FES Training in Aging: interim results show statistically significant improvements in mobility and muscle fiber size

Submitted: 3 July 2013
Accepted: 3 July 2013
Published: 6 March 2012
Abstract Views: 1847
PDF: 1111
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Aging is a multifactorial process that is characterized by decline in muscle mass and performance. Several factors, including reduced exercise, poor nutrition and modified hormonal metabolism, are responsible for changes in the rates of protein synthesis and degradation that drive skeletal muscle mass reduction with a consequent decline of force generation and mobility functional performances. Seniors with normal life style were enrolled: two groups in Vienna (n=32) and two groups in Bratislava: (n=19). All subjects were healthy and declared not to have any specific physical/disease problems. The two Vienna groups of seniors exercised for 10 weeks with two different types of training (leg press at the hospital or home-based functional electrical stimulation, h-b FES). Demografic data (age, height and weight) were recorded before and after the training period and before and after the training period the patients were submitted to mobility functional analyses and muscle biopsies. The mobility functional analyses were: 1. gait speed (10m test fastest speed, in m/s); 2. time which the subject needed to rise from a chair for five times (5x Chair-Rise, in s); 3. Timed –Up-Go- Test, in s; 4. Stair-Test, in s; 5. isometric measurement of quadriceps force (Torque/kg, in Nm/kg); and 6. Dynamic Balance in mm. Preliminary analyses of muscle biopsies from quadriceps in some of the Vienna and Bratislava patients present morphometric results consistent with their functional behaviors. The statistically significant improvements in functional testings here reported demonstrates the effectiveness of h-b FES, and strongly support h-b FES, as a safe home-based method to improve contractility and performances of ageing muscles.

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Kern, H., Loefler, S., Hofer, C., Vogelauer, M., Burggraf, S., Grim-Stieger, M., Cvecka, J., Hamar, D., Sarabon, N., Protasi, F., Musarò, A., Sandri, M., Rossini, K., Carraro, U., & Zampieri, S. (2012). FES Training in Aging: interim results show statistically significant improvements in mobility and muscle fiber size. European Journal of Translational Myology, 22(1-2), 61–67. https://doi.org/10.4081/ejtm.2012.1794

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