Effects of the slow speed-targeting squat exercise on the vastus medialis oblique/vastus lateralis muscle ratio
Three pages on PainSci cite Yoo 2015: 1. The Complete Guide to Patellofemoral Pain Syndrome 2. Patellofemoral Pain & the Vastus Medialis Myth 3. Taking out the trash: purging predatory journals from my bibliography
original abstract †Abstracts here may not perfectly match originals, for a variety of technical and practical reasons. Some abstacts are truncated for my purposes here, if they are particularly long-winded and unhelpful. I occasionally add clarifying notes. And I make some minor corrections.
PURPOSE: This study investigated the effects of the slow speed-targeting squat exercise on the vastus medialis oblique/vastus lateralis ratio.
SUBJECTS: Ten asymptomatic men were recruited.
METHODS: The EMG activities of the vastus medialis oblique and vastus lateralis muscles were recorded using surface electrodes. The subject performed the squat exercise under 3 different conditions.
RESULTS: The vastus medialis oblique/vastus lateralis ratio in condition 2 (1.5 ± 0.7) was significantly higher than that in conditions 1 and 3 (1.0 ± 0.5, 1.1 ± 0.8, respectively)
CONCLUSION: Therefore, an effectively slow movement speed is recommended for selective strengthening of vastus medialis oblique using a slow speed-targeting device that provides biofeedback.
related content
- “Activities of the Vastus Lateralis and Vastus Medialis Oblique Muscles during Squats on Different Surfaces,” Hyong et al, J Phys Ther Sci, 2013.
- “Analysis of vastus lateralis and vastus medialis oblique muscle activation during squat exercise with and without a variety of tools in normal adults,” Lee et al, J Phys Ther Sci, 2016.
- “The Effect of Altering Knee Position and Squat Depth on VMO:VL EMG Ratio During Squat Exercises,” Jaberzadeh et al, Physiother Res Int, 2016.
- “Muscle activation of vastus medialis obliquus and vastus lateralis during a dynamic leg press exercise with and without isometric hip adduction,” Peng et al, Physical Therapy in Sport, 2013.
- “The effect of closed-kinetic chain exercises and open-kinetic chain exercise on the muscle activity of vastus medialis oblique and vastus lateralis,” Irish et al, Journal of Strength & Conditioning Research, 2010.
This page is part of the PainScience BIBLIOGRAPHY, which contains plain language summaries of thousands of scientific papers & others sources. It’s like a highly specialized blog. A few highlights:
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- Topical glyceryl trinitrate (GTN) and eccentric exercises in the treatment of mid-portion achilles tendinopathy (the NEAT trial): a randomised double-blind placebo-controlled trial. Kirwan 2024 Br J Sports Med.
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- Cannabidiol (CBD) products for pain: ineffective, expensive, and with potential harms. Moore 2023 J Pain.