• 제목/요약/키워드: Vastus medialis

검색결과 250건 처리시간 0.029초

계단 오르기 시 정강이뼈 돌림이 하지의 역학과 근 활성도에 미치는 영향 (Tibial Rotation Influences Muscle Activity and Motion of Lower Extremity during The Stair Ascent)

  • 강정일;이유경;박승규;이준희;양대중;최현
    • 한국운동역학회지
    • /
    • 제21권4호
    • /
    • pp.467-477
    • /
    • 2011
  • 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.

트레드밀 전.후방 보행에서 경사도와 속도에 따른 넙다리네갈래근 테이핑 적용 시 근활성도 비교 (Comparison to muscle activity of quadriceps femoris when apply a taping according to slope and speed during forward and backward walking on treadmill)

  • 김병곤;임미선;서현규
    • 대한정형도수물리치료학회지
    • /
    • 제15권2호
    • /
    • pp.50-62
    • /
    • 2009
  • Purpose: to analyze and compare mucsle activity of Quadriceps femoris depending on the existence of taping while normal people walk forward and backward on treadmill when the slope and speed changes on treadmill. Method: Among 40 people who participated in this study, 20 experimenter who apply a taping walk forward and backward to 0%, 5%, 10% gradient per 2km/h and 4km/h using treadmill to give arbitrary walking behavior, 20 experimenter who doesn't apply a taping also walk forward and backward to 0%, 5%, 10% gradient per 2km/h and 4km/h using treadmill. To analyze muscle activity, We use an electromyography and Kinesio tape of good elasticity for obtained suffient effects in the experiment. Result: During backward walking in 2km/h, Vastus medialis and Vastus lateralis showed significant differences(p<0.05) when apply a taping. During backward walking in 2km/h, Vastus medialis and Rectus femoris, and Vastus lateralis all showed significant differences(p<0.05). During backward walking in 2km/h, Vastus medialis and Vastus lateralis showed significant differences in 10% gradient(p<0.05). During backward walking in 4km/h, Vastus medialis and Rectus femoris, and Vastus lateralis all showed significant differences(p<0.05). During backward walking in 4km/h, By the difference in slope, Vastus medialis and Vastus lateralis showed significant differences between 0% and 10% gradient(p<0.05). Conclusion: In comparison to muscle activity of Quadriceps femoris when apply a taping according to slope and speed during forward and backward walking on treadmill, when apply a taping and walk backward and 10% gradient on treadmill in 4km/h, maximum of muscle activity is shown.

  • PDF

무게부하를 이용한 교각운동이 건강한 성인 남성의 몸통 및 다리 근육의 활성화에 미치는 영향 (Effects of Bridging Exercise Using Weight Loads on Trunk and Lower Limb Muscles Activity in Healthy Adult Males)

  • 이수경
    • PNF and Movement
    • /
    • 제15권3호
    • /
    • pp.303-310
    • /
    • 2017
  • Purpose: This study observed the activity of trunk and lower limb muscles during a modified bridging exercise with various weight loads. Methods: The participants in this study consisted of 15 male adults. The muscle activity of the elector spinae, rectus abdominis, gluteus maximus, gluteus medius, vastus medialis, vastus lateralis, tibialis anterior, and soleus muscles was measured with an EMG-8 system during a modified bridging exercise performed with various weight loads (indicated as percentage of body weight). Differences in muscle activity during the bridging exercise according to the weight load applied were analyzed using a one-way ANOVA, and post hoc analysis was performed using LSD. Statistical significance was accepted at a p-level of 0.05. Results: When the subjects performed the modified bridging exercise with various weight loads, the muscle activity of the gluteus maximus and vastus medialis peaked at a load of 0.5%. The activity of the gluteus medius showed a remarkable difference when the modified bridging exercise was performed at loads of 0% and 0.5%, 0% and 1%. In addition, the activity of the vastus medialis showed a remarkable difference between modified bridging exercises performed at a load of 0% and that performed at a load of 0.5%. Conclusion: The results suggest that performing modified bridging exercises with a load of 0.5% of body weight results in significant differences in the activity of the gluteus medius and vastus medialis muscles. Thus, it is suggested that performing the modified bridging exercise at 0.5% of body weight may selectively strengthen the gluteus medius and vastus medialis muscles.

