Research
Neural
Relative quadriceps muscle EMG activity was significantly greater in elastic band resistance exercise (EB-RET) and machine knee extensions (MN-RET) compared to body-weight squats (BW-RET) in both age groups (P < 0.001).
Incorporating EB-RET and MN-RET may enhance muscle activation in resistance training programs for both age groups.
StrongSupportsmedium confidence
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).
Why this rating
The claim is based on significant statistical differences observed in the study.
Source
Quadriceps muscle electromyography activity during physical activities and resistance exercise modes in younger and older adults
Ryan N. Marshall et al. · Experimental Gerontology · 2020
DOI 10.1016/j.exger.2020.110965
cross-sectional · n=30Cited 19×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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- Maximal voluntary contraction (MVC) of the knee extensors was significantly greater in younger adults (256 ± 72 N·m) compared to older adults (137 ± 48 N·m), P < 0.001.Strong
- Relative quadriceps muscle EMG activity was significantly higher in older adults compared to younger adults across all exercise tasks (P < 0.01).Strong
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