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 …

Endurance training alters motor unit activation strategies for the vastus lateralis, yet sex-related differences and relationships with muscle size remain

SA Sontag, MA Trevino, TJ Herda, AJ Sterczala… - European Journal of …, 2021 - Springer
Purpose To examine the effects of 10 weeks of endurance cycling training on
mechanomyographic amplitude (MMG RMS)–torque relationships and muscle cross …

Effects of continuous cycling training on motor unit firing rates, input excitation, and myosin heavy chain of the vastus lateralis in sedentary females

MA Trevino, HL Dimmick, ME Parra… - Experimental Brain …, 2022 - Springer
This study examined the effects of continuous endurance training on motor unit (MU) mean
firing rates (MFR), percent myosin heavy chain (% MHC) isoforms, and muscle cross …

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 …

[HTML][HTML] The influence of chronic training status on the mechanical behavior of the vastus lateralis during repetitive trapezoidal contractions

AA Olmos, TJ Herda, SA Sontag… - … of Musculoskeletal & …, 2022 - ncbi.nlm.nih.gov
Objectives: To examine maximal strength and fatigability of the knee extensors, and
mechanomyographic amplitude (MMG RMS)–force relationships of the vastus lateralis (VL) …

Differences in the firing rate versus recruitment threshold relationships of the vastus lateralis in children ages 7–10 years and adults

ME Parra, JD Miller, AJ Sterczala, MA Trevino… - Human Movement …, 2020 - Elsevier
Motor unit (MU) firing rates of the vastus lateralis in children and adults were examined.
Seven healthy adult males (mean±SD, age= 21±2.6 yrs) and six healthy male children …

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 …

Preferential activation of the vastus medialis oblique, vastus lateralis, and hip adductor muscles during isometric exercises in females

D Zakaria, KL Harburn, JF Kramer - Journal of Orthopaedic & Sports …, 1997 - jospt.org
Disagreement exists as to whether the individual components of the quadriceps femoris can
be preferentially activated, ie., that one muscle component is activated to a greater degree of …

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 …

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 …