The objective of this study was to test the hypothesis that neuromuscular fatigue influences the rate of torque development (RTD) in a similar manner to isometric torque. Nine men participated in this study and performed 5-min all-out isometric tests for knee extensors (KE) and plantar flexors (PF) muscles, to determine the end-test torque (ET) and the critical rate of torque development (critical RTD). Additionally, participants performed submaximal constant-torque tests to task failure for KE and PF muscles. Both maximal voluntary contraction and RTD exhibited hyperbolic behavior and reached an asymptote at the end of the 5-min all out isometric test with similar relative values (KE 29.5 ± 5.6% MVC and PF 50.9 ± 2.9% MVC and KE 25.1 ± 3.6 to 28.5 ± 4.4% RTD and PF 48.4 ± 6.5 to 52.4 ± 5.8% RTD). However, both % MVC and % RTD were statistically different between muscle groups (P < 0.05), even when normalized by muscle volume (P < 0.05). Torque and RTD after the constant-torque test were similar to the values of ET and critical RTD (P > 0.05), respectively. In this study, it was observed that neuromuscular fatigue affects RTD and torque similarly, with the magnitude of this effect varying according to the muscle size.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s00421-024-05647-4 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Research on muck conditioning for EPB shield tunnelling in composite formation.
Sci Rep
December 2024
School of Civil Engineering and Architecture, East China Jiaotong University, Nanchang, 330013, Jiangxi, People's Republic of China.
Compared with simple formations, EPB (earth pressure balance) shield tunnelling in composite formations encounters severe problems with muck conditioning and require improved muck conditioning technology to fulfil expectations for continuous and efficient excavation. In the Nanchang Metro Line 4 Project, a water-rich sand-argillaceous siltstone composite formation is encountered. With a high moisture content and complex composite formation ratio, it is quite difficult to determine the optimum muck conditioning scheme, and thus, muck spewing accidents frequently occur during the tunnelling process.
View Article and Find Full Text PDFEffects of Off-Season Heavy-Load Resistance Training on Lower Limb Mechanical Muscle Function and Physical Performance in Elite Female Team Handball Players.
J Funct Morphol Kinesiol
December 2024
Research Unit for Muscle Physiology and Biomechanics (MoB), Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, 5230 Odense, Denmark.
: Team handball involves a high number of rapid and forceful muscle actions. Progressive heavy-load resistance training is known to enhance mechanical muscle function; however, its transfer into functional performance in team handball athletes remains largely unknown. The current study aimed to analyze the effects of eight weeks undulating heavy-load resistance training on lower limb mechanical muscle function and sports-specific performance in elite female team handball players.
View Article and Find Full Text PDFChanges in H-reflex, V-wave and contractile properties of the plantar flexors following concurrent exercise sessions - the acute interference effect.
J Appl Physiol (1985)
December 2024
Neuromuscular Research Lab, Faculdade de Motricidade Humana, Universidade de Lisboa, Portugal, Estrada da Costa, 1499-002, Cruz Quebrada, Dafundo, Portugal.
The interaction between muscle strength and endurance impacts athletic performance. Integrating both modalities into concurrent exercise (CE) is challenging due to the interference effect. This study explored the acute effects of resistance-only (R), endurance-only (E) and CE sessions on voluntary muscle strength, evoked neurophysiological parameters and contractile properties of the plantar flexors.
View Article and Find Full Text PDFFootball (soccer) match-derived hamstring muscles residual fatigue can be monitored using early rate of torque development.
Eur J Appl Physiol
December 2024
Institut Nacional d'Educació Física de Catalunya (INEFC), Universitat de Barcelona (UB), 08038, Barcelona, Spain.
Purpose: The aim of this study was to determine whether a soccer match affects the rapid force-generating capacity of the hamstring muscles, given their key role in both horizontal ground reaction force production during sprint biomechanics, and in the deceleration of the shank during the late swing phase, where rapid force production is essential owing to time constraints. Therefore, the research objective was to determine soccer match-induced hamstrings residual fatigue and recovery through rate of torque development (RTD) and associated biochemical parameters.
Methods: The recovery kinetics of hamstrings RTD metrics by the 90°:20° test, together with serum biomarkers (creatine kinase, mitochondrial creatine kinase, transaminases, malondialdehyde, irisin), were assessed in 19 male, regional first-division soccer players (age = 20.
α-Ketoglutarate promotes autophagic activity under a peri-implant condition to enhance osseointegration of dental implant in rats with osteoporosis.
Connect Tissue Res
December 2024
Graduate School of Medical and Dental Sciences, Institute of Science Tokyo, Tokyo, Japan.
Aim: We aimed to investigate whether α-ketoglutarate (AKG) can promote autophagic activity under a peri-implant condition to enhance the osseointegration of dental implant in rats with osteoporosis (OP).
Methods: Con, Model and AKG groups were established for the random allocation of thirty rats ( = 10). Their bone metabolism indicators were measured.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!