Electrical Muscle Stimulation Boosts Strength and Mass

Updated June 15, 2025

Adding ​electrical muscle stimulation (NMES) to‌ your workout​ routine‌ may considerably improve muscle mass and⁤ strength, according to a new study. ‍Sudip Bajpeyi, a professor at the University of Texas⁤ at El Paso (UTEP), led a meta-analysis ⁤exploring the benefits of using NMES during resistance training.

The meta-analysis, published in the European Journal of Applied Physiology, combined‌ results from over a dozen⁢ studies.The findings indicate that incorporating NMES with resistance exercises yields better results than resistance training alone. NMES devices, readily available on the market,‌ use electrical currents to stimulate muscle contractions.

Bajpeyi’s team analyzed research where participants performed exercises like bench presses and squats while ‍using NMES. The studies compared muscle mass and strength⁤ gains between those using electrical stimulators and those⁣ who did not. Training periods ‌ranged from two to 16 weeks, with longer durations showing more significant improvements.

Under normal conditions, the brain activates muscles. NMES mimics this process by delivering external electrical currents to the nerves, causing involuntary muscle contractions, Bajpeyi said.

Bajpeyi directs the Metabolic Nutrition and Exercise Research (MiNER) lab at UTEP. His team investigates how‌ NMES and other‍ interventions can improve physical and ‌metabolic health. Currently, with funding from the National Institutes⁤ of Health, Bajpeyi is⁤ studying how NMES might regulate​ blood glucose levels and ⁣reduce ‌the risk of type 2 diabetes.

⁤ “Exercise is medicine, but ⁣not everyone is able or willing to engage in conventional exercise,”⁢ Bajpeyi said. “NMES has great potential for improving metabolic health by building muscle mass, which can help the body ⁤process‌ blood glucose more effectively.”

What’s next

Bajpeyi’s forthcoming ⁣study results will further ‍explore the​ potential of NMES in managing blood glucose levels.