Effects of quadriceps muscle neuromuscular electrical stimulation in living donor liver transplant recipients: phase-II single-blinded randomized controlled trial

Objective: To evaluate the efficacy of neuromuscular electrical stimulation on quadriceps muscle strength and thickness in liver transplantation patients. Design: Phase-II, randomized, parallel-group, allocation-concealed, assessor-blinded, single-center controlled trial. Setting: Inpatient rehabilitation sector. Subjects: Patients following living donor liver transplantation. Interventions: The quadriceps muscle stimulation and the control groups received bilateral muscle electrical stimulation on the quadriceps and tibialis anterior muscles, respectively. Neuromuscular electrical stimulation sessions in both groups were conducted for 30 minutes per session, once per day for five weekdays over four weeks by a physical therapist. Main measures: Quadriceps muscle strength and quadriceps muscle thickness. Results: Neuromuscular electrical stimulation was applied to the quadriceps muscles group ( n = 23) or the tibialis anterior muscle in the control group ( n = 22). The decrease in quadriceps muscle thickness differed significantly between both groups on postoperative day 30 (median −3 vs −8, P < 0.01). The changes in predicted quadriceps strength and 6 minutes walking distance were not significantly different between groups (quadriceps strength median −12% vs −5%, P = 0.40; 6 minutes walking distance median −18 vs −21 m, P = 0.74). Conclusion: Neuromuscular electrical stimulation of the quadriceps muscle for liver transplantation recipients was able to maintain the quadriceps muscle thickness after surgery. Future larger scale studies are needed to consider the effectiveness of neuromuscular electrical stimulation and how to incorporate this intervention in the overall strategy of the physical therapy program.

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The Effect of NeuroMuscular Electrical Stimulation on Quadriceps Strength and Knee Function in Professional Soccer Players: Return to Sport after ACL Reconstruction

BioMed Research International ◽

10.1155/2013/802534 ◽

2013 ◽

Vol 2013 ◽

pp. 1-9 ◽

Cited By ~ 19

Author(s):

J. Taradaj ◽

T. Halski ◽

M. Kucharzewski ◽

K. Walewicz ◽

A. Smykla ◽

...

Keyword(s):

Electrical Stimulation ◽

Acl Reconstruction ◽

Neuromuscular Electrical Stimulation ◽

Exercise Program ◽

Return To Sport ◽

Quadriceps Muscle ◽

Quadriceps Strength ◽

Knee Function ◽

Soccer Players ◽

Professional Soccer

The aim of this study was to assess the clinical efficacy and safety of NMES program applied in male soccer players (after ACL reconstruction) on the quadriceps muscle. The 80 participants (NMES = 40, control = 40) received an exercise program, including three sessions weekly. The individuals in NMES group additionally received neuromuscular electrical stimulation procedures on both right and left quadriceps (biphasic symmetric rectangular pulses, frequency of impulses: 2500 Hz, and train of pulses frequency: 50 Hz) three times daily (3 hours of break between treatments), 3 days a week, for one month. The tensometry, muscle circumference, and goniometry pendulum test (follow-up after 1 and 3 months) were applied. The results of this study show that NMES (in presented parameters in experiment) is useful for strengthening the quadriceps muscle in soccer athletes. There is an evidence of the benefit of the NMES in restoring quadriceps muscle mass and strength of soccer players. In our study the neuromuscular electrical stimulation appeared to be safe for biomechanics of knee joint. The pathological changes in knee function were not observed. This trial is registered with Australian and New Zealand Clinical Trials RegistryACTRN12613001168741.

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The Effect of Adding Neuromuscular Electrical Stimulation with Endurance and Resistance Training on Exercise Capacity and Balance in Patients with Chronic Obstructive Pulmonary Disease: A Randomized Controlled Trial

Canadian Respiratory Journal ◽

10.1155/2020/9826084 ◽

2020 ◽

Vol 2020 ◽

pp. 1-9

Author(s):

Amal Acheche ◽

Marwa Mekki ◽

Thierry Paillard ◽

Zouhair Tabka ◽

Yassine Trabelsi ◽

...

Keyword(s):

