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Erin Stern Works out at 4U Fitness with full body E-Fit electric muscle stimulation.

erin-stern-4u-fitness-ems-efit-workout-tampa-st-pete-florida

 

“I don’t mean to brag but… i just finished my 3 hour workout in 20 minutes ⚡️💪⚡️”

#4ufitness #efit #20minworkout

EMS research was proven to significantly increase an athlete’s endurance, stamina, fitness levels. In a 20-minute E-Fit training session, 350 different muscles are worked, contracting 36,000 times.

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