Neuromuscular fatigability amplitude and aetiology are interrelated across muscles

Chartogne, M.; Rahmani, Abderrahmane; Nicolon, Lucie; Jubeau, Marc; Morel, Baptiste

doi:10.1113/ep088682

Cited by 14 publications

(11 citation statements)

References 38 publications

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“…Indicators of central fatigue development have been found at maximal and near-maximal work rates(Bigland-Ritchie et al 1978;Yoon et al 2007). Although %VA was not significantly different in men or women in the current study, individual responses showed a wide range in central fatigue development across exercise intensities Chartogne et al (2020). found a negative correlation between central fatigue and peripheral fatigue development during 5-minute repeated MVCs(Chartogne et al 2020).…”

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confidence: 54%

“…Although %VA was not significantly different in men or women in the current study, individual responses showed a wide range in central fatigue development across exercise intensities Chartogne et al (2020). found a negative correlation between central fatigue and peripheral fatigue development during 5-minute repeated MVCs(Chartogne et al 2020). During severe-intensity exercise, however,Burnley et al (2012)…”

contrasting

confidence: 49%

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Neuromuscular recovery from severe- and extreme-intensity exercise in men and women

Alexander

Hammer

Didier

et al. 2022

Appl. Physiol. Nutr. Metab.

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Maximal voluntary contraction force (MVC), potentiated twitch force (Qpot), and voluntary activation (%VA) recover to baseline within 90s following extreme-intensity exercise. However, methodological limitations masked important recovery kinetics. We hypothesized reductions in MVC, Qpot, and %VA at task failure following extreme-intensity exercise would be less than following severe-intensity exercise, and Qpot and MVC following extreme-intensity exercise would show significant recovery within 120s but remain depressed following severe-intensity exercise. Twelve subjects (6 men) completed two severe-intensity (40, 50%MVC) and two extreme-intensity (70, 80%MVC) isometric knee-extension exercise bouts to task failure (Tlim). Neuromuscular function was measured at baseline, Tlim, and through 150s of recovery. Each intensity significantly reduced MVC and Qpot compared to baseline. MVC was greater at T¬lim (p<0.01) and at 150s of recovery (p=0.004) following exercise at 80%MVC compared to severe-intensity exercise. Partial recovery of MVC and Qpot were detected within 150s following Tlim for each exercise intensity; Qpot recovered to baseline values within 150s of recovery following exercise at 80%MVC. No differences in %VA were detected pre- to post-exercise or across recovery for any intensity. Although further analysis showed sex-specific differences in MVC and Qpot, future studies should closely examine sex-dependent responses to extreme-intensity exercise. It is clear, however, that these data reinforce that mechanisms limiting exercise tolerance during extreme-intensity exercise recover quickly. NOVELTY: •Severe- and extreme-intensity exercise cause independent responses in fatigue accumulation and the subsequent recovery time courses. •Recovery of MVC and Qpot occurs much faster following extreme-intensity exercise in both men and women.

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contrasting

confidence: 54%

contrasting

confidence: 49%

Neuromuscular recovery from severe- and extreme-intensity exercise in men and women

Alexander

Hammer

Didier

et al. 2022

Appl. Physiol. Nutr. Metab.

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“…Moreover, the interrelation in peripheral fatigue between muscles might be limited to those with similar fiber type proportion (42), which is not the case for quadriceps and hamstring (6,7). For central fatigue, no correlation was found between hamstring and quadriceps, which is consistent with a previous study comparing fatigue in plantar flexors and finger flexors (43). In conclusion, although neuromuscular fatigue research focusing on hamstring is scarce compared with quadriceps or calf muscles (44), there is a need to investigate specifically hamstring muscles fatigue.…”

Section: Discussionsupporting

confidence: 92%

Exercise-Induced Fatigue in Hamstring versus Quadriceps Muscles and Consequences on the Torque–Duration Relationship in Men

