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

Jeong, Dawoon; Hwangbo, Gak

doi:10.20540/jiaptr.2020.11.1.1969

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

Journal of international academy of physical therapy research, v.11 no.1, 2020년, pp.1969 - 1974

Jeong, Dawoon (Department of Physical Therapy, Daegu University) , Hwangbo, Gak (Department of Physical Therapy, Daegu University)

Abstract ▼ AI-Helper

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). 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.

주제어

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문제 정의

¹⁴ However, there are no studies on the proper exercise protocol in early stage rehabilitation and the effects of Q-setting with sensorimotor training on vastus medialis oblique and vastus lateralis muscle activations. Therefore, the purpose of this study is to compare the effects of Q-setting exercise with and without sensorimotor training on muscle activations in patients after partial meniscectomy. The hypothesis of this study is that the Q-setting exercise with and without sensorimotor training will have differences in muscle activations within group and between groups.
This includes not only deformation of the knee joint itself, such as Q-angle, but also other divisions, such as in the foot and hip joint. This study was conducted to compare the changes of VMO and VL activations and their activation ratio.

가설 설정

Therefore, the purpose of this study is to compare the effects of Q-setting exercise with and without sensorimotor training on muscle activations in patients after partial meniscectomy. The hypothesis of this study is that the Q-setting exercise with and without sensorimotor training will have differences in muscle activations within group and between groups.

제안 방법

Before starting the intervention, the muscle activations of the vastus medialis oblique (VMO) and vastus lateralis (VL) were measured in all subjects using electromyography (EMG), 2EM (4D-MT, Relive, Gimhae, Korea). Subjects were randomly divided into a Q-setting sensorimotor training group (QSMTG, n=10) and Q-setting exercise group (QSEG, n=10).
Subjects were randomly divided into a Q-setting sensorimotor training group (QSMTG, n=10) and Q-setting exercise group (QSEG, n=10).The intervention was conducted five days a week for two weeks. Muscle activations in all subjects were measured using the same method as the baseline assessment.
The ground electrode was attached at 2-3 cm below the knee on the same side. While the subjects remained pain-free in the sitting position, three repeated measurements were taken every five seconds, three times over the middle three seconds, excluding the first and last. The break time was ten seconds.

대상 데이터

The subjects of this study were 20 adults who had medial meniscectomy surgery before more than 3 days. The exclusion criteria were as follows: 1) those who had ligaments damage of the knee; 3) those who had previous orthopedic surgery except meniscectomy; 4) those who had inflammatory arthritis; 5) those who had severe pain and fever.

데이터처리

To confirm the differences in the vastus medialis oblique, vastus lateralis and ratio of vastus medialis oblique and vastus lateralis before and after each group exercise, a paired t-test was conducted. To confirm the differences between groups, independent t-test was conducted. The statistical significance level was set to α=.
Means and standard deviation of the general characteristics and variables of the subjects were calculated and Shapiro-wilks test was used for normality. To confirm the differences in the vastus medialis oblique, vastus lateralis and ratio of vastus medialis oblique and vastus lateralis before and after each group exercise, a paired t-test was conducted. To confirm the differences between groups, independent t-test was conducted.

이론/모형

0 ver for windows (SPSS Inc, Chicago, IL). Means and standard deviation of the general characteristics and variables of the subjects were calculated and Shapiro-wilks test was used for normality. To confirm the differences in the vastus medialis oblique, vastus lateralis and ratio of vastus medialis oblique and vastus lateralis before and after each group exercise, a paired t-test was conducted.

성능/효과

A study reported that the exercise using an unstable surface improved muscle strength and alignment of the lower extremities ¹⁸. Based on these results, the Q-setting exercise is regarded as a good method to improve VMO and VL activations, and the Q-setting exercises with sensorimotor training are more effective in increasing activations.
In conclusion, this study suggests that Q-setting exercise with sensorimotor training can be useful for normalizing the balance of VMO and VL activations after meniscectomy and can prevent possible pathological problems.
This study also found that while the ratio is within normal range, the VL activation has increased more than VMO activation. It is regarded that although the Q-setting exercise was focused on VMO, the whole muscles of the quadriceps femoris were involved in knee extension.

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

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

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가설 설정

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대상 데이터

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성능/효과

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