Dr John P. Porcari, Professor in Exercise and Sports Science at the University of Wisconsin-La Crosse. Results from this study showed that high intensity NMES can significantly increase abdominal strength and endurance compared to low intensity (control) stimulation. Both groups also observed improvements in body image and perception of abdominal muscle firmness and tone.

This study found that in comparison with a control group, both walking and walking+EMS groups had significant reductions in a number of body measures and improvements in self-perception measures. The improvements on both body measures and self-perceptions were greater for the walking+EMS condition

This study found that the use of the Slendertone belt significantly increased abdominal strength and endurance, decreased waist girth, and improved self-perceived abdominal firmness and tone.

This study found significant improvements in abdominal firmness, flatness and muscle tightness following use of the Slendertone Abdominal Training System while walking. Subjects in the treatment group reported that use of Slendertone while walking gave them a better workout than walking alone.

This study found improved psychometric measurements relating to improved body image and well-being among a treatment group of Slendertone users. The study also revealed improvements in perceived firmness, flatness, and strength. Objective improvements in abdominal strength, and flatness, were also seen.

This study found that 4 weeks of abdominal muscle training using NMES resulted in statistically significant improvements in abdominal strength and static and dynamic abdominal endurance. The significant increases recorded in the muscle stimulation group support the hypothesis that NMES can cause an increase in the strength and endurance of the abdominal musculature.