Combined effects of fatigue and temperature manipulation on skeletal muscle electrical and mechanical characteristics during isometric contraction

Cè, Emiliano; Rampichini, Susanna; Agnello, Luca; Limonta, Eloisa; Veicsteinas, Arsenio; Esposito, Fabio

doi:10.1016/j.jelekin.2012.01.012

Cited by 6 publications

(5 citation statements)

References 45 publications

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“…The internal cooling of the muscles could not be measured in this study and cooling may have been greater in the TA and thus nerve conduction and the contraction process at sarcomere level may be more affected [ 2 , 6 , 7 , 23 ]. Furthermore, the common peroneal nerve that innervates the TA is very superficial and therefore quite exposed to the cold water which may result in lower conductibility [ 8 , 32 ] and thereby possible lesser force production in accordance with findings by Hsu and Stevenson [ 33 ]. Moreover, the TA has a muscle fiber length twice the length of GM, which allows for a more favorable force generation compared with the plantar flexors [ 34 ].…”

Section: Discussionmentioning

confidence: 55%

“…There are various sports and recreational activities both in water and land, where exposure to cold environments may affect power generation [ 3 ]. A recent study by Cè et al [ 8 ] showed that both fatigue and muscle cooling decreased nerve conduction velocity. Local vasoconstriction in tissues exposed to cold is likely to decrease oxygen extraction and impair the oxidative reactions [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

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Effects of Cooling on Ankle Muscle Strength, Electromyography, and Gait Ground Reaction Forces

Halder

Gao

Miller

2014

Journal of Sports Medicine

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The effects of cooling on neuromuscular function and performance during gait are not fully examined. The purpose of this study was to investigate the effects of local cooling for 20 min in cold water at 10°C in a climate chamber also at 10°C on maximal isometric force and electromyographic (EMG) activity of the lower leg muscles. Gait ground reaction forces (GRFs) were also assessed. Sixteen healthy university students participated in the within subject design experimental study. Isometric forces of the tibialis anterior (TA) and the gastrocnemius medialis (GM) were measured using a handheld dynamometer and the EMG was recorded using surface electrodes. Ground reaction forces during gait and the required coefficient of friction (RCOF) were recorded using a force plate. There was a significantly reduced isometric maximum force in the TA muscle (P < 0.001) after cooling. The mean EMG amplitude of GM muscle was increased after cooling (P < 0.003), indicating that fatigue was induced. We found no significant changes in the gait GRFs and RCOF on dry and level surface. These findings may indicate that local moderate cooling 20 min of 10°C cold water, may influence maximal muscle performance without affecting activities at sub-maximal effort.

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Section: Discussionmentioning

confidence: 55%

Section: Introductionmentioning

confidence: 99%

Effects of Cooling on Ankle Muscle Strength, Electromyography, and Gait Ground Reaction Forces

Halder

Gao

Miller

2014

Journal of Sports Medicine

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“…power) to a given electrophysiological excitation or descending voluntary drive (Feretti 1992;Oksa et al, 2002). This is widely attributed to reductions in muscle temperature (Bergh & Ekblom 1979a) which reduces contractile function due to slowed intramuscular energetics and peripheral nerve conduction velocities (Kossler et al 1987;Bigland Ritchie et al 1981;Bergh, 1980;Faulkner et al 1990;Sweitzer & Moss 1990;Feretti 1992;De Ruiter & De Haan 2000;Allen et al 2008;Racinais & Oksa, 2010;Cahill et al 2011;Cè et al 2012). Several studies report that action potential propagation, ATP hydrolysis, Ca 2+ handling and sensitively as well as cross-bridge force kinetics are adversely affected by lower tissue 3 temperatures (Kossler et al 1987;Sweitzer & Moss 1990;Mucke & Heuer 1989;Feretti 1992;Oksa et al 2002Cè et al 2012.…”

