Objective: To compare muscle activations for patients after partial meniscectomy. Design: Dual-group Pretest-Posttest Design from the Quasi-Experimental Research. Methods: Twenty participants after partial meniscectomy were recruited and were randomly divided into a Q-setting sensorimotor training group (QSMTG) and Q-setting exercise group (QSEG). Muscle activity of the vastus medialis oblique and vastus lateralis was measured before and after intervention. Results: In the two groups, the vastus medialis oblique and vastus lateralis activations increased significantly (P<.05). The Q-setting sensorimotor training group showed more increases than the Q-setting exercise group, and there were significant differences between the groups (P<.05). The activation ratio of the vastus medialis oblique and vastus lateralis had increasingly significant differences in the Q-setting sensorimotor training group (P<.05), and there were no significant differences between the groups (P>.05). Conclusion: Q-setting exercise with sensorimotor training was a useful method that improved the balance of vastus medialis oblique (VMO) and vastus lateralis (VL) activity after meniscectomy.

Comparisons of Vastus Medialis and Vastus Lateralis Muscle Activities according to Different Heights during Drop Landing in Flatfooted Adults

( Jong Sung Chang ) 대한물리치료학회 2020 대한물리치료학회지 Vol.32 No.5

Purpose: The purpose of this study was to investigate comparisons of vastus medialis (VMO) and vastus lateralis (VL) muscle activities according to different heights during drop landing in flatfooted adults. Methods: Fifteen subjects with a flat foot arch and 15 subjects with a normal feet arch were participated. Subjects performed a double limb drop landing task from 20, 40, and 60 cm heights. Surface electromyography was used to measure the muscle activities of the VMO and VL during drop landing. Results: There were significant differences of muscle activities in the VMO, VL, and the VMO and VL ratio between groups. The electromyography values of VMO, VL, and the VMO and VL ratio in the normal group were significantly greater than in the flat foot group, and muscle activities and the VMO and VL ratio significantly increased with landing heights in the both groups. Conclusion: Our results indicated that muscle activity patterns of VOM and VL in the flat foot group were lower at heights than in the normal group, so calf tightness was negative effects on balance and gait ability, so assessment of muscle activation patterns in the knee extensors should be considered during exercise and treatment of flat feet.

Morphometric study of tensor of vastus intermedius in South Indian population

Raveendranath Veeramani,Dhivyalakshmi Gnanasekaran 대한해부학회 2017 Anatomy & Cell Biology Vol.50 No.1

Tensor of vastus intermedius is a newly discovered muscle located between vastus lateralis and vastus intermedius. The purpose of this study was to investigate the detailed morphology of tensor of vastus intermedius, specifically to provide data pertaining to the attachments, innervations, variation in the types and its morphometry in South Indian population. The tensor of vastus intermedius was studied in thirty six cadaveric lower limbs using macrodissection techniques. The origin of the muscle was from upper part of intertrochanteric line and anterior part of greater trochanter of femur inserted to medial aspect of upper border of patella. The muscle was classified into four types based on the origin and also the aponeurosis course with independent type (type 1) being common. The mean and standard deviation of the length of tensor of vastus intermedius and aponeurosis were 145.40±37.55 mm and 193.55±42.32 mm, respectively. The results of the study suggest that tensor of vastus intermedius is variable and the information provided regarding the attachments, types and quantitative data will contribute to the existing knowledge of the muscle.

계단 오르기 시 정강이뼈 돌림이 하지의 역학과 근 활성도에 미치는 영향

강정일 ( Jeong Ii Kang ),이유경 ( Yu Kyung Lee ),박승규 ( Sung Kyu Park ),이준희 ( Joon Hee Lee ),양대중 ( Dae Jung Yang ),최현 ( Hyun Choi ) 한국운동역학회 2011 한국운동역학회지 Vol.21 No.4

This study was performed to investigate the effects of tibial rotation while going up stair on muscle activity of vastus medialis oblique and vastus lateralis, and on patellar displacement. The subjects included 30 people (male: 15; female: 15) who were randomly assigned to the tibial internal-rotation, neutral-rotation, and external-rotation groups, The subjects went up the stair while performing the assigned rotations, and the rotation of the hip and the displacement of the patella were measured using a 3D motion analyzer. In addition, the maximum voluntary isometric contraction (MVIC) of the vastus medialis oblique and vastus lateralis were measured using surface electromyogram. On the tibial internal rotation, the hip rotation significantly appeared in the same direction and so did on the tibial neutral and external rotations (p<.001). Although the MVIC of the vastus medialis oblique and vastus lateralis did not significantly differ by tibial rotation during the stair ascent, the MVIC of the vastus medialis oblique was higher than that of the vastus lateralis during the internal and neutral rotations (p<.05). In addition, during the stair ascent, the displacement of the patella was more significant during the tibial external rotation than during the tibial internal and neutral rotations (p<.001). Thus, patients with patellofemoral pain are required to be considered the effects of tibial rotation for their rehabilitation.