Why Is EMS Better Than TENS for Heel-Strike Pain?

person Savannah Martin
calendar_today Jan 04, 2026
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This article is part of the Oriems Fit Research Digest series.

In this series, we regularly share real scientific research related to electrical muscle stimulation (EMS), explained in very simple language.

Our goal is to spark curiosity, help people understand how the body moves, and encourage self-learning.

👉 At the end of every blog post, we provide links to the original research studies.
If you enjoy fact-checking, collecting studies, or reading full scientific papers, you can explore the original sources yourself. Many links include full PDFs.

The Main Question: Why is EMS better than TENS for heel-strike pain in plantar fasciitis?

Because EMS improves how the foot moves and absorbs force during walking, while TENS mainly affects pain sensation.

Heel-strike pain happens when the heel first hits the ground.
That moment depends on:

Muscle strength
Muscle timing
How force is absorbed through the foot

Pain alone is not the full problem.
Movement quality matters.

Why Heel-Strike Pain Is a Movement Problem

People with plantar fasciitis often:

Take shorter steps
Walk more slowly
Avoid putting weight on the heel
Change their walking pattern without realizing it

This increases stress on the foot with every step.

Fixing only pain signals does not change this pattern.

What This Study Looked At

Researchers compared two types of electrical stimulation in people with plantar fasciitis:

Standard electrical stimulation (similar to TENS)
Neuromuscular electrical stimulation (EMS / NMES)

The study lasted 4 weeks.

Researchers measured:

Step length
Stride length
Cadence (steps per minute)
Foot and ankle ability (FAAM score)

Who Was Studied?

30 adults with plantar fasciitis
Age range: 40–60 years
Both men and women
All had walking pain related to heel strike

Participants were split into two equal groups (15 each).

Key Findings (Numbers & Data)

Walking Improvements With EMS

After 4 weeks, the EMS group showed extremely significant improvements:

Stride length increased by ~40%
(from ~51 cm to ~72 cm)
Step length increased by ~35%
(from ~26 cm to ~35 cm)
Cadence increased by ~25%
(from ~79 to ~99 steps per minute)

All results showed p < 0.0001, meaning the chance results were random is extremely low.

The TENS-like group also improved, but consistently less across all measures.

What These Numbers Mean in Simple Terms

People using EMS:

Took longer, more confident steps
Walked faster and smoother
Reduced guarded walking patterns
Showed better foot control during heel contact

This directly relates to heel-strike pain, which happens during the first contact with the ground.

Why EMS Outperforms TENS for Heel-Strike Pain

1. EMS Activates Muscles, TENS Does Not

EMS causes muscles to contract and work
TENS mainly blocks pain signals

Heel-strike requires muscles to absorb impact.
EMS supports that process.

2. EMS Improves Force Absorption

Better stride length and cadence mean:

Less shock per step
More even weight distribution
Reduced overload on the heel

TENS does not change force distribution.

3. EMS Changes Walking Patterns

EMS improved functional movement, not just comfort.

This is why EMS showed:

Larger improvements
Stronger statistical results
Better gait mechanics

Why EMS Can Be Very Useful for People With Foot Pain

Based on this research, EMS may support:

Muscle engagement in the foot and ankle
Better walking rhythm
Improved confidence during movement
Reduced compensatory walking habits

This is especially relevant for people whose foot pain:

Changes how they walk
Makes first steps uncomfortable
Affects daily movement patterns

What This Research Does NOT Claim

To remain fully compliant:

EMS is not claimed to treat or cure plantar fasciitis
This is not medical advice
EMS is discussed only in terms of movement and muscle engagement

Research Information

Original Research Paper:
Effect of Neuromuscular Electrical Stimulation Versus Electrical Stimulation on Gait Parameters in Subjects Having Plantar Fasciitis

Simplified Name:
Why EMS Improves Walking Better Than TENS in Plantar Fasciitis

Source:
Published in the Indian Journal of Physiotherapy and Occupational Therapy, a peer-reviewed academic journal.

👉 Links to the original research paper :

https://medicopublication.com/index.php/ijpot/article/download/2631/2446/4841

Summary Table

Measure	Before EMS	After EMS	Improvement
Stride Length	~51 cm	~72 cm	~40% ↑
Step Length	~26 cm	~35 cm	~35% ↑
Cadence	~79 steps/min	~99 steps/min	~25% ↑
Statistical Strength	—	p < 0.0001	Extremely strong

Research Credibility

This study was conducted by physiotherapy researchers in India at the Krishna Institute of Medical Sciences (KIMS) and published in the Indian Journal of Physiotherapy and Occupational Therapy.
Both the researchers and the journal operate within accredited academic and physiotherapy education systems, and the study was published following a peer-review process.

Why Is This Study a Trustworthy Source?

Published in a peer-reviewed academic journal
Conducted at a medical sciences university
Written by qualified physiotherapy researchers
Approved by an institutional ethics committee
Focuses on measurable walking data, not opinions
Reports clear statistical results (p-values)

Join the Discussion

Have you noticed foot pain changes how you walk, not just how it feels?
That difference is exactly what this research highlights.

Leave a comment and share your experience.

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Disclaimer

This blog post is for informational and recreational purposes only and does not constitute medical advice.
Always consult with a healthcare professional before starting any new treatment.

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