Neuromuscular recruitment strategies of the vastus lateralis according to sex

Y Guo, EJ Jones, TB Inns, IA Ely, DW Stashuk… - Acta …, 2022 - Wiley Online Library
Aim Despite males typically exhibiting greater muscle strength and fatigability than females,
it remains unclear if there are sex‐based differences in neuromuscular recruitment …

Sex‐related differences in motor unit behavior are influenced by myosin heavy chain during high‐but not moderate‐intensity contractions

AA Olmos, AJ Sterczala, ME Parra… - Acta …, 2023 - Wiley Online Library
Aims Motor unit recruitment and firing rate patterns of the vastus lateralis (VL) have not been
compared between sexes during moderate‐and high‐intensity contraction intensities …

Muscular strength and power are correlated with motor unit action potential amplitudes, but not myosin heavy chain isoforms in sedentary males and females

TJ Herda, MA Trevino, AJ Sterczala, JD Miller… - Journal of …, 2019 - Elsevier
It remains unclear if the sizes of higher-threshold motor units (MU) are associated with
muscular strength and power. Therefore, the purpose of this study was to examine sex …

Sex‐related differences in muscle size explained by amplitudes of higher‐threshold motor unit action potentials and muscle fibre typing

MA Trevino, AJ Sterczala, JD Miller, ME Wray… - Acta …, 2019 - Wiley Online Library
Aim To investigate the relationships between motor unit action potential amplitudes
(MUAPAMP), muscle cross‐sectional area (mCSA) and composition (mEI), per cent myosin …

Vastus lateralis muscle tissue composition and motor unit properties in chronically endurance-trained vs. sedentary women

HL Dimmick, JD Miller, AJ Sterczala… - European Journal of …, 2018 - Springer
This study examined motor unit (MU) amplitudes (AP AMPS) and firing rates during
moderate-intensity contractions and muscle cross-sectional area (mCSA) and echo intensity …

Characteristics of motor unit recruitment in boys and men at maximal and submaximal force levels

E Chalchat, E Piponnier, B Bontemps, V Julian… - Experimental Brain …, 2019 - Springer
The aim of this study was to compare voluntary activation (VA) and motor units (MU)
recruitment patterns between boys and men at different contraction levels of the knee …

Changes in vastus lateralis fibre cross‐sectional area, pennation angle and fascicle length do not predict changes in muscle cross‐sectional area

BA Ruple, PHC Mesquita, JS Godwin… - Experimental …, 2022 - Wiley Online Library
New Findings What is the central question of this study? Do changes in myofibre cross‐
sectional area, pennation angle and fascicle length predict vastus lateralis whole‐muscle …

Effects of fatigue on motor unit firing rate versus recruitment threshold relationships

MS Stock, TW Beck, JM Defreitas - Muscle & nerve, 2012 - Wiley Online Library
Introduction: The purpose of this study was to examine the influence of fatigue on the
average firing rate versus recruitment threshold relationships for the vastus lateralis (VL) and …

Lifelong exercise is associated with more homogeneous motor unit potential features across deep and superficial areas of vastus lateralis

EJ Jones, J Piasecki, A Ireland, DW Stashuk… - GeroScience, 2021 - Springer
Motor unit (MU) expansion enables rescue of denervated muscle fibres helping to
ameliorate age-related muscle atrophy, with evidence to suggest master athletes are more …

Sex-related differences in motor unit firing rates and action potential amplitudes of the first dorsal interosseous during high-, but not low-intensity contractions

ME Parra, AJ Sterczala, JD Miller, MA Trevino… - Experimental Brain …, 2020 - Springer
Despite ample evidence that females are weaker and possess smaller muscle cross-
sectional areas (CSAs) compared to males, it remains unclear if there are sex-related …