ArticlePhysiological reports2018
Effects of fatiguing, submaximal high- versus low-torque isometric exercise on motor unit recruitment and firing behavior.
Article in Physiological reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed.
- Quercetin ingestion alters motor unit behavior and enhances improvement in muscle strength following resistance training in older adults: a randomized, double-blind, controlled trial.European journal of nutrition · 2025Trial
- Differential training benefits and motor unit remodeling in wrist force precision tasks following high and low load blood flow restriction exercises under volume-matched conditions.Journal of neuroengineering and rehabilitation · 2024Trial
- Resistance priming strategies in professional Spanish soccer: A survey study into the practices and perceptions of strength and conditioning coaches.Biology of sport · 2026Article
- The influence of high-load and combined high- and low-load resistance training on electromyographic behavior during an absolute muscular endurance task.European journal of applied physiology · 2025Article
- Effects of Neuromuscular Priming with Spinal Cord Transcutaneous Stimulation on Lower Limb Motor Performance in Humans: A Randomized Crossover Sham-Controlled Trial.Journal of clinical medicine · 2025Article
- Article
- A comparison of techniques for verifying the accuracy of precision decomposition-derived relationships between motor unit firing rates and recruitment thresholds from surface EMG signals.Experimental brain research · 2023Article
- Fiber-Type-Specific Hypertrophy with the Use of Low-Load Blood Flow Restriction Resistance Training: A Systematic Review.Journal of functional morphology and kinesiology · 2023Review
- Postoperative Rehabilitation and Return to Sport Following Multiligament Knee Reconstruction.Arthroscopy, sports medicine, and rehabilitation · 2022Article
- Increases in motor unit action potential amplitudes are related to muscle hypertrophy following eight weeks of high-intensity exercise training in females.European journal of sport science · 2021Article
- Motor unit action potential amplitude during low torque fatiguing contractions versus high torque non-fatiguing contractions: a multilevel analysis.European journal of applied physiology · 2021Article
- Loading Recommendations for Muscle Strength, Hypertrophy, and Local Endurance: A Re-Examination of the Repetition Continuum.Sports (Basel, Switzerland) · 2021Review
- Training-Induced Acute Neuromuscular Responses to Military Specific Test during a Six-Month Military Operation.International journal of environmental research and public health · 2020Article
- Effects of fatiguing, submaximal high- versus low-torque isometric exercise on motor unit recruitment and firing behavior.Physiological reports · 2018Article
Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The purpose of this investigation was to evaluate the effects of repeated, high- (HT: 70% MVIC) versus low-torque (LT: 30% MVIC) isometric exercise performed to failure on motor unit (MU) recruitment and firing behavior of the vastus lateralis. Eighteen resistance-trained males (23.1 ± 3.8 years) completed familiarization, followed by separate experimental sessions in which they completed either HT or LT exercise to failure in random order. LT exercise resulted in a greater time to task failure and a more dramatic decline in the muscle's force capacity, but the total work completed was similar for HT and LT exercise. An examination of the firing trains from 4670 MUs recorded during exercise revealed that firing rates generally increased during HT and LT exercise, but were higher during HT than LT exercise. Furthermore, recruitment thresholds (RT) did not significantly change during HT exercise, whereas the RT of the smallest MUs increased and the RT for the moderate to large MUs decreased during LT exercise. Both HT and LT exercise resulted in the recruitment of additional higher threshold MUs in order to maintain torque production. However, throughout exercise, HT required the recruitment of larger MUs than did LT exercise. In a few cases, however, MUs were recruited by individuals during LT exercise that were similar in size and original (pre) RT to those detected during HT exercise. Thus, the ability to achieve full MU recruitment during LT exercise may be dependent on the subject. Consequently, our data emphasize the task and subject dependency of muscle fatigue.
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