Alphonse

Hucteau

Mallard

et al. 2022

Medicine &Amp; Science in Sports &Amp; Exercise

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PurposeThe present study investigated the mechanisms of neuromuscular fatigue in quadriceps and hamstring muscles and its consequences on the torque–duration relationship.MethodsTwelve healthy men performed a 5-min all-out exercise (3-s contraction, 2-s relaxation) with either quadriceps or hamstring muscles on separate days. Central fatigue and peripheral fatigue were quantified via changes in pre- to postexercise voluntary activation (VA) and potentiated twitch (PTw) torque evoked by supramaximal electrical stimulation, respectively. Critical torque was determined as the mean torque of the last six contractions, whereas W′ was calculated as the torque impulse done above critical torque.ResultsAfter exercise, maximal voluntary contraction (MVC) decreased to a greater magnitude (P < 0.001) in quadriceps (−67% ± 9%) compared with hamstring (−51% ± 10%). ∆PTw was also greater in quadriceps compared with hamstring (−69% ± 15% vs 55% ± 10%, P < 0.01), whereas central fatigue only developed in quadriceps (∆VA, −25% ± 28%). Hamstring demonstrated reduced critical torque compared with quadriceps (60 ± 12 vs 97 ± 26 N·m, P < 0.001) as well as drastically lower W′ (1001 ± 696 vs 8111 ± 2073 N·m·s, P < 0.001). No correlation was found between quadriceps and hamstring for any index of neuromuscular fatigue (∆MVC, ∆PTw, or ∆VA).ConclusionsThese findings revealed that hamstring presented different etiology and magnitude of neuromuscular fatigue compared with quadriceps. The absence of correlation observed between quadriceps and hamstring fatigue parameters (∆MVC, ∆PTw, or ∆VA) suggests no interrelation in fatigue etiology between these two muscle groups within individuals and, therefore, highlights the need to investigate specifically hamstring muscle fatigue.

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“…The magnitude of neuromuscular fatigue-also referred to as muscle fatigue (Gandevia, 2001) or neuromuscular fatigability (Chartogne et al, 2020)-is universally evaluated as the exercise-induced decline in the isometric maximal voluntary contraction force (hereafter abbreviated as MVF) of a muscle/muscle group. In this context, pre-to post-fatigue percent declines in knee extension MVF ranging from 8 to 34% have been reported for a multitude of exercise types of different duration and intensity (Millet and Lepers, 2004).…”

Section: Introductionmentioning

confidence: 99%

Rate of Force Development as an Indicator of Neuromuscular Fatigue: A Scoping Review

D’Emanuele

Maffiuletti

Tarperi

et al. 2021

Front. Hum. Neurosci.

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Because rate of force development (RFD) is an emerging outcome measure for the assessment of neuromuscular function in unfatigued conditions, and it represents a valid alternative/complement to the classical evaluation of pure maximal strength, this scoping review aimed to map the available evidence regarding RFD as an indicator of neuromuscular fatigue. Thus, following a general overview of the main studies published on this topic, we arbitrarily compared the amount of neuromuscular fatigue between the “gold standard” measure (maximal voluntary force, MVF) and peak, early (≤100 ms) and late (>100 ms) RFD. Seventy full-text articles were included in the review. The most-common fatiguing exercises were resistance exercises (37% of the studies), endurance exercises/locomotor activities (23%), isokinetic contractions (17%), and simulated/real sport situations (13%). The most widely tested tasks were knee extension (60%) and plantar flexion (10%). The reason (i.e., rationale) for evaluating RFD was lacking in 36% of the studies. On average, the amount of fatigue for MVF (−19%) was comparable to late RFD (−19%) but lower compared to both peak RFD (−25%) and early RFD (−23%). Even if the rationale for evaluating RFD in the fatigued state was often lacking and the specificity between test task and fatiguing exercise characteristics was not always respected in the included studies, RFD seems to be a valid indicator of neuromuscular fatigue. Based on our arbitrary analyses, peak RFD and early phase RFD appear even to be more sensitive to quantify neuromuscular fatigue than MVF and late phase RFD.

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Neuromuscular fatigability amplitude and aetiology are interrelated across muscles

Cited by 14 publications

References 38 publications

Neuromuscular recovery from severe- and extreme-intensity exercise in men and women

Neuromuscular recovery from severe- and extreme-intensity exercise in men and women

Exercise-Induced Fatigue in Hamstring versus Quadriceps Muscles and Consequences on the Torque–Duration Relationship in Men

Rate of Force Development as an Indicator of Neuromuscular Fatigue: A Scoping Review

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