축구선수의 킥 동작시 키네시오 테이핑 적용에 따른 하지근활성화 및 동작분석 (Analysis of Low-leg Activation and Movement of Soccer Players during Kicking Action by Applying Kinesiotaping)

  • 김용재;모안나
    • 한국운동역학회지
    • /
    • 제17권2호
    • /
    • pp.131-143
    • /
    • 2007
  • In this study, we are concluded like this : 5 men who are soccer player of P university in B city measure the Electromyography with an angle of motion according to kinesiotaping's application when practicing in-step kick. When exercising in-step kick, the change of realization of muscle load of lower limbs enhence Gastrocnemius Lateralis and Vastus Medialis in the section of backswing, and improve Tibialis Anterior, Vastus Medialis, Rectus Femoris prior to impact after back-swing. Before impact, it mainly impoved Tibialis Anterior, Vastus Medialis, Rectus Femoris. After impact, it generally improved Gastrocnemius Lateralis, Vastus Medialis. Average integral electromyography value, it was such a small difference(; the difference of the value in Tibialis Anterior, Rectus Femoris, Vastus Medialis) that we can't compare case of after taping than before. In Electromyography, in case of after taping was considerably decreased at Gastrocnemius Lateralis, there was statistically significant difference between before and after. It was a little increased, after taping than before at Knee angle. And degree was a little decreased at Ankle angle. But, It's so delicate difference, there was not statistically significant difference between before and after.

Arthroscopic Reduction of Irreducible Posterolateral Knee Dislocation with Interposition of the Vastus Medialis: A Case Report

  • Sim, Jae-Ang;Kim, Byung-Kag;Lee, Beom-Koo;Yoon, Yong-Cheol;Choi, Eun-Suk
    • Journal of Trauma and Injury
    • /
    • 제29권4호
    • /
    • pp.167-171
    • /
    • 2016
  • Irreducible traumatic knee dislocation is rare. The knee dislocation is classified depending on the incarcerated structures. Complete reduction is achieved by extracting the incarcerated structure. Several reports introduce the reduction of irreducible traumatic knee dislocation by open surgery or arthroscopy. This case describes irreducible posterolateral knee dislocation with interposition of the vastus medialis. Closed reduction failed in the emergency room, and complete reduction was attained by arthroscopically sectioning the muscle and fascia of the vastus medialis in the intercondylar notch.

The Effect of One Leg Deadlift Exercise on the Muscle Activity of Lower Extremities according to the Weight Characteristics

  • Park, Tae Geun;Lee, Jae Kwang
    • The Journal of Korean Physical Therapy
    • /
    • 제34권5호
    • /
    • pp.267-271
    • /
    • 2022
  • Purpose: This study examined the effects of a kettlebell and aqua bag on the gluteus maximus, gluteus medius, and vastus medialis lower extremity muscle strength during a one-leg deadlift, a top-down exercise. Methods: Twenty healthy adults were enrolled in the one-leg deadlift exercise under two conditions. The muscle activity of the gluteus maximus, gluteus medius, and vastus medialis was measured by surface electromyography (S-EMG). A paired t-test was used for statistical analysis, and the statistical significance criteria were set to p<0.05. Results: A comparison of the muscle activity according to the degree of contraction of the gluteus maximus revealed low muscle activity in AD exercise compared to KD exercise (p<0.05), and there was no significant difference in the gluteus medius and vastus medialis (p<0.05). Conclusion: These results suggest that when the one-leg deadlift exercise is performed according to the weight characteristics, the gluteus maximus is suitable for intervention using a kettlebell, and the gluteus medius and vastus medialis are more suitable for intervention by providing instability using an aqua bag.

다양한 발목각도에 따른 스쿼트 시 오른쪽 다리의 근 활성도 비교 (The Comparison of Muscle Activities in the Right Leg during Squatting According to Various Ankle Angles)

  • 안수홍;이수경;이광준;박진성;황제웅
    • PNF and Movement
    • /
    • 제15권3호
    • /
    • pp.259-266
    • /
    • 2017
  • Purpose: This study aimed to compare muscle activities in the right leg during squatting on an angle-adjustable inclined wooden plate at three different angles. Methods: The subjects were 19 healthy adult men and women. An angle-adjustable inclined wooden plate was used for the experiment, and the subjects performed squatting at three adjusted angles of $0^{\circ}$ ankle angle, $10^{\circ}$ ankle flexion, and $10^{\circ}$ plantar flexion. Squatting was randomly performed without a sequence. The knee angle was set at $45^{\circ}$, and a goniometer was used to measure the angles accurately. Electromyography was employed to measure and compare muscle activity in the right leg in each condition. The measured data were converted to root mean square values to calculate the muscle activities. Results: This study showed no statistically significant difference at a $0^{\circ}$ ankle angle, but a statistically significant difference was found in the vastus medialis at $10^{\circ}$ of ankle flexion. Moreover, statistically significant differences were observed in the vastus medialis and lateralis at $10^{\circ}$ of plantar flexion. Conclusion: This study showed a statistically significant difference in the vastus medialis at $10^{\circ}$ of ankle flexion and statistically significant differences in the vastus medialis and lateralis at $10^{\circ}$ of plantar flexion. Therefore, it may be effective to perform squatting at $10^{\circ}$ of ankle flexion when intending to selectively strengthen the vastus medialis and at $10^{\circ}$ of plantar flexion when intending to strengthen both the vastus medialis and lateralis.

내측광근 강화운동을 이용한 슬개-대퇴 동통 증후군 치험 2례 (A Case Report of Two Patients with Patello-Femoral Pain Syndrome Using Exercises for Vastus Medialis)

  • 김종수;김진수;김세준;정승현;김효섭;윤문식;조태영
    • 척추신경추나의학회지
    • /
    • 제8권1호
    • /
    • pp.75-85
    • /
    • 2013
  • 슬개-대퇴 통증 증후군 환자 2례에 내측광근 강화 운동을 이용하여 치료한 결과, Knee X-ray(Skyline view) 상의 일치각 및 NRS, WOMAC Index의 호전을 확인하였다. 이에 저자는 본 증례를 보고하는 바이다.

  • PDF

비탄력테이프를 이용한 외측광근 억제가 슬관절 등척성 신전 시 외측광근과 내측광근의 근활성도에 미치는 영향 (The Effect of Vastus Lateralis Inhibition Taping Using Non-elastic Tape on the Electromyographic Activity of the Vastus Medialis Oblique and Vastus Lateralis During Isometric Knee Extension)

  • 이다비;김선엽
    • 대한물리치료과학회지
    • /
    • 제23권1호
    • /
    • pp.24-32
    • /
    • 2016
  • Purpose: Muscle imbalance around the knee region, especially quadriceps imbalance, is considered one of the main contributing factors to the development and progression of knee dysfunction based on the changes observed via electromyography (EMG). This study aimed to investigate the effect of vastus lateralis (VL) inhibition taping using non-elastic tape on the EMG activity of the vastus medialis oblique (VMO) and VL during isometric knee extension. Method: Thirty-three healthy young adults (11 males and 22 females) were recruited. With and without VL inhibition taping, the participants performed isometric knee extension in the sitting position for a total of 7 seconds. Result: VMO/VL EMG ratio significantly increased after VL inhibition taping (p<.05). Conclusion: These findings suggest that VL inhibition taping may contribute to VL inhibition and may help improve VMO/VL ratio in young adults. We expect VL inhibition taping to be useful in individuals with greater VL than VMO activity

  • PDF

Comparison of Lower Extremity Muscle Activity According to Ankle Angle during Sling Bridge Exercise in Patients with Patellofemoral Pain Syndrome

  • Jonghoon An;Jihye Jung;Jinhyung Choi;Seungwon Lee
    • Physical Therapy Rehabilitation Science
    • /
    • 제12권1호
    • /
    • pp.26-32
    • /
    • 2023
  • Objective: This study attempted to compare the effects of bridge exercise using a sling according to the angle of the ankle to confirm the effective lower extremity muscle activation posture of patients with patellofemoral pain syndrome(PFPS). Design: Cross-sectional study Methods: Seventeen patients with PFPS were recruited and the muscle activities of the vastus medialis, vastus lateralis, rectus femoris, and gluteus maximus were measured according to the ankle position (dorsiflexion, neutral, plantar flexion). After measuring the maximum number of isometric contractions of vastus medialis, vastus lateralis, rectus femoris, and gluteus maximus, bridging exercise using a sling according to each ankle posture was applied to measure lower extremity muscle activity. The evaluation was performed 3 times for 10 seconds. The three ankle postures were randomly performed and the average values were compared. Results: As a result of this study, the vastus medialis muscle showed high muscle activity in the order of dorsiflexion, plantar flexion, and neutral position bridge exercise (p<0.05). And the vastus lateralis showed high muscle activity in the order of dorsiflexion, neutral, and plantar flexion (p<0.05). However, rectus femoris and gluteus maximus did not show significant muscle activity according to the ankle posture, but muscle activity was highest in the dorsiflexion posture. Conclusions: As a result of this study, muscle activity was high in the order of vastus medialis and vastus lateralis during ankle dorsiflexion. This is thought to be a major factor that can be applied in various ways in clinical practice according to the ankle angle when treating PFPS patients.