ArticleExperimental gerontology2020
Quadriceps muscle electromyography activity during physical activities and resistance exercise modes in younger and older adults.
Article in Experimental gerontology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.
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Who cites it
11 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Electrophysiological Signatures of Sarcopenia: A Systematic Review of sEMG Features, Fatigue Indices and AI-Based Classifiers.Sensors (Basel, Switzerland) · 2026Pooled it
- Impact of home-based squat training with two-depths on lower limb muscle parameters and physical functional tests in older adults.Scientific reports · 2021Trial
- Eccentric contraction duration in bodyweight resistance exercise training for changes in physical function and health parameters of older adults.European journal of applied physiology · 2026Article
- Musculoskeletal and physiological responses to vortex wave stimulation in older adults.The Journal of physiology · 2026Article
- Comparing kinematic and kinetic demands on the knee joint during selected physiotherapy exercises and activities of daily living.Technology and health care : official journal of the European Society for Engineering and Medicine · 2026Article
- Bed rest and endurance retraining alter persistent inward current estimates in young and older males.Frontiers in physiology · 2026Article
- Knee functional outcomes and quadriceps hypotrophy after ACL reconstruction: a prospective observational study.BMC sports science, medicine & rehabilitation · 2025Article
- Muscle Activation and Mobility After Robotic Total Knee Arthroplasty: Insights from Early Postoperative Recovery.Journal of clinical medicine · 2025Article
- Mitigating disuse-induced skeletal muscle atrophy in ageing: Resistance exercise as a critical countermeasure.Experimental physiology · 2024Review
- Reliability of MyotonPro in measuring the biomechanical properties of the quadriceps femoris muscle in people with different levels and types of motor preparation.Frontiers in sports and active living · 2024Article
- Comparative Study of Muscle Hardness during Water-Walking and Land-Walking Using Ultrasound Real-Time Tissue Elastography in Healthy Young People.Journal of clinical medicine · 2023Article
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Authors and funding
4 authors.
Funding
Abstract
backgroundUnderstanding the root cause of the age-related impairment in muscle adaptive remodelling with resistance exercise training (RET) and developing pragmatic and accessible resistance exercise for older adults, are essential research directives.
methodsWe sought to determine whether indices of quadriceps muscle EMG activity in response to different modes of RET and activities of daily living (ADL), differed between 15 healthy younger (25 ± 3 years) and 15 older (70 ± 5 years) adults. On four separate days, participants completed a maximal voluntary contraction (MVC) of the knee extensors, followed by a 15 m walking task, stair climbing task (i.e. ADL) and lower-limb RET through body-weight squats (BW-RET) and seated knee extensions on a machine (MN-RET) or via elastic bands (EB-RET). Surface quadriceps electromyography (EMG) was measured throughout all tasks to provide indirect estimates of changes in muscle activity.
resultsMVC was significantly greater in young vs. older adults (Young: 256 ± 72 vs. Old: 137 ± 48 N·m, P < 0.001). EMG activity during all exercise tasks was significantly higher in older vs. younger adults when expressed relative to maximal EMG achieved during MVC (P < 0.01, for all). In addition, relative quadriceps muscle EMG activity was significantly greater in EB-RET (Young: 20.3 ± 8.7 vs. Old: 37.0 ± 10.7%) and MN-RET (Young: 22.9 ± 10.3, vs. Old: 37.8 ± 10.8%) compared with BW-RET (Young: 8.6 ± 2.9 vs. Old: 27.0 ± 9.3%), in young and older adults (P < 0.001). However, there was no significant difference in quadriceps EMG between EB-RET and MN-RET (P > 0.05).
conclusionsIn conclusion, relative quadriceps muscle EMG activity was higher across a range of activities/exercise modes in older vs. younger adults. The similar quadriceps muscle EMG activity between EB-RET and MN-RET provides a platform for detailed investigation of the neuromuscular and muscle metabolic responses to such pragmatic forms of RET to strengthen the evidence-base for this mode of RET as a potential countermeasure to sarcopenia.
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