University of Erlangen- Nuremberg (2009)

The effect of whole body electrical stimulation on the resting metabolic rate, anthropometric and muscular parameters of older people. The Training and Electromyostimulation Trial

Aim of study
A substantial change in body composition, with an increase in abdominal body fat and a corresponding reduction in muscle mass, especially occurs in women after menopause. To counter this trend, whole body electromyostimulation training today stands out as an alternative to conventional muscle training featuring smaller orthopaedic and cardiac loads at a comparably low training volume. The goal of this pilot study was to establish the applicability and feasibility of EMS training for older people as well as detem1ine the effectiveness of this form of training on anthropometric, physiological and muscular parameters.

Results
The resting metabolic late showed significant reductions in the CG (-5.3%, p = 0. 038) and no changes (-0.2 %, p = 0.991) in the EMS group. Despite a medium effect size (ES: 0.62), mere tendencies without significant differences appeared between the EMS group and the CG (p = 0.065). The cumulative value for the skinfold thickness declined significantly in the EMS group (p = 0.001) by 8.6%, compared to a slight, insignificant increase in the control group (1.4%); a difference that tuned out to be statistically significant (p = .0001, ES: 1.37). Waist circumference as a criterion for abdominal adiposity fell in the EMS group significantly (p > 0.001) by -2.3 % (vs. CG: +1.0 %, p = 0.105). The corresponding intermediate group difference turned out to be significant (p = 0.001, ES: 1.64).

Conclusion
In summary, improvements in functional parameters such as maximum strength and speed have been demonstrated along with health-relevant effects on body composition. In addition, a high acceptance of EMS training in this population of well-trained, post-menopausal women was established. So, aside from its effectiveness, the practicability of this type of training seems assured.