Bi-modal recovery of quadriceps femoris muscle function after sustained maximum voluntary contraction at different muscle length

Skurvydas, Albertas; Masiulis, Nerijus; Stanislovaitis, Aleksas; Kamandulis, Sigitas

doi:10.3390/medicina44100098

Cited by 8 publications

(11 citation statements)

References 31 publications

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“…It is not known to what extent either contributes to the change in PT measured after the exercise bout ( Rassier and Macintosh, 2000 ). Several studies investigating the development of peripheral fatigue during prolonged ( Millet et al, 2002 ; Gauche et al, 2006 ) or short duration ( Skof and Strojnik, 2006 ; Gondin et al, 2006 ; Skurvydas et al, 2008 ) exercise however have performed the pre-exercise measurement in muscles that were not exposed to potentiation. Other studies have attempted to differentiate between potentiation and peripheral fatigue during exercise, but without measuring the maximal possible potentiation before exercise began ( Fowles and Green, 2003 ; Morana and Perrey, 2009 ).…”

Section: Introductionmentioning

confidence: 99%

Potentiation and Electrical Stimulus Frequency During Self-Paced Exercise and Recovery

Froyd

Beltrami

Jensen

et al. 2014

Journal of Human Kinetics

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The aim of this study was to investigate the effect of potentiation on stimulation-induced muscle function during and after an intense bout of self-paced dynamic exercise. Ten active subjects performed a time trial involving repetitive concentric extension-flexion of the right knee using a Biodex dynamometer. Electrical stimulation before and after a 5 s maximal isometric voluntary contraction was performed before the start of the time trial and immediately (< 5 s) after each 20% of the time trial as well as 1, 2, 4 and 8 min after time trial termination. Potentiation was observed before the time trial and as early as 1–2 min after the time trial, but no potentiation was detected during or immediately after the time trial for neither single or paired stimuli. At termination of the time trial, “potentiated” peak torque was significantly more reduced than “unpotentiated” peak torque for single stimulus (−65 ± 10% and −42 ± 18%, respectively) and paired stimuli at 100 Hz (−51 ± 10% and −33 ± 15%, respectively). Faster recovery for “potentiated” compared to “unpotentiated” peak torque indicate that potentiate peak torque measurements or delay the post-exercise measurements more than a few seconds, will underestimate peripheral fatigue. In conclusion, the potentiation after maximal contraction disappears during intense exercise. Whether the muscle is already potentiated during intense contraction or fatiguing mechanisms inhibits potentiation remains to be clarified.

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Section: Introductionmentioning

confidence: 99%

Potentiation and Electrical Stimulus Frequency During Self-Paced Exercise and Recovery

Froyd

Beltrami

Jensen

et al. 2014

Journal of Human Kinetics

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“…Firstly, we measured the torque of muscles performing dorsal fl exion and then plantar fl exion. We evoked the contractile force of muscles by 1-s train of electrical stimuli at 100 Hz and voltage of 150 V (Skurvydas et al, 2008) at eight ( Fig. 1) ankle angles with a 60 s pause between stimulations.…”

Section: Methodsmentioning

confidence: 99%

“…Data on the biomechanical peculiarities of lower extremities can be used not only for improving performance in sports, but also for injury prevention and rehabilitation. Muscular torque is the result of the applied force and the lever arm multiplication (Arnold et al, 2009), which magnitude depends on muscle length (i. e. angular position), contraction mode, angular velocity (Babault et al, 2003;Skurvydas et al, 2008) and central nervous system activation (Desbrosses et al, 2006).…”

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confidence: 99%

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Dependence of Muscle Torque of Ankle Plantar and Dorsal Flexors on Different Ankle Angles

