13 Studies, 374 People: This Is What EMS Does to Your Muscle Gains

EMS During Prolonged Sitting Increases Vascular Endothelial Function, Japanese Study Finds

In a peer-reviewed study published in Physical Therapy Research (2022), 12 healthy men completed 1 hour of prolonged sitting. One session included 20 minutes of lower-body  EMS using belt electrodes at 4 Hz and 50% maximum intensity. In the control trial, vascular endothelial function declined, with FMD dropping significantly. In the  EMS  trial, normalised flow-mediated dilation (nFMD) of the brachial artery rose significantly from 0.84 ± 0.43 to 1.14 ± 0.77. Researchers from Osaka Yukioka College and Tokushima University showed passive muscle contractions increase blood flow, shear stress and nitric oxide while reducing sympathetic activity. This credible evidence proves  EMS  supports better circulation during sitting. Read the full post for practical desk-worker insights and mechanisms. Full study: https://oriems.fit/blogs/research-digest/ems-prolonged-sitting-vascular-endothelial-function-study

One 30-Minute EMS Session Improved Vascular Endothelial Function and Blood Flow, Study Finds

In a 2016 quasi-randomized controlled trial published in the International Heart Journal, Kitasato University researchers tested one 30-minute EMS session on the thighs and calves of 34 men ~12 days after heart attack. Only the group receiving EMS with muscle contractions showed clear benefits: vascular endothelial function (RH-PAT index) improved significantly from 1.61 to 1.85 (p<0.05), while peripheral blood circulation (Foot-tcPO₂) rose markedly during and after the session (p<0.01). The sensory-only control group showed no meaningful changes. The session was safe — systolic blood pressure rose less than 10 mmHg, heart rate stayed stable, and there were no adverse events. Researchers link the improvements to increased shear stress triggering nitric oxide release. This rigorous, peer-reviewed evidence from a leading Japanese medical university suggests EMS can support better blood flow. Read our full blog post for the complete story and what it means for everyday vascular wellness. Full info: https://oriems.fit/blogs/research-digest/can-one-ems-session-reboot-your-vascular-health

Can Timed Muscle Stimulation Reduce Heart Workload?

A 2017 study by researchers from Kurume University School of Medicine in Japan, published in the respected journal PLOS ONE, tested electrical muscle stimulation on the lower limbs timed with each heartbeat. In 9 out of 11 healthy volunteers, this approach generated effects similar to heart-assist devices. It significantly increased cardiac output from 4.8 to 6.1 litres per minute and stroke volume, while lowering peripheral vascular resistance — all without raising blood pressure. These results suggest that properly timed electrical muscle stimulation may support better blood flow by enhancing the natural pumping action of the calf muscles, often called the body’s “second heart.” Because the study was conducted by credible scientists at a leading Japanese university and published in an international peer-reviewed journal, the findings carry real weight. Read on to discover what this could mean for using EMS technology more effectively. Full info: https://oriems.fit/blogs/research-digest/what-if-strengthening-your-legs-could-help-your-heart

Could 8D Audio Be the Most Enjoyable Way to Feel Calmer and More Focused?

8D Audio Can Help You Stay Focused Longer This 2022 study, published in the International Journal of Research Publication and Reviews,  by Neelanjan Manna claims that 8D audio benefits people with ADHD by improving focus during prolonged activities. It compares 8D audio to binaural beats, where slightly different frequencies below 1,000 Hz in each ear create a meditation-like state more rapidly. The article notes that concentration is challenging for those with ADHD and states 8D audio "apparently" helps sustain attention on long tasks. Benefits for neurodiverse individuals, popularised post-2020 by TikTok, reportedly include relaxation, de-stressing and happier mood, which may aid ADHD management.  Full info: https://oriems.fit/blogs/research-digest/8d-audio-health-effects

Six Scientists. Five Universities: What They Found About EMS and Your Muscles

The evidence is definitive. Electrical muscle stimulation produces smooth tetanic muscle contractions — scientifically identical to those generated during physical exercise. At 30–50 Hz, peer-reviewed research confirms motor units are reliably activated, building genuine muscle strength and endurance. Correct electrode placement at the motor point maximises recruitment. A 1:3 to 1:5 work-to-rest ratio consistently sustains contraction quality throughout each session. When combined with voluntary movement, EMS recruits more complete muscle fibres than exercise alone. The research also confirms EMS counteracts muscle mass decline during reduced physical activity. Six scientists. Five Canadian universities. Four global databases. This is peer-reviewed science, not marketing https://oriems.fit/blogs/research-digest/ems-produces-real-muscle-contractions