Quick Overview
You train hard and eat well, yet building noticeable muscle tone and strength still feels slow.
New research from Professor Volker Adams at Germany’s respected TU Dresden Heart Center, published in a leading scientific journal, reveals something specific: consistent EMS use can increase muscle mass by around 1% and improve muscle function by 10–15% in just 5–6 weeks. One study even showed 30% larger thigh muscles in adults.
This matters because more muscle supports better toning, strength, and natural fat loss.
Backed by multiple human trials from a credible researcher, it offers a smarter way to accelerate your results. Here’s exactly what the science shows and how it could help you.
We always provide direct links to the original research at the end of every article so you can review the evidence yourself.
EMS Helped Increase Muscle Size by 30%, Even in Adults Over 75
You’re putting in the work. You train, you eat well, and you’re focused on building a stronger, more toned body. But sometimes progress feels slower than you’d like. Whether you’re trying to add more muscle, improve definition, or support fat loss through better body composition, it’s natural to wonder if there’s a smarter way to get results.
That’s exactly what a team of researchers in Germany set out to understand.
Professor Volker Adams from the Department of Molecular and Experimental Cardiology at TU Dresden Heart Center reviewed the evidence on EMS technology. His work was published in the Journal of Cachexia, Sarcopenia and Muscle, a respected scientific journal from one of the world’s leading scientific nations.
This wasn’t casual research — it carefully examined findings from cell studies, animal models, and real human trials to see what EMS can actually deliver.
What the research found about muscle gains
The results were clear and encouraging.
Studies showed that consistent use of EMS can increase muscle mass by around 1% and improve muscle function by 10–15% in as little as 5 to 6 weeks. In one trial with adults over 75, participants saw their thigh muscle size increase by around 30% after four months.
Even more interesting was the comparison with traditional training. In some cases, EMS improved functional performance more effectively than regular resistance exercises. It also appeared especially good at protecting the type of muscle fibres that help create a toned, strong appearance — the ones that often decline with age.
For people focused on muscle toning and muscle gain, these findings suggest EMS can be a valuable addition to your routine. More muscle doesn’t just change how you look — it also supports a healthier metabolism, which can naturally help with fat loss efforts when combined with good nutrition and lifestyle habits.
How EMS actually works inside your body
Many people wonder what’s really happening when you use EMS. The research explains it at a deeper level.
EMS works by sending targeted electrical impulses that cause your muscles to contract. At the molecular level, this process helps shift your body into a more anabolic (muscle-building) state. It increases important signals like IGF-1 while reducing certain catabolic markers that break muscle down. It also lowers myostatin — a protein that can limit muscle growth — and boosts the activity of satellite cells, which play a key role in repairing and building new muscle tissue.
In simple terms, EMS doesn’t just make your muscles work harder in the moment. It creates the right internal environment for muscle building and recovery to happen more effectively.
The review also looked at Whole body EMS, sometimes delivered through a Full body EMS system. When used with the right settings and consistency, it offers a time-efficient way to stimulate multiple muscle groups at once — something especially useful if you’re busy and want meaningful results without spending hours training every week.
Why this matters for your goals
If your focus is on muscle toning, building strength, and supporting fat loss through better body composition, understanding how EMS works gives you more options. It can act as a powerful complement to your current training — helping you get more out of the effort you’re already putting in.
The research also highlights that EMS is generally well-tolerated when introduced gradually and used correctly. While some people notice temporary changes in certain blood markers after their very first sessions, these effects tend to settle quickly with regular use.
The bottom line
This isn’t hype. It’s proper science from a credible researcher at a well-respected German institution, published in a serious scientific journal. The findings give real hope to anyone who wants better muscle gains, improved tone, and a more efficient path toward their body composition goals.
Whether you’re already using EMS or simply curious about what it can do, the evidence is clear: when used consistently and properly, it can meaningfully support your efforts to build muscle and feel stronger.
If you’ve been looking for a smarter, science-backed way to accelerate your results, this research shows that EMS technology is worth serious consideration.
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Research Summary
Electromyostimulation to fight atrophy and to build muscle: facts and numbers
Author: Volker Adams
Journal: Journal of Cachexia, Sarcopenia and Muscle (2018)
DOI / Link: https://doi.org/10.1002/jcsm.12334
| Key Detail | Supporting Evidence from the Paper |
|---|---|
| EMS increases muscle mass after treatment | Studies show EMS can increase muscle mass by around 1% after 5–6 weeks of treatment |
| EMS improves muscle function | Muscle function improves by around 10–15% after 5–6 weeks of EMS application |
| Significant muscle growth in older adults | A 4-month EMS intervention (48 sessions) in subjects over 75 years increased rectus femoris cross-sectional area by around 30% |
| Superior functional improvement vs voluntary training | In sedentary seniors, EMS improved functional performances more effectively than voluntary leg press training |
| Protection against sarcopenia-related changes | EMS counteracted fast type muscle fibre atrophy, which is typically associated with sarcopenia |
| Recommended pulse characteristics | Stimulation should use biphasic current with large pulses between 300–450 µs |
| Recommended frequency by age group | High frequency of 50–100 Hz is advised for young individuals, while around 30 Hz is recommended for older individuals |
| Minimum treatment frequency and duration | A minimum of three sessions per week for at least 5–6 weeks should be performed |
| Intensity guideline | EMS intensity should be as high as individually tolerated |
| Safety regarding creatine kinase | Extremely high creatine kinase concentrations (up to 117-fold above baseline) were reported after initial sessions, yet no rhabdomyolysis-induced complications occurred |
| Adaptation of CK response over time | The CK rise is blunted after several sessions and averages in the range of conventional resistance training |
| Effect on anabolic and catabolic pathways | EMS stimulates anabolic pathways (e.g., IGF-1 secretion) and negatively modulates catabolic metabolism (e.g., MafB and MuRF1 expression) |
| Impact on myostatin and satellite cells | EMS effectively downregulates myostatin mRNA and increases the regenerative capacity of satellite cells |
| Clinical value for specific populations | EMS is positioned as a valuable tool for sarcopenic or CHF patients who cannot qualify for or comply with conventional exercise programs |
| Position relative to voluntary exercise | EMS should not be regarded as a replacement for exercise training, as voluntary exercise provides additional benefits on endothelial, myocardial, and cognitive function |
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