ArticleJournal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology2021
Intramuscular pressure of human tibialis anterior muscle detects age-related changes in muscle performance.
Article in Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed.
- Investigating the correlation between force output, strains, and pressure for active skeletal muscle contractions.Journal of the mechanical behavior of biomedical materials · 2026Article
- Echoes of Muscle Aging: The Emerging Role of Shear Wave Elastography in Sarcopenia Diagnosis.Diagnostics (Basel, Switzerland) · 2025Review
- Article
- Detecting age-related changes in skeletal muscle mechanics using ultrasound shear wave elastography.Scientific reports · 2023Article
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4 authors.
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Abstract
Intramuscular pressure (IMP) reflects forces produced by a muscle. Age is one of the determinants of skeletal muscle performance. The present study aimed to test whether IMP mirrors known age-related muscular changes. We simultaneously measured the tibialis anterior (TA) IMP, compound muscle action potential (CMAP), and ankle torque in thirteen older adults (60-80 years old) in vivo by applying different stimulation intensities and frequencies. We found significant positive correlations between the stimulation intensity and IMP and CMAP. Increasing stimulation frequency caused ankle torque and IMP to increase. The electromechanical delay (EMD) (36 ms) was longer than the onset of IMP (IMPD) (29 ms). Compared to the previously published data collected from young adults (21-40 years old) in identical conditions, the TA CMAP and IMP of older adults at maximum intensity of stimulation were 23.8% and 39.6% lower, respectively. For different stimulation frequencies, CMAP, IMP, as well as ankle torque of older adults were 20.5%, 24.2%, and 13.2% lower, respectively. Surprisingly, the EMD did not exhibit any difference between young and older adults and the IMPD was consistent with the EMD. Data supporting the hypotheses suggest that IMP measurement is an indicator of muscle performance in older adults.
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