Vastus lateralis oxygenation dynamics during maximal fatiguing concentric and eccentric isokinetic muscle actions

Denis, Romain; Bringard, Aurélien; Perrey, Stéphane

doi:10.1016/j.jelekin.2010.12.006

Cited by 27 publications

(20 citation statements)

References 51 publications

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“…In addition, the differences in muscle oxygenation between children and adults could be also attributed to different intramuscular pressures, related to the difference in torque level between boys and men. Indeed, a higher torque is generally associated with a higher intramuscular pressure and potentially a greater TSI decrease (45), as is observed in the present study in men compared to boys.…”

Section: Peripheral Fatiguesupporting

confidence: 78%

Effect of Muscle–Tendon Unit Length on Child–Adult Difference in Neuromuscular Fatigue

Piponnier

Martín

Chalchat

et al. 2019

Medicine &Amp; Science in Sports &Amp; Exercise

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Purpose: The purpose of this study was to compare the development and etiology of neuromuscular fatigue of the knee extensor muscles (KE) at different muscle-tendon unit (MTU) lengths during repeated maximal voluntary isometric contractions (MVIC) between boys and men.Methods: Twenty-two pre-pubertal boys (9-11 years) and 22 men (18-30 years) performed three KE fatigue protocols at short (SHORT), optimal (OPT) and long (LONG) MTU lengths, consisting of repeating 5-s MVIC interspersed with 5-s passive recovery periods until torque reached 60% of the initial MVIC torque. The etiology of neuromuscular fatigue was identified using non-invasive methods such as surface electromyography, near-infrared spectroscopy, magnetic nerve stimulation and twitch interpolation technique.Results: The number of repetitions was significantly lower in men at OPT (14.8±3.2) and LONG (15.8±5.8) than boys (39.7±18.4 and 29.5 ±10.2, respectively; p<0.001), while no difference was found at SHORT between both age groups (boys: 33.7±15.4, men: 40.9±14.2). At OPT and LONG boys showed a lower reduction in the single potentiated twitch (Qtwpot) and a greater decrease in the voluntary activation level (VA) than men. At SHORT, both populations displayed a moderate Qtwpot decrement and a significant VA reduction (p<0.001). The differences in maximal torque between boys and men were almost twice greater at OPT (223.9 N.m) than at SHORT (123.3 N.m) and LONG (136.5 N.m). Conclusion:The differences in neuromuscular fatigue between children and adults are dependent on MTU length. Differences in maximal torque could underpin differences in neuromuscular fatigue between children and adults at OPT and SHORT. However, at LONG these differences do not seem to be explained by differences in maximal torque. The origins of this specific effect of MTU length remain to be determined.

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Section: Peripheral Fatiguesupporting

confidence: 78%

Effect of Muscle–Tendon Unit Length on Child–Adult Difference in Neuromuscular Fatigue

Piponnier

Martín

Chalchat

et al. 2019

Medicine &Amp; Science in Sports &Amp; Exercise

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“…Indeed, it has been suggested that a higher torque is associated with a higher intramuscular pressure (42). However, a higher intramuscular pressure can induce a greater decrease of TSI (11). In the present study, men developed a higher absolute torque than boys, thereby inducing a higher intramuscular pressure and potentially a greater TSI decrement.…”

Section: Discussionmentioning

confidence: 41%

Child-adult differences in neuromuscular fatigue are muscle dependent

Piponnier

Martín

Bontemps

et al. 2018

Journal of Applied Physiology

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The aim of this study was to compare the development and etiology of neuromuscular fatigue of the knee extensor (KE) and plantar flexor (PF) muscles during repeated maximal voluntary isometric contractions (MVIC) between children and adults. Twenty-one prepubertal boys (9-11 years) and 24 men (18-30 years) performed two fatigue protocols consisting in a repetition of 5-s isometric MVIC of the KE or PF muscles interspersed with 5-s passive recovery periods until MVIC reached 60% of its initial value. The etiology of neuromuscular fatigue of the KE and PF muscles was investigated by means of non-invasive methods such as the surface electromyography, single and doublet magnetic stimulation, twitch interpolation technique and NIRS. The number of repetitions performed was significantly lower in men (15.4 ± 3.8) than boys (38.7 ± 18.8) for the KE fatigue test. In contrast, no significant difference was found for the PF muscles between boys and men (12.1 ± 4.9 and 13.8 ± 4.9 repetitions, respectively). Boys displayed a lower reduction in potentiated twitch torque, low-frequency fatigue and muscle oxygenation than men whatever the muscle group considered. In contrast, voluntary activation level and normalized EMG data decreased to a greater extent in boys than men for both muscle groups. To conclude, boys experienced less peripheral and more central fatigue during repeated MVICs than men whatever the muscle group considered. However, child-adult differences in neuromuscular fatigue were muscle-dependent since boys fatigued similarly to men with the PF muscles and to a lower extent with the KE muscles than men.

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“…This suggests increased systemic peripheral vascular resistance compared to CON, and likely explains why stroke volume did not rise as the exercise continued but was finally lower compared to CON (increased afterload). This has not been reported in previous studies probably due to the short duration of the exercise bouts (6 to 20 min; [10,11,20]). That is, protocols may not have been long enough to delay the stroke volume increase as in the present study.…”

Section: Discussioncontrasting

confidence: 57%

“…Indeed, previous studies have focused on changes occurring during maximal exhaustive contractions, and have shown a lower tissue oxygenation index during ECC compared to CON [10]; studies have also looked at when delayed onset muscle soreness occurs after ECC exercise. In this context, the results are contradictory since, for example, prolonged (up to 6 days) alterations in muscle oxygenation occurred after 70 maximal ECC actions [2] but no changes were observed after 30 min of high-intensity cycling ECC exercise [33].…”

Section: Introductionmentioning

confidence: 99%

Muscle Oxygenation Responses to Low-intensity Steady Rate Concentric and Eccentric Cycling

Rakobowchuk

Isacco²,

Ritter³

et al. 2018

Int J Sports Med

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Muscle deoxygenation responses provide information about the training impulse of an exercise session enabling adaptation to be predicted. Our aim was to investigate muscle oxygenation profiles during prolonged low-intensity eccentric and concentric cycling. Twelve healthy men performed two 45-min exercise sessions of concentric (CON) and eccentric (ECC) cycling, matched for the same heart rate at the start of each session. Mechanical power output during ECC was ~2.5 times that of CON (210±40 W vs. 82±16 W). Oxygen uptake, blood lactate, cardiac output and systolic arterial pressure responses did not differ between exercises. Heart rate was similar at 5 min of each exercise bout but progressively increased during ECC and was higher at 15, 30 and 45 min of ECC compared to CON (+10 bpm), with a trend for a lower stroke volume. Diastolic and mean blood pressures were higher during ECC. No significant differences were observed in muscle oxygenation profiles. Muscle oxygenation responses during prolonged low-intensity exercise were not affected by the type of muscle action at the same metabolic demand and cardiac output.

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Vastus lateralis oxygenation dynamics during maximal fatiguing concentric and eccentric isokinetic muscle actions

Cited by 27 publications

References 51 publications

Effect of Muscle–Tendon Unit Length on Child–Adult Difference in Neuromuscular Fatigue

Effect of Muscle–Tendon Unit Length on Child–Adult Difference in Neuromuscular Fatigue

Child-adult differences in neuromuscular fatigue are muscle dependent

Muscle Oxygenation Responses to Low-intensity Steady Rate Concentric and Eccentric Cycling

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