Nordic, plyometric, and neuromuscular training with SIS for hamstring strength and balance
Official title: Comparison of the Effects of Selected Training Methods (Neuromuscular Training, Plyometric Training, and Nordic Hamstring Exercise) and SIS Stimulation on Balance, Motor Performance Tests, and Lower Limb Strength
Run by Gdansk University of Physical Education and Sport · NCT07492732 · Data updated 2026-11-12
This study tests whether four-week programs (Nordic hamstring exercises, plyometrics, or neuromuscular training), alone or combined with Super Inductive Stimulation (SIS), improve hamstring strength, balance, and motor performance in physically active adults aged 19–40.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 19 Years to 40 Years |
| Sex | All |
| Enrollment | 30 (estimated) |
| Sponsor | Gdansk University of Physical Education and Sport Academic / other |
| Locations | 1 site (Gdansk) |
| Status | Recruiting |
| Started | March 15, 2025 |
| Main results expected | May 1, 2026 |
| Study ends | May 1, 2026 |
| Registry record updated | March 25, 2026 |
| Trial ID | NCT07492732 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Healthy, physically active adults aged 19–40 without recent lower-limb injury or pain are ideal candidates.
✕Probably not a fit
People with current pain, recent lower-limb injury or surgery, active inflammatory conditions, those in peak sport training, or those outside the 19–40 age range are unlikely to benefit or be eligible.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This randomized controlled study runs in three independent stages, each focused on one training modality (Nordic hamstring, plyometric, or neuromuscular training). Within each stage participants are randomly assigned to one of four parallel groups: training plus SIS, training alone, SIS alone, or a no-change control. Interventions are delivered under supervision with standardized four-week protocols and SIS applied via a high-intensity electromagnetic device; a familiarization phase precedes testing. Primary outcomes include hamstring muscle strength, balance measures, and motor performance, with adherence and protocol compliance monitored throughout.
Why it matters
Potential benefit: If successful, this approach could offer a short-term, noninvasive way to increase hamstring strength, improve balance and movement, and potentially lower re-injury risk in active adults.
How similar studies have gone: Nordic hamstring, plyometric, and neuromuscular programs have prior evidence for improving hamstring strength and reducing injury risk, whereas clinical evidence for high-intensity SIS on hamstring outcomes is limited and more novel.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Healthy individuals aged 19-40, * Without injuries, * Physically active persons, athletes. Exclusion Criteria: * periods of peak training load specific to the athlete's discipline, * evidence of overload-related pathology in the knee, hip, or lumbosacral joints, * the presence of any pain symptoms, * clinically relevant muscle fatigue or indicators of overtraining, * engagement in strength-based sports within several weeks preceding competition, * active inflammatory conditions involving osseous