Solianik¹,

Aleknavičiūtė²,

Andrijauskaitė³

et al. 2018

BJSHS

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Research background and hypothesis. There is much research information about the relationship between the knee joint angle and the quadriceps muscle torque (Mohamed et al., 2002), but still we lack evidence about the relationship between ankle angle and calf muscle torque. Research aim. The purpose of this research was to establish the dependence of maximal voluntary contraction (MVC) and electrical stimulation (ES)-evoked torque and calf muscle electrical activity (EMG) on different ankle plantar and dorsal ﬂ exion angles. We hypothesized that the calf muscle MVC and ES-evoked torque as well as muscle EMG amplitude would increase with increasing muscle length (i. . increasing ankle angle).Research methods. The subjects in the research were ten non-trained men. Calf plantar and dorsal ﬂ exors muscle ES and MVC torque were tested at eight different ankle angles (–25 o ; –15 o ; –5 o ; 0 o ; 15 o ; 25 o ; 35 o ; 45 o ) which were chosen in randomized sequence. The tibialis anterior, soleus, gastrocnemius lateralis and medialis muscle EMG were measured during muscle MVC.Research results. The results showed that the highest ES-evoked and MVC developed torque of plantar ﬂ exion muscles was at –25° ankle angle (149.1 ± 31.6 N·m and 207.8 ± 38.1 N·m, respectively), while the highest dorsal ﬂ exion MVC muscle torque was at 25° ankle angle (47.2 ± 8.1 N·m). However, dorsal ﬂ exion muscle MVC torque increased with the muscle length only until 25° ankle angle. Discussion and conclusions. Plantar flexion muscle electrical stimulation evoked and plantar / dorsal ﬂ exion muscle maximal voluntary contraction torques are highest at that ankle angle where muscle length is the longest.

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“…End exercise represented the first repeat of recovery. The initial MVC for each subject's calves and quadriceps muscles was determined before 31 P-MRS acquisition, measured by muscles' maximum load at rest according to Skurvydas's method [24]. The 31 P-MRS detection of working quadriceps and calves muscles took place on two different days within a week.…”

Section: P-mrs Acquisitionmentioning

confidence: 99%

Different energy transfer efficiencies and buffering capabilities in quadriceps and calves muscles with low-load isotonic exercise detected by dynamic localized phosphorus-31 magnetic resonance spectroscopy

Chen

Yao

et al. 2019

Chin J Acad Radiol

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Aim Our aim was to investigate if there are differences in mitochondrial energy metabolism in working quadriceps and calves muscles by dynamic localized phosphorus-31 magnetic resonance spectroscopy. Materials and methods Phosphate metabolites of muscles were detected while subjects were in a state of rest, during exercise and recovery. The phosphocreatine (PCr), inorganic phosphate (Pi), adenosine triphosphate (ATP), PCr/Pi, PCr/ATP, pH, work/energy cost ratio (WE) and oxidative capacity were compared between muscles. Results The quadriceps had larger volume, heavier exercise load, greater WE, lower PCr and Pi concentration than calves muscles at rest. The PCr/Pi ratio of both muscles exhibited a sharp decline during exercise. PCr/ATP also had a downtrend in during exercise. Meanwhile, PCr/ATP of quadriceps during exercise was lower than that of calves muscles. The ATP concentration and pH value of quadriceps were decreased in end exercise compared to rest. And our results indicated that quadriceps had higher energy transfer efficiency and relatively poor energy buffering capability than calves muscles. The change in log(PCr) could adopt a linear fit model for both muscles at recovery. Conclusion Quadriceps had higher energy transfer efficiency and relatively poor energy buffering capability than calves muscles in mitochondrial energy metabolism partially accounts for different fiber type compositions.

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Bi-modal recovery of quadriceps femoris muscle function after sustained maximum voluntary contraction at different muscle length

Cited by 8 publications

References 31 publications

Potentiation and Electrical Stimulus Frequency During Self-Paced Exercise and Recovery

Potentiation and Electrical Stimulus Frequency During Self-Paced Exercise and Recovery

Dependence of Muscle Torque of Ankle Plantar and Dorsal Flexors on Different Ankle Angles

Different energy transfer efficiencies and buffering capabilities in quadriceps and calves muscles with low-load isotonic exercise detected by dynamic localized phosphorus-31 magnetic resonance spectroscopy

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