Plantar Flexor Strength Training With Home-Based Neuromuscular Electrical Stimulation Improves Limits of Postural Stability in Older Adults

2020 ◽  
Vol 17 (6) ◽  
pp. 657-661 ◽  
Author(s):  
Antoine Langeard ◽  
Lucile Bigot ◽  
Gilles Loggia ◽  
Nathalie Chastan ◽  
Gaëlle Quarck ◽  
...  
Keyword(s):  
Older Adults ◽  
Electrical Stimulation ◽  
Muscle Strength ◽  
Neuromuscular Electrical Stimulation ◽  
Training Group ◽  
Strength Increase ◽  
Plantar Flexor ◽  
Limits Of Stability ◽  
Home Based ◽  
Flexor Strength

Background: The study aimed to determine whether improved muscle strength after 12 weeks of neuromuscular electrical stimulation (NMES) of plantar and dorsiflexors could result in better limits of stability in older adults. Methods: Twenty-seven participants were divided into a control group and a neuromuscular home-based training group. The training group performed a 3-month long NMES training of both plantar and dorsiflexors. Ankle flexor strength and limits of stability were measured. A mediation analysis was conducted to determine whether the NMES effect on the limits of stability was mediated by increased strength. Results: The NMES training increased plantar flexor strength (+47%; β = 0.217, P = .02), and this increase predicted the anterior limits of stability improvement (+27%; β = 0.527, P = .02). The effect of the NMES on the limits of stability was fully mediated by the plantar flexor strength increase (indirect effect: β = 0.1146; 95% confidence interval, 0.020–0.240). Conclusion: It seems that NMES improves the limits of stability through its positive effect on muscle strength. NMES may be utilized in fall-prevention programs.

scholarly journals Decreased Muscle Strength Relates to Self-Reported Stooping, Crouching, or Kneeling Difficulty in Older Adults

2010 ◽  
Vol 90 (1) ◽  
pp. 67-74 ◽  
Author(s):  
Manuel E. Hernandez ◽  
Allon Goldberg ◽  
Neil B. Alexander
Keyword(s):  
Older Adults ◽  
Muscle Strength ◽  
Fall Risk ◽  
Knee Extensor ◽  
Community Dwelling ◽  
Functional Mobility ◽  
Plantar Flexor ◽  
Cross Sectional ◽  
Muscle Groups ◽  
Flexor Strength

Background Bending down and kneeling are fundamental tasks of daily living, yet nearly a quarter of older adults report having difficulty performing or being unable to perform these movements. Older adults with stooping, crouching, or kneeling (SCK) difficulty have demonstrated an increased fall risk. Strength (force-generating capacity) measures may be useful for determining both SCK difficulty and fall risk. Objective The purposes of this study were: (1) to examine muscle strength differences in older adults with and without SCK difficulty and (2) to examine the relative contributions of trunk and leg muscle strength to SCK difficulty. Design This was a cross-sectional observational study. Methods Community-dwelling older adults (age [X̅±SD]=75.5±6.0 years) with SCK difficulty (n=27) or without SCK difficulty (n=21) were tested for leg and trunk strength and functional mobility. Isometric strength at the trunk, hip, knee, and ankle also was normalized by body weight and height. Results Compared with older adults with no SCK difficulty, those with SCK difficulty had significant decreases in normalized trunk extensor, knee extensor, and ankle dorsiflexor and plantar-flexor strength. In 2 separate multivariate analyses, raw ankle plantar-flexor strength (odds ratio [OR]=0.97, 95% confidence interval [CI]=0.95–0.99) and normalized knee extensor strength (OR=0.61, 95% CI=0.44–0.82) were significantly associated with SCK difficulty. Stooping, crouching, and kneeling difficulty also correlated with measures of functional balance and falls. Limitations Although muscle groups that were key to rising from SCK were examined, there are other muscle groups that may contribute to safe SCK performance. Conclusions Decreased muscle strength, particularly when normalized for body size, predicts SCK difficulty. These data emphasize the importance of strength measurement at multiple levels in predicting self-reported functional impairment.

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

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]

scholarly journals The Benefits of Neuromuscular Electrical Stimulation in the Muscular and Functional Capacity of Patients With Liver Cirrhosis: Protocol for a Randomized Clinical Trial

2018 ◽  
Vol 11 ◽  
pp. 117955221881183
Author(s):  
Carolina Luana de Mello ◽  
Thaís Martins Albanaz da Conceição ◽  
Tarcila Dal Pont ◽  
Catherine Corrêa Peruzzolo ◽  
Mariana Nunes Lúcio ◽  
...  
Keyword(s):  
Electrical Stimulation ◽  
Pulmonary Function ◽  
Functional Capacity ◽  
Neuromuscular Electrical Stimulation ◽  
Rectus Femoris ◽  
Training Group ◽  
Functional Independence ◽  
Peripheral Muscle ◽  
Ultrasound Evaluation ◽  
Daily Physical Activities

Cirrhosis causes systemic and metabolic changes that culminate in various complications, such as compromised pulmonary function, ascites, hepatic encephalopathy, weight loss, and muscle weakness with significant physical function limitations. Our aim is to evaluate the effects of training with neuromuscular electrical stimulation (NMES) on the muscular and functional capacity of patients with cirrhosis classified as Child-Pugh B and C. A total of 72 patients diagnosed with cirrhosis will be recruited and randomized to perform an NMES protocol for 50 minutes, 3 times a week, for 4 weeks. The evaluations will be performed at the beginning and after 12 sessions, and patients will be submitted to a pulmonary function test, an ultrasound evaluation of the rectus femoris, an evaluation of peripheral muscle strength, a submaximal exercise capacity test associated with an evaluation of peripheral tissue oxygenation, a quality of life evaluation, and orientation about monitoring daily physical activities. The evaluators and patients will be blinded to the allocation of the groups. Training Group will be treated with the following parameters: frequency of 50 Hz, pulse width of 400 μs, rise and fall times of 2 s, and on:off 1:1; Sham Group: 5 Hz, 100 μs, on:off 1:3. The data will be analyzed using the principles of the intention to treat. This study provides health professionals with information on the benefits of this intervention. In this way, we believe that the results of this study could stimulate the use of NMES as a way of rehabilitating patients with more severe cirrhosis, with the objective of improving these patients’ functional independence.

Effect of Multicomponent Home-Based Training on Gait and Muscle Strength Performance in Older Adults With Hip Fracture

2021 ◽  
Vol 102 (10) ◽  
pp. e3
Author(s):  
Mei Huang ◽  
Douglas Pizac ◽  
Ann Gruber-Baldini ◽  
Denise Orwig ◽  
Marc C. Hochberg ◽  
...  
Keyword(s):  
Older Adults ◽  
Hip Fracture ◽  
Muscle Strength ◽  
Strength Performance ◽  
Home Based
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