Gender Differences in the Activity and Ratio of Vastus Medialis Oblique and Vastus Lateralis Muscles during Drop Landing

Kim, Min Hee; Yoo, Won Gyu; Yi, Chung Hwi

doi:10.1589/jpts.21.325

Cited by 11 publications

(17 citation statements)

References 19 publications

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“…The EMG sampling rate was 1,000 Hz and band-pass filtered from 13–430 Hz, notch filtered at 60 Hz, and reduction filtered. Filtered signals were chosen from 10–20 seconds, and EMG signals were quantified as the root mean square 9 , 10 ) .…”

Section: Methodsmentioning

confidence: 99%

Effects of neuromuscular training on knee joint stability after anterior cruciate ligament reconstruction

2015

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[Purpose] This study examined the effects of neuromuscular training on knee joint stability after anterior cruciate ligament reconstruction. [Subjects and Methods] The subjects were 16 adults who underwent arthroscopic anterior cruciate reconstruction and neuromuscular training. The Lysholm scale was used to assess functional disorders on the affected knee joint. A KT-2000 arthrometer was used to measure anterior displacement of the tibia against the femur. Surface electromyography was used to detect the muscle activation of the vastus medialis oblique, vastus lateralis, biceps femoris, and semitendinosus before and after neuromuscular training. [Results] There was significant relaxation in tibial anterior displacement of the affected and sound sides in the supine position before neuromuscular training. Furthermore, the difference in the tibial anterior displacement of the affected knee joints in the standing position was reduced after neuromuscular training. Moreover, the variation of the muscle activation evoked higher muscle activation of the vastus medialis oblique, vastus lateralis, biceps femoris, and semitendinosus. [Conclusion] Neuromuscular training may improve functional joint stability in patients with orthopedic musculoskeletal injuries in the postoperative period.

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Section: Methodsmentioning

confidence: 99%

Effects of neuromuscular training on knee joint stability after anterior cruciate ligament reconstruction

2015

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“…Earlier studies have reported that among patients with patellofemoral pain syndrome, the muscle activity ratio of the VMO was remarkably lower than that of people without this condition. These studies argue that selective strengthening of the VMO should be emphasized with the aim of establishing balance and stability in the quadriceps femoris muscle 5 , 6 ) . The lunge exercise is a close kinetic chain (CKC) exercise that strengthens the muscles of the lower limbs and is used for treatment of patellofemoral pain syndrome and its early rehabilitation.…”

Section: Introductionmentioning

confidence: 99%

Changes in lower limb muscle activity based on angle of ankle abduction during lunge exercise

Choi¹,

Lee

2017

J Phys Ther Sci

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[Purpose] This study compared the activity of the quadriceps femoris muscle according to the angle of ankle abduction during a lunge exercise. [Subjects and Methods] Fifteen male healthy volunteers participated in the study. All participants performed the lunge exercise with different angles of ankle abduction (0°, 20°, 40°, 60°). The activity of the rectus femoris (RF), vastus lateralis (VL) and vastus medialis oblique (VMO) muscles were recorded for the four angles by using a surface electromyography system. [Results] There were significant differences between the rectus femoris (RF), vastus lateralis (VL) and vastus medialis oblique (VMO) with every angle of the ankle joint. The most significantly increased muscle activity was evident in the vastus medialis oblique (VMO) when the ankle abduction was 60°. [Conclusion] These findings suggest that as the ankle abduction angle increases during the lunge exercise, the muscle activity of the quadriceps femoris muscle increases and this could be helpful in the selective muscle strengthening of the vastus medialis oblique muscle (VMO) with the ankle in the 60° abduction position.

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“…Imbalance of muscles around the knee can cause changes in the alignment of the knee joint1 ) . Therefore, to prevent knee injuries in females, improved muscle balance around the knee during dynamic motions such as landing and balanced strengthening of lower limb muscles are necessary.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, to prevent knee injuries in females, improved muscle balance around the knee during dynamic motions such as landing and balanced strengthening of lower limb muscles are necessary. Kim et al1 ) found kinematic differences in landing motions between male and female college students and reported that the valgus angles of females were more increased than those of males during a vertical landing motion. The decline squat exercise moves the line of gravity backwards and increases external momentum during extension in knee joints2 ) ; thus, the squat exercise on a decline board has had great effectiveness in reducing knee pain due to the selective strengthening of lower extremity muscles3 ) .…”

Section: Introductionmentioning

confidence: 99%

Effect of the single-leg, lateral oblique, decline squat exercise on sacroiliac joint pain with knee pain

Yoo

2016

J Phys Ther Sci

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[Purpose] This study investigated the effect of the single-leg, lateral oblique, decline squat exercise on sacroiliac joint pain with knee pain. [Subjects and Methods] A 39-year-old female had severe pain in the right medial buttock and right anterior knee. This study assessed the anterior pelvic tilt angle and pain provocation tests before and after single-leg, lateral oblique, decline squat exercise for 4 weeks. [Results] Following the course of exercise, the anterior pelvic tilt angles were increased, and the visual analog scale pain scores for both the right buttock and right knee were 2/10. [Conclusion] Single-leg, lateral oblique, decline squat exercise may be effective for treating SI joint pain with knee pain in females.

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Gender Differences in the Activity and Ratio of Vastus Medialis Oblique and Vastus Lateralis Muscles during Drop Landing

Cited by 11 publications

References 19 publications

Effects of neuromuscular training on knee joint stability after anterior cruciate ligament reconstruction

Effects of neuromuscular training on knee joint stability after anterior cruciate ligament reconstruction

Changes in lower limb muscle activity based on angle of ankle abduction during lunge exercise

Effect of the single-leg, lateral oblique, decline squat exercise on sacroiliac joint pain with knee pain

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