Comparison of Premodulated Interferential and Pulsed Current Electrical Stimulation in Prevention of Deep Muscle Atrophy in Rats.

Comparison of premodulated interferential and pulsed current electrical stimulation in prevention of deep muscle atrophy in rats.

Filed under: Rehab Centers

J Mol Histol. 2012 Dec 21;
Tanaka M, Hirayama Y, Fujita N, Fujino H

The goal of this study was to compare the effects of electrical stimulation using pulsed current (PC) and premodulated interferential current (IC) on prevention of muscle atrophy in the deep muscle layer of the calf. Rats were randomly divided into 3 treatment groups: control, hindlimb unloading for 2 weeks (HU), and HU plus electrical stimulation for 2 weeks. The animals in the electrical stimulation group received therapeutic stimulation of the left (PC) or right (IC) calf muscles twice a day during the unloading period. Animals undergoing HU for 2 weeks exhibited significant loss of muscle mass, decreased cross-sectional area (CSA) of muscle fibers, and increased expression of ubiquitinated proteins in the gastrocnemius and soleus muscles compared with control animals. Stimulation with PC attenuated the effects on the muscle mass, fiber CSA, and ubiquitinated proteins in the gastrocnemius muscle. However, PC stimulation failed to prevent atrophy of the deep layer of the gastrocnemius muscle and the soleus muscle. In contrast, stimulation with IC inhibited atrophy of both the gastrocnemius and soleus muscles. In addition, the IC protocol inhibited the HU-induced increase in ubiquitinated protein expression in both gastrocnemius and soleus muscles. These results suggest that electrical stimulation with IC is more effective than PC in preventing muscle atrophy in the deep layer of limb muscles.
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[Multimodal complex treatment in multiple sclerosis : Influence on motor performance and need of care.]

Filed under: Rehab Centers

Nervenarzt. 2012 Dec 23;
Ecker D, Mauch E, Sabolek M

BACKGROUND: The concept of multimodal complex treatment combines treatment by physicians with intensive conservative treatment. The therapy duration is often 14-21 days. Investigations showing the benefit of this treatment for multiple sclerosis patients are currently missing. PATIENTS AND METHODS: A total of 220 patient records were retrospectively analyzed with respect to the Barthel index, the expanded disability status scale (EDSS) score and early rehabilitation assessment (Frühreha-Assessment). Subgroup analysis was used to examine variations in clinical severity, age and disease duration. RESULTS: The motor subscore was improved (p?=?0.031) in the total sample. The subgroup analysis showed that in particular patients with an average disease duration (11-20 years) and age (41-60 years) showed the greatest benefits. In addition to the group of moderately affected patients the group of severely affected patients (Barthel index 36-64 and HubMed – rehab


Effects of ergonomic intervention on work-related upper extremity musculoskeletal disorders among computer workers: a randomized controlled trial.

Filed under: Rehab Centers

Int Arch Occup Environ Health. 2012 Dec 23;
Esmaeilzadeh S, Ozcan E, Capan N

PURPOSE: The aim of the study was to determine effects of ergonomic intervention on work-related upper extremity musculoskeletal disorders (WUEMSDs) among computer workers. METHODS: Four hundred computer workers answered a questionnaire on work-related upper extremity musculoskeletal symptoms (WUEMSS). Ninety-four subjects with WUEMSS using computers at least 3 h a day participated in a prospective, randomized controlled 6-month intervention. Body posture and workstation layouts were assessed by the Ergonomic Questionnaire. We used the Visual Analogue Scale to assess the intensity of WUEMSS. The Upper Extremity Function Scale was used to evaluate functional limitations at the neck and upper extremities. Health-related quality of life was assessed with the Short Form-36. After baseline assessment, those in the intervention group participated in a multicomponent ergonomic intervention program including a comprehensive ergonomic training consisting of two interactive sessions, an ergonomic training brochure, and workplace visits with workstation adjustments. Follow-up assessment was conducted after 6 months. RESULTS: In the intervention group, body posture (p < 0.001) and workstation layout (p = 0.002) improved over 6 months; furthermore, intensity (p < 0.001), duration (p < 0.001), and frequency (p = 0.009) of WUEMSS decreased significantly in the intervention group compared with the control group. Additionally, the functional status (p = 0.001), and physical (p < 0.001), and mental (p = 0.035) health-related quality of life improved significantly compared with the controls. There was no improvement of work day loss due to WUEMSS (p > 0.05). CONCLUSIONS: Ergonomic intervention programs may be effective in reducing ergonomic risk factors among computer workers and consequently in the secondary prevention of WUEMSDs.
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