Electrical Stimulation ◽

Resistance Training ◽

Center Of Pressure ◽

Controlled Trial ◽

Neuromuscular Electrical Stimulation ◽

Berg Balance Scale ◽

Voluntary Contraction ◽

Walking Distance ◽

Chronic Obstructive ◽

Eyes Closed

This study investigated the effectiveness of adding neuromuscular electrical stimulation (NMES) to endurance training (ET) and resistance training (RT) on exercise tolerance and balance in COPD patients. 42 patients were assigned randomly to the ET + RT + NMES group (n = 22) or ET + RT group (n = 20). Two training programs were performed including 72 sessions. The center of pressure (CoP) displacement in the mediolateral direction (CoPML), in the anteroposterior direction (CoPAP), and the center of pressure velocity (CoPV) were recorded using a stabilometric platform with eyes open (EO) and eyes closed (EC). Time up and go and Berg Balance Scale tests, 6-minute walking test (6MWT), and the maximal voluntary contraction (MVC) were measured before and after the intervention. The walking distance, the dyspnea, and the heart rate were improved after the training period ( p < 0.001 ) for both groups ( p < 0.05 ). The ET + RT + NMES group showed better improvement than the ET + RT group in terms of 6MWD. CoPML, CoPAP, and CoPV were significantly ( p < 0.001 ; p < 0.05 ; p < 0.001 , respectively) more improved in EO and EC conditions in the ET + RT + NMES group than the ET + RT group. BBS, TUG, and MVC values improved in both groups after the training ( p < 0.001 ). The performances in TUG and MVC tests were significantly greater in the ET + RT + NMES group than those in the ET + RT group ( p < 0.01 ; p < 0.001 , respectively). Combining NMES, RT, and ET improves balance in patients with COPD.

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The Effectiveness Of Quadriceps Strengthening Exercises Combined With Neuromuscular Electrical Stimulation on Patellofemoral Pain Syndrome

Orthopaedic Journal of Sports Medicine ◽

10.1177/2325967117s00107 ◽

2017 ◽

Vol 5 (2_suppl2) ◽

pp. 2325967117S0010

Author(s):

Sezen Karabörklü Argut ◽

Nilgün Türker ◽

Derya Çelik ◽

Önder İsmet Kılıçoğlu

Keyword(s):

Electrical Stimulation ◽

Muscle Strength ◽

Neuromuscular Electrical Stimulation ◽

Pain Syndrome ◽

Quadriceps Strength ◽

Patellofemoral Pain ◽

Group I ◽

Strengthening Exercises ◽

Group Ii ◽

And Function

Objective: The weakness of the quadriceps strength in patellofemoral pain syndrome (PFPS) is very evident. Therefore, quadriceps strengthening exercises are very important part of the rehabilitation program. Neuromuscular Electrical Stimulation (NMES) is considered one of the methods for increasing quadriceps muscle strength. To evaluate the effectiveness of combined NMES and strengthening exercises to improve the recovery of quadriceps strength and function in patients with PFPS. Methods: This study was planned as a randomized controlled pilot study. A total of 27 patients (mean age=38.9±10.8 years, range=20-60 years; 16 females) with PFPS were assessed and randomly assigned into 2 groups. Group I received a standard program (quadriceps strengthening, hip strengthening and hamstring stretching) and NMES combined with quadriceps strengthening exercises simultaneously. Group II received the same standard program without NMES. Both groups were enrolled 3 times per week for 40 minutes per day in 6 weeks. Patients were assessed at the baseline, 3 rd, 6th, and 12th weeks of treatment. Quadriceps strength was evaluated by isokinetic dynamometer. The range of motion at testing was set between 0 for extension to 90 for flexion. The test was performed at 60 degrees/sn and concentric maximum peak torque value was recorded. Kujala and Lysholm scores were used for functional assessments. The data were analyzed using the SPSS 20.0. Shapiro-Wilk test was used to assess the distribution of data. The changes in dependent variables before treatment, 3 rd, 6th, and 12th weeks were analyzed using a 2 by 4 mixed-model analysis of variance (ANOVA). Pairwise comparisons with paired t test were used to determine whether the Group I or Group II, has changed over time. An intention- to- treat analysis was performed to impute values for missing data. An alpha level of 0.05 was established. Results: The study was completed with 20 patients. Group I (n=10; mean age=39.4±8.5 years; 7 females) and group II (n=10; mean age=43.2±11.7 years; 5 females) had no differences in pre-operative measures (p>.05). There was significant improvements in within groups statistics of all parameters for both groups (p<.05). No differences in quadriceps strength, Kujala and Lysholm scores between groups were found at the different time points (F= 0.86; p = 0.12, F=0,001; p =0.97, F=0.12; p=0.73, respectively) Conclusion: NMES combined with quadriceps strengthening exercises has no additional effect on PFPS patients’ on muscle strength and function. When considering these results, we believe that there is no need to continue the study in progress. [Table: see text]

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Training-induced changes in muscle contraction patterns enhance exercise performance after short-term neuromuscular electrical stimulation

Isokinetics and Exercise Science ◽

10.3233/ies-202111 ◽

2020 ◽

Vol 28 (4) ◽

pp. 339-350

Author(s):

Gökhan Umutlu ◽

Nevzat Demirci ◽

Nasuh Evrim Acar

Keyword(s):