Section: Introductionmentioning

confidence: 99%

“…This is widely attributed to reductions in muscle temperature (Bergh & Ekblom 1979a) which reduces contractile function due to slowed intramuscular energetics and peripheral nerve conduction velocities (Kossler et al 1987;Bigland Ritchie et al 1981;Bergh, 1980;Faulkner et al 1990;Sweitzer & Moss 1990;Feretti 1992;De Ruiter & De Haan 2000;Allen et al 2008;Racinais & Oksa, 2010;Cahill et al 2011;Cè et al 2012). Several studies report that action potential propagation, ATP hydrolysis, Ca 2+ handling and sensitively as well as cross-bridge force kinetics are adversely affected by lower tissue 3 temperatures (Kossler et al 1987;Sweitzer & Moss 1990;Mucke & Heuer 1989;Feretti 1992;Oksa et al 2002Cè et al 2012. However, the slowing of mechanical processes, as well as efferent and afferent nerve conduction, occur independently of exercise (present during passive cold exposure), and thus may even serve to attenuate metabolite production, and/ or increase central drive, during prolonged isometric contractions (Ray et al 1997;Segal et al 1986;De Ruiter & De Haan 2000;Todd et al 2005;Allen et al 2008;Cahill et al 2011;Lloyd et al 2014).…”

Section: Introductionmentioning

confidence: 99%

The interactive effect of cooling and hypoxia on forearm fatigue development

Lloyd

Havenith

2015

Eur J Appl Physiol

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“…The thermal rise induces lower cardiac output that directly affects blood flow to the muscle and alters contraction events [26]. The response to hypothermia alters the mechanics of the contraction by decreasing the maximum force and the rate of propagation of the potential action of motor end-plate [27]. Assessment of knowing the muscular response to hypoxia with heat or cold is necessary because various types of exercises are performed at moderate altitudes of between 2000 and 3000 m (11-13% FiO 2 ) and extreme temperatures.…”

Section: Additional Stimulimentioning

confidence: 99%

Electromyography: A Simple and Accessible Tool to Assess Physical Performance and Health during Hypoxia Training. A Systematic Review

et al. 2020

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Hypoxia causes reduced partial pressure of oxygen in arterial blood and induces adaptations in skeletal muscle that may affect individuals’ physical performance and muscular health. These muscular changes are detectable and quantifiable by electromyography (EMG), an instrument that assesses electrical activity during active contraction at rest. EMG is a relatively simple and accessible technique for all patients, one that can show the degree of the sensory and motor functions because it provides information about the status of the peripheral nerves and muscles. The main goal of this review is to evaluate the scientific evidence of EMG as an instrument for monitoring different responses of skeletal muscles subjected to external stimuli such as hypoxia and physical activity. A structured search was conducted following the Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA) guidelines in Medline/PubMed, Scielo, Google Scholar, Web of Science, and Cochrane Library Plus. The search included articles published in the last 25 years until May 2020 and was restricted to English- and Spanish-language publications. As such, investigators identified nine articles that met the search criteria. The results determined that EMG was able to detect muscle fatigue from changes in the frequency spectrum. When a muscle was fatigued, high frequency components decreased and low frequency components increased. In other studies, EMG determined muscle activation increased during exercise by recruiting motor units and by increasing the intensity of muscle contractions. Finally, it was also possible to calculate the mean quadriceps quadratic activity used to obtain an image of muscle activation. In conclusion, EMG offers a suitable tool for monitoring the different skeletal muscle responses and has sufficient sensitivity to detect hypoxia-induced muscle changes produced by hypoxic stimuli. Moreover, EMG enhances an extension of physical examination and tests motor-system integrity.

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Combined effects of fatigue and temperature manipulation on skeletal muscle electrical and mechanical characteristics during isometric contraction

Cited by 6 publications

References 45 publications

Effects of Cooling on Ankle Muscle Strength, Electromyography, and Gait Ground Reaction Forces

Effects of Cooling on Ankle Muscle Strength, Electromyography, and Gait Ground Reaction Forces

The interactive effect of cooling and hypoxia on forearm fatigue development

Electromyography: A Simple and Accessible Tool to Assess Physical Performance and Health during Hypoxia Training. A Systematic Review

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