EMG feedback-driven hamstring training with the Hamshell device
Official title: Optimizing Hamstring Activation Through EMG-Feedback and the Hamshell Device
Run by Praxisklinik Rennbahn AG · NCT07660926 · Data updated 2026-11-12
This study tests whether adding real-time muscle activity feedback during hamstring training is better than training without feedback for healthy, active adults.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years to 40 Years |
| Sex | All |
| Enrollment | 50 (estimated) |
| Sponsor | Praxisklinik Rennbahn AG Academic / other |
| Locations | 1 site (Muttenz) |
| Status | Recruiting |
| Started | June 9, 2026 |
| Main results expected | June 30, 2027 |
| Study ends | July 31, 2027 |
| Registry record updated | June 22, 2026 |
| Trial ID | NCT07660926 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Healthy adults aged 18–40 who are recreationally active (at least 150 minutes/week of moderate activity) and have no current lower-extremity injuries.
✕Probably not a fit
Individuals with recent or current lower-extremity injuries or those unable to follow study procedures may see no benefit.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
Healthy, physically active adults are randomized to two groups: EMG biofeedback training versus identical training without feedback, using the Hamshell device over five weeks (twice weekly). Outcomes measured before and after include hamstring strength, muscle activity, and flexibility. The study aims to see if real-time EMG feedback enhances neuromuscular adaptations and loading strategies to reduce injury risk. Participants face typical strength-training risks such as muscle soreness, with procedures conducted at a single center. This trial explores whether combining biofeedback with specialized loading broadens knee-angle specific hamstring activation beyond traditional exercises.
Why it matters
Potential benefit: If successful, EMG biofeedback during hamstring training could improve strength and neuromuscular control, potentially lowering injury risk for active individuals.
How similar studies have gone: Earlier work suggests EMG biofeedback can enhance muscle activation, but this specific combination with Hamshell loading and injury-prevention outcomes is relatively novel.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Age between 18 and 40 years * Recreationally active, defined as engaging in at least 150 minutes per week of moderate-intensity physical activity Exclusion Criteria: * Current or recent (≤6 months) musculoskeletal injury of the lower extremities * Inability to follow study procedures or instructions
Where it's running
-
Rennbahnklinik
Muttenz, Switzerland Recruiting
Study contacts
- Study coordinator: Jan Stutz, PhD
- Email: research@rennbahnklinik.ch
- Phone: +41 61 465 64 88
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
Acute Effects of Neurodynamics on Hamstrings in Athletes
This study tests whether neurodynamic techniques can help athletes keep or improve hamstring strength and endurance.
-
Thermal Therapies for Hamstring Injuries
This study tests whether hot or cold therapy, in addition to standard physiotherapy, helps people with acute hamstring injuries recover faster.
-
ACL reconstruction with the over-the-top technique plus lateral extra-articular tenodesis in older versus younger patients
This project tests whether ACL reconstruction using the over-the-top technique combined with lateral extra-articular tenodesis gives similar outcomes and complication rates in people over 50 compared with people under 30.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.