Electrical Stimulation ◽

Muscle Contraction ◽

Exercise Performance ◽

Controlled Trial ◽

Dynamic Control ◽

Neuromuscular Electrical Stimulation ◽

Interval Training ◽

Time To Exhaustion ◽

Muscle Strengthening ◽

The Individual

BACKGROUND: Neuromuscular electrical stimulation (NMES) is a complementary tool for therapeutic exercise for muscle strengthening and may potentially enhance exercise performance. OBJECTIVE: To determine whether high-intensity interval training (HIIT) and continuous aerobic training (CA) coupled with NMES enhance the changes in the eccentric/concentric muscle contraction patterns of hamstring and quadriceps. METHODS: Forty-five healthy sedentary male participants performed cycling training 3 times per week for 8 weeks combined with/without NMES performed at a load equivalent to 65% and 120% of IVO2max (intensity associated with the achievement of maximal oxygen uptake). Anthropometrics, blood lactate measurements, IVO2max, TLimVO2max (time-to-exhaustion) and isokinetic strength parameters were measured at baseline and post-training using a randomized controlled trial. RESULTS: The conventional hamstring-to-quadriceps-ratio (HQR: Hcon/Qcon) at 60∘/s and the Dynamic Control Ratio (DCR: Hecc/Qcon) at 180∘/s significantly increased both in the dominant (D) and non-dominant (ND) limb in the HIIT + NMES group (p< 0.05). There was a positive significant correlation between the individual changes in D HQR at 60∘/s and IVO2max (r= 0.94, p= 0.005) and the DCR at 180∘/s and TLimVO2max (r= 0.90, p= 0.015), respectively. CONCLUSIONS: The increases in the eccentric muscle contraction and DCR following HIIT + NMES seem to improve fatigue tolerance, cause less fatigue and oxidative stress on the lower limb during pedaling at high intensities.

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Ultrasonographic quantification of architectural response in tibialis anterior to neuromuscular electrical stimulation

Journal of Electromyography and Kinesiology ◽

10.1016/j.jelekin.2017.07.008 ◽

2017 ◽

Vol 36 ◽

pp. 90-95 ◽

Cited By ~ 2

Author(s):

Emilie Simoneau-Buessinger ◽

Sébastien Leteneur ◽

Alix Bisman ◽

François Gabrielli ◽

Jennifer Jakobi

Keyword(s):

Electrical Stimulation ◽

Tibialis Anterior ◽

Neuromuscular Electrical Stimulation

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Electromyographic and ultrasonographic evaluation of neuromuscular electrical stimulation training on the equine rectus abdominis muscle

Comparative Exercise Physiology ◽

10.3920/cep190004 ◽

2020 ◽

Vol 16 (2) ◽

pp. 87-100

Author(s):

T. Hernández-Fernández ◽

L. Gutiérrez-Cepeda ◽

J. López-Sanromán ◽

G. Manso-Díaz ◽

R. Cediel

Keyword(s):

Electrical Stimulation ◽

Muscle Force ◽

Neuromuscular Electrical Stimulation ◽

Muscle Thickness ◽

Muscular Contraction ◽

Rectus Abdominis ◽

Wilcoxon Test ◽

Median Frequency ◽

Rectus Abdominis Muscle ◽

Test Analysis

The current study aimed to determine the effects of neuromuscular electrical stimulation (NMES) on equine rectus abdominis using surface electromyography (sEMG) and ultrasonographic muscle thickness evaluation. Five horses were trained with NMES for 12 weeks; muscle thickness and sEMG evaluations were obtained before and after the training period. Three different tests were carried out for sEMG evaluations: Test A tried to elicit a voluntary maximal isometric contraction (VMIC); Test B used NMES to elicit a muscular contraction; and Test C used 1 ms repetitive electrical impulses to elicit a series of M-waves. Muscle strength was evaluated from the root mean square (RMS; Tests A and B) and peak to peak (PP; Test C) values obtained from the sEMG data. Measures related to amplitude (RMSa; RMSm; RMSa; PP) were normalised with their pre-training values for every muscle prior to statistical analysis, leading to values as a proportion of the initial value. The evaluation of muscle fatigue was performed using a Fourier test analysis of the frequency range, obtaining the median frequency (MF) for all tests. Muscle thickness (MT) was measured by ultrasound of left and right sides of the rectus abdominis. Data were analysed using non parametric test of Wilcoxon (Test A RMSa; Test A RMSm; Test B RMSa; Test B RMSm; Test C PP; MT; P<0.05) and t-test (Test A MF; Test B MF; Test C MF; P<0.05). Statistical differences were observed between baseline and trained horses. Muscle force increase following NMES training in Test B (RMSa 2.50±0.69; RMSm 2.59±0.76) and Test C (PP 5.20±1.76). Fatigue of the rectus abdominis decreased in Test A (168.33±55.19 vs 232.63±44.15 Hz) and Test C MF (187.93±20.76 vs 236.98±52.39 Hz), but not in Test B (363.98±45.48 vs 327.95±50.84 Hz). The difference in muscle thickness between the two groups was not significant (10.96±0.64; 11.78±0.79 mm). The results suggest that NMES training could be used as an effective method to increase muscle force and fatigue resistance of the rectus abdominis muscle in the horse.

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