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 …

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 …

The influence of myosin heavy chain isoform composition and training status on the patterns of responses for mechanomyographic amplitude versus isometric torque

TW Beck, TJ Housh, AC Fry, JT Cramer… - The Journal of …, 2008 - journals.lww.com
The purpose of this study was to examine the influence of myosin heavy chain (MHC)
isoform composition and training status on the mechanomyographic (MMG) amplitude …

The influence of myosin heavy chain isoform content on mechanical behavior of the vastus lateralis in vivo

MA Trevino, TJ Herda, AC Fry, PM Gallagher… - Journal of …, 2016 - Elsevier
This study examined correlations between type I percent myosin heavy chain isoform
content (% MHC) and mechanomyographic amplitude (MMG RMS) during isometric muscle …

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 …

Muscle phenotype is related to motor unit behavior of the vastus lateralis during maximal isometric contractions

RJ Colquhoun, MA Magrini, CT Haun… - Physiological …, 2018 - Wiley Online Library
Previous investigations have reported a relationship between skeletal muscle phenotype
and motor unit (MU) firing parameters during submaximal contractions. The purpose of the …

Sex differences in the detection of motor unit action potentials identified using high-density surface electromyography

CA Taylor, BH Kopicko, F Negro… - … of Electromyography and …, 2022 - Elsevier
Sex-related disparities in force production of humans have been widely observed. Previous
literature has attributed differences in peripheral traits, such as muscle size, to explain these …

Power output, mechanomyographic, and electromyographic responses to maximal, concentric, isokinetic muscle actions in men and women

JT Cramer, TJ Housh, JE WEIR… - The Journal of …, 2002 - journals.lww.com
The purpose of this study was to examine the responses of peak torque (PT), mean power
output (MP), mechanomyographic (MMG) and electromyographic (EMG) amplitudes, and …

[HTML][HTML] Sex-and fiber-type-related contractile properties in human single muscle fiber

Y Jeon, J Choi, HJ Kim, H Lee, JY Lim… - Journal of Exercise …, 2019 - ncbi.nlm.nih.gov
This study aimed to examine the distribution and contractile properties of single muscle fiber
sex/myosin heavy chain (MHC) type-related differences and to evaluate the correlation of …