At Oriems Fit Research Digest, we uncover real university research and translate it into plain English.
Every post always ends with a link to the original published study, so you can check the science yourself.
Today’s big question:
EMS vs TENS — which one is actually better?
For years, many people have assumed they are the same.
They are not.
And a 2023 randomized controlled trial may have just exposed the difference.
The Study That Compared Muscle Activation To Sensory Stimulation
Published in the Journal of Athletic Training (USA), researchers tested what happened after just one 15-minute session of:
-
NMES (Neuromuscular Electrical Muscle Stimulation)
vs -
Low-level TENS (used as sham control)
The participants?
46 adults aged 18–60 with flat or pronated feet.
They measured:
-
Foot strength
-
Arch stability (navicular drop)
-
Dynamic balance control
The Results Were Not Subtle
Foot Strength
NMES group: +0.9 N/kg
Control group: +0.2 N/kg
56.5% improved with NMES.
Only 21.7% improved with control.
Arch Stability
Navicular drop reduced by 1.4 mm in NMES group.
No meaningful change in control group.
69.6% responders vs 17.4%.
Multi-Outcome Improvement
78% of NMES participants improved in at least two measures.
Only 22% in control did.
So What’s The Real Difference?
TENS:
• Primarily sensory
• Designed for pain modulation
• Does not strongly contract muscle
EMS (NMES):
• Causes visible muscle contraction
• Recruits motor units
• Enhances neuromuscular activation
• Improves measurable force output
This study clearly showed that muscle contraction matters.
Not just sensation.
What Is EMS Good For?
Based on this and related research, EMS may:
• Improve muscle recruitment
• Enhance intrinsic foot muscle strength
• Support arch stability
• Improve balance control
• Assist injury prevention programs
TENS can help pain.
EMS improves function.
That is a critical distinction.
STUDY SUMMARY TABLE
| Category | Details |
|---|---|
| Full Study Title | Effects of a Single Electrical Stimulation Session on Foot Force Production, Foot Dome Stability, and Dynamic Postural Control |
| Authors | Romain Tourillon, Hugo Bothorel, Patrick O. McKeon, Boris Gojanovic, François Fourchet |
| Research Centres | University of Lyon (France), La Tour Hospital (Switzerland), Ithaca College (USA) |
| Study Country | Switzerland |
| Study Design | Randomized Controlled Clinical Trial |
| Participants | 46 adults (18–60 yrs) with static foot pronation |
| Intervention | 15-minute NMES session on intrinsic foot muscles |
| Control | Sham low-level TENS |
| Outcomes Measured | Foot strength, navicular drop, dynamic balance |
| Key Finding | 78% multi-outcome responders in NMES group |
| Published In | Journal of Athletic Training |
| Publisher Country | United States |
| DOI | https://doi.org/10.4085/1062-6050-0561.21 |
| Trial Registration | NCT04421794 |
| Sponsorship | University-based research, not commercial |
Like this research digest? 🧠📚
Real science. Simple language. Powerful discoveries.
If this surprised you… imagine what your friends will learn 👀✨
Don’t keep smart knowledge to yourself 🤝
Share it with someone who cares about strength, balance, and better recovery 💪🦶
Tap the link and explore the full study, podcast, and more hidden research 🔍🎙️
DISCLAIMER
This article is for educational purposes only and summarises published research.
It does not provide medical advice or therapeutic claims.
ORIEMS FIT products are not intended to diagnose, treat, cure, or prevent disease.
We do not claim endorsement by the study authors or institutions mentioned.
Always consult a qualified health professional before beginning any therapy.
