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Optimizing Hamstring Activation Through EMG-Feedback and the Hamshell Device

NCT07660926 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 50

Last updated 2026-06-22

No results posted yet for this study

Summary

In this study, we investigate whether training of the posterior thigh muscles with visual feedback on muscle activity is more effective than the same training without feedback. To this end, healthy, physically active adults complete a training programme on a training device twice a week for five weeks. Muscle strength, muscle activity, and flexibility are measured before and after the training. Participants are randomly assigned to one of two groups: one group trains with feedback on muscle activity, the other without. Participation involves minimal risks, similar to those of a typical strength training session (e.g. muscle soreness). The aim of the study is to improve training methods for the prevention of muscle injuries.

Conditions

  • Hamstring Muscles
  • Hamstring Muscle Strength

Interventions

BEHAVIORAL

EMG-Biofeedback-Training

Participants complete 10 training sessions with EMG feedback over a 5-week period. The training is designed to optimize biceps femoris and gluteus maximus activation at extended knee angles using the Hamshell device. All training sessions last approximately 30 minutes and are conducted at the Rennbahnklinik. The first and middle training sessions are supervised to ensure correct exercise execution and appropriate progression. During these supervised session, EMG will be recorded.

BEHAVIORAL

Control

Particpants in the control group will perform the same training as the intervention group but without EMG feedback.

Sponsors & Collaborators

  • Praxisklinik Rennbahn AG

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
40 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2026-06-09
Primary Completion
2027-06-30
Completion
2027-07-31

Countries

  • Switzerland

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07660926 on ClinicalTrials.gov