Reproducibility of electromyographic and mechanical parameters of the triceps surae during submaximal and maximal plantar flexions

Stutzig, Norman; Siebert, Tobias

doi:10.1002/mus.24767

Cited by 18 publications

(22 citation statements)

References 44 publications

(124 reference statements)

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“…They observed high to moderate reliability for PF MVC strength, PF maximal EMG activity, VAL, M max and H reflex. The reliability of neuromuscular parameters for PF over a period of two weeks was also reported by Stutzig & Siebert (2016) [ 17 ]. They revealed that a majority of the collected neuromuscular parameters (28 of 34) had moderate (ICC, 0.61–0.80) and substantial (ICC, 0.81–1.00) reliability, which led to the conclusion that these measurements are sufficiently consistent to be used in interventional studies.…”

Section: Introductionsupporting

confidence: 67%

“…The reliability between experimental sessions of PF neuromuscular tests has been previously investigated in the literature for some experimental approaches [ 11 – 17 ]. Clark et al (2007) [ 11 ] evaluated the reliability of a large number of PF neuromuscular measurements separated by a relatively long duration of time (4 weeks).…”

Section: Introductionmentioning

confidence: 99%

“…They revealed that a majority of the collected neuromuscular parameters (28 of 34) had moderate (ICC, 0.61–0.80) and substantial (ICC, 0.81–1.00) reliability, which led to the conclusion that these measurements are sufficiently consistent to be used in interventional studies. Clark et al (2007) [ 11 ] and Stutzig & Siebert (2016) [ 17 ] collected their measurements at a fixed knee and ankle angles, whereas neuromuscular assessments and their reliability during or between experimental sessions may be modified by changes in joint angles [ 12 , 18 – 25 ]. Indeed, PF MVC decreases with knee flexion or plantar flexion with no change in muscle activation [ 18 , 21 – 24 ], whereas the PF H max /M max appears to be lower when the ankle angle is greater than 90° [ 19 , 20 , 26 ].…”

Section: Introductionmentioning

confidence: 99%

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Effect of knee angle on neuromuscular assessment of plantar flexor muscles: A reliability study

et al. 2018

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IntroductionThis study aimed to determine the intra- and inter-session reliability of neuromuscular assessment of plantar flexor (PF) muscles at three knee angles.MethodsTwelve young adults were tested for three knee angles (90°, 30° and 0°) and at three time points separated by 1 hour (intra-session) and 7 days (inter-session). Electrical (H reflex, M wave) and mechanical (evoked and maximal voluntary torque, activation level) parameters were measured on the PF muscles. Intraclass correlation coefficients (ICC) and coefficients of variation were calculated to determine intra- and inter-session reliability.ResultsThe mechanical measurements presented excellent (ICC>0.75) intra- and inter-session reliabilities regardless of the knee angle considered. The reliability of electrical measurements was better for the 90° knee angle compared to the 0° and 30° angles.ConclusionsChanges in the knee angle may influence the reliability of neuromuscular assessments, which indicates the importance of considering the knee angle to collect consistent outcomes on the PF muscles.

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Section: Introductionsupporting

confidence: 67%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of knee angle on neuromuscular assessment of plantar flexor muscles: A reliability study

et al. 2018

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“…The reliability was lower for the MG, which may have contributed to the lack of BOLD differences between age groups. This may be explained by the ability to reliably recruit the MG. MG recruitment was reported to be lower during maximal effort compared to the SOL (7, 38). The ankle position, highly plantar flexed, may have also played a role as this is not the optimal angle for peak PF force.…”

Section: Discussionmentioning

confidence: 99%

Age Reduces Microvascular Function in the Leg Independent of Physical Activity

Tonson

Noble

Meyer

et al. 2017

Medicine &Amp; Science in Sports &Amp; Exercise

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The microvasculature is critical in the control of blood flow. Aging and reduced physical activity may both decrease microvascular function. Purpose The primary aim was to evaluate the influence of age on microvascular function in adults with similar physical activity levels (PA). Secondary aims were to assess the reliability of muscle functional MRI in older adults and the relationship between physical activity and microvascular function in older adults. Methods Microvascular BOLD responses were measured in young adults (YA, n=12, 21±1 (±SD) years old, PA=239±73×103 counts/day) and older adults (OA, n=12, 64±4 years old, PA=203±48×103 counts/day). Functional MR images (3T, echo planar blood-oxygen-level dependent (BOLD)), of the leg were acquired following brief (1s) maximal voluntary isometric contractions. Test-retest reliability of BOLD responses and the Pearson correlation between peak BOLD and PA was assessed in a group of older adults (OA-r) with a broad range of PA (66±5 years old, n=9, PA range = 54×103 count/day to 674×103 counts/day). Results Peak BOLD microvascular responses were reduced for OA compared to YA. OA peak BOLD was 27% lower in the soleus (OA: 3.3±0.8% vs. YA: 4.5±1.4% YA, p=0.017) and 40% lower in the anterior compartment (1.6±0.6% OA vs. 2.7±1.1% YA, p=0.006). Coefficient of variation was 8.6% and 11.8% for peak BOLD in the soleus and anterior compartment, respectively, with an intraclass correlation of 0.950 for both muscle regions. The correlation between peak BOLD and PA was r ≥ 0.715, p ≤ 0.030. Conclusions Aging was associated with reduced microvascular function in leg muscles, independent of physical activity. The findings also revealed good reliability for BOLD MRI in older adults for the soleus and anterior compartment muscles.

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“…However, it is unknown whether the pressure applied on the stimulation electrode influences the evoked potentials and the pain experienced by subjects. This methodological issue was rarely mentioned, suggesting that the investigators did not apply pressure on the stimulation electrode while eliciting the evoked potentials (Oya et al ., ; Pinar et al ., ; Tsuruike et al ., ; Behrens et al ., ; Mezzarane et al ., ; Stutzig & Siebert, ,b). In some studies, although pressure on the stimulation electrode was applied using adhesive tape and/or straps (Capaday & Stein, ; Duclay & Martin, ; Sefton et al ., ; Querry et al ., ; Cattagni et al ., ; Baudry et al ., ), the physiological rationale behind this manipulation was not specified.…”

Section: Introductionmentioning

confidence: 99%

H‐reflex and M‐wave recordings: effect of pressure application to the stimulation electrode on the assessment of evoked potentials and subject's discomfort

Cattagni

Merlet

Cornu

et al. 2017

Clin Physio Funct Imaging

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This study aimed to compare the effect of different types of pressure applied to the stimulation electrode on assessing the efficiency of Ia-α-motoneuron transmission of the soleus muscle and the associated discomfort using electrical nerve stimulation. Twelve healthy young adults participated in three experimental sessions (one for each knee angle). The amplitudes of the maximal Hoffmann reflex (H ) and motor potential (M ) were recorded from the soleus muscle at 0°, 30° and 90° knee angles (0° full extension) through three pressure applications to the stimulation electrode: no pressure, pressure with manual application and pressure using adhesive tape. The soleus H /M were calculated to assess the efficiency of Ia-α-motoneuron transmission during varied knee angles and pressure application to the stimulation electrode. At the stimulation intensity evoking soleus H and M , subjects were asked to orally provide a value between 'no discomfort' (0) and 'worst possible discomfort' (10). The application of pressure on the stimulation electrode, particularly using adhesive tape, decreased both the stimulation intensity needed to evoke an electrophysiological response and the associated self-reported discomfort (P<0·05), while the H /M remained constant. At the stimulation intensity evoking M , the electrical stimulation appeared to be more painful at 0° knee angle compared with 30° and 90° angles (P<0·01). To conclude, this study showed that a knee flexion and a pressure application to the stimulation electrode, especially using tape pressure, are recommended in the objective to reduce the patient/subjects' discomfort when eliciting evoked potentials on soleus muscle.

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Reproducibility of electromyographic and mechanical parameters of the triceps surae during submaximal and maximal plantar flexions

Abstract: The H-reflex during voluntary contraction of the LG should be considered with caution. Mechanical data on muscle activation level are reproducible. The reproducibility of neuromuscular parameters is sufficient for interventional studies.

Cited by 18 publications

References 44 publications

Effect of knee angle on neuromuscular assessment of plantar flexor muscles: A reliability study

Effect of knee angle on neuromuscular assessment of plantar flexor muscles: A reliability study

Age Reduces Microvascular Function in the Leg Independent of Physical Activity

H‐reflex and M‐wave recordings: effect of pressure application to the stimulation electrode on the assessment of evoked potentials and subject's discomfort

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