ArticleScientific reports2020
Effects of knee flexor submaximal isometric contraction until exhaustion on semitendinosus and biceps femoris long head shear modulus in healthy individuals.
Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Associations Between Neuromuscular Fatigue, Anxiety, and Peripheral Biomarkers of Neuronal Injury, Inflammation, and Mitochondrial Dysfunction in Treatment-Naïve Relapsing-Remitting Multiple Sclerosis.Brain and behavior · 2026Article
- Changes in hamstrings' active stiffness during fatigue tasks are modulated by contraction duration rather than intensity.Scientific reports · 2024Article
- Effect of hyperthermia on simulated muscle activation in female when crossing obstacle.Scientific reports · 2024Article
- Effects of repeated sprinting on hamstring shear modulus pattern and knee flexor neuromuscular parameters.Scientific reports · 2023Article
- Fatigue-induced changes in hamstrings' active muscle stiffness: effect of contraction type and implications for strain injuries.European journal of applied physiology · 2023Article
- Calculating sample entropy from isometric torque signals: methodological considerations and recommendations.Frontiers in physiology · 2023Article
- Hamstrings mechanical properties profiling in football players of different competitive levels and positions after a repeated sprint protocol.Frontiers in physiology · 2023Article
- The Effects of Isometric Fatigue on Trunk Muscle Stiffness: Implications for Shear-Wave Elastography Measurements.Sensors (Basel, Switzerland) · 2022Article
- Isotonic and Isometric Exercise Interventions Improve the Hamstring Muscles' Strength and Flexibility: A Narrative Review.Healthcare (Basel, Switzerland) · 2022Review
- Regional Differences in Biceps Femoris Long Head Stiffness during Isometric Knee Flexion.Journal of functional morphology and kinesiology · 2021Article
- Article
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Authors and funding
9 authors.
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No grant is acknowledged in the PubMed record.
Abstract
This study examined whether a knee flexor isometric contraction at 20% of maximal voluntary isometric contraction until exhaustion would alter the biceps femoris long head (BFlh) and semitendinosus (ST) active stiffness, assessed using ultrasound-based shear wave elastography. Twelve healthy individuals participated in 2 sessions separated by 7 days. Time to exhaustion was similar in both sessions (day 1: 443.8 ± 192.5 s; day 2: 474.6 ± 131.7 s; p = 0.323). At the start of the fatigue task, the ST showed greater active stiffness than the BFlh (p < 0.001), with no differences between days (p = 0.08). The ST active stiffness then decreased from 40% of the task time to exhaustion (- 2.2 to - 13.3%, p = 0.027) until the end of the task (- 16.1 to - 22.9%, p = 0.012), while no significant changes were noted in the BFlh (p = 0.771). Immediately after the fatigue task, a decrease in active stiffness was observed in the ST (- 11.8 to - 17.8%, p < 0.001), but not in the BFlh (p = 0.551). Results were consistent between the 2 testing sessions (p = 0.07-0.959). The present results indicate that fatigue alters the hamstring active stiffness pattern.
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