Comparison of the VMO/VL EMG Activity Ratio According to Resistance Condition in Partial Lunge Exercise

Nam, Ki-Seok

doi:10.18857/jkpt.2020.32.5.273

Cited by 2 publications

(2 citation statements)

References 21 publications

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“…7 Patella malt racking was considered to increase load on the joint cartilage, accelerating cartilage degeneration. 8 Specific exercises were recommended to restore the VMO/VL activation ratio, such as the partial lung exercise 9 , and sling-based closed kinetic knee extension exercise. 10 Moreover, malalignment of patellofemoral joint can disturb the balance of the nearby structures, including muscles, tendons and joints.…”

Section: Introductionmentioning

confidence: 99%

The effect of gender on vastus medialis oblique/vastus lateralis activation ratio during weight and non-weight bearing activities in recreationally subjects

Alaa Abd El Rheem Mohamed,

Marwan Mahmoud Aljohani,

Yasir Saad Alshehri

et al. 2023

J Pak Med Assoc

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Objective: To investigate the effect of gender on the activation ratio of vastus medialis oblique to vastus lateralis during straight leg raising and stepdown activities.Method: The cross-sectional study was conducted at the College of Medical Rehabilitation Sciences, Taibah University, Medina, Kingdom of Saudi Arabia, from September 2021 to March 2022, and comprised recreationally active subjects without knee pathology who were distributed in 2 gender-based groups. All the participants were subjected to straight leg raising and stepdown activities thrice and the average value of each activity was noted. The vastus medialis oblique and vastus lateralis electromyographic activity of the dominant limb was recorded using surface electromyographyduring the activities. The normalised value of the activation ratio of vastus medialis oblique to vastus lateralis levels was calculated. Data was analysed using SPSS 25.Results: Of the 60 subjects, there were 30(50%) males with mean age 30.00±5.91 years, mean height 167±5.63cm, mean body weight 66.76±6.14kg, and mean body mass index 23.97±3.02kg/m2. There were 30(50%) females with mean age 29.03±5.34 years, mean height 186±6.20cm, mean body weight 68.5±5.6 kg and mean body mass index 23.76±3.22 kg/m2. There was no significant difference in the normalized electromyography activities of the vastusmedialis oblique and vastus lateralis muscles between males and females (p>0.05). Also, no significant difference wasfound in the activation ratio between the genders (p>0.05).Conclusion: There were no gender-based differences in the activation ratio of vastus medialis oblique to vastus lateralisduring weight-bearing and non-weight-bearing activities.Keywords: Quadriceps muscle, Patellofemoral pain, Sex factors, Weight, Electromyography.

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Section: Introductionmentioning

confidence: 99%

The effect of gender on vastus medialis oblique/vastus lateralis activation ratio during weight and non-weight bearing activities in recreationally subjects

Alaa Abd El Rheem Mohamed,

Marwan Mahmoud Aljohani,

Yasir Saad Alshehri

et al. 2023

J Pak Med Assoc

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“…24,25,26) 2). 몸은 똑바로 세워 유지하여 양 발을 어깨 넓이보 다 살짝 넓게 벌리고, 팔짱을 낀 자세에서 얼굴을 정면으로 향한 상태로 실시하였으며(Figure 3), 28,29) 6). 넙다리곧은근은 양측 다리의 위앞엉덩 뼈가시와 무릎뼈 바닥의 중간 부분까지 길이를 재고 1/2 지점 을 체크하여 넙다리곧은근의 근두께를 측정하였다(Figure 7).…”

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The Effect of Squat Exercise and Functional Electrical Stimulation on the Muscle Thickness of Rectus Femoris according to Ankle Angle

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Purpose The aim of this study was to evaluate the muscle thickness of the rectus femoris during the application of squat exercises with functional electrical stimulation (FES), based on different ankle angles (toe in 10°, toe 0°, toe out 10°). Methods Twenty six healthy participants were assessed. The squats were performed with three different ankle angles. They were divided into two groups: Group 1, squats at three ankle angles, and Group 2, squats with FES while applying three ankle angles. Results There were statistically significant differences in muscle thickness variation between group 1 and group 2 and before and after the ankle angle variations in each group (p<0.05). Group 1 and 2 showed statistically significant differences at both toe in 10° and toe out 10°. Conclusion In both groups, the muscle thickness of the rectus femoris increased. This study suggests that performing squat exercises with a toe out 10°, along with FES, is recommended to enhance the effectiveness of the rectus femoris.

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Comparison of the VMO/VL EMG Activity Ratio According to Resistance Condition in Partial Lunge Exercise

Cited by 2 publications

References 21 publications

The effect of gender on vastus medialis oblique/vastus lateralis activation ratio during weight and non-weight bearing activities in recreationally subjects

The effect of gender on vastus medialis oblique/vastus lateralis activation ratio during weight and non-weight bearing activities in recreationally subjects

The Effect of Squat Exercise and Functional Electrical Stimulation on the Muscle Thickness of Rectus Femoris according to Ankle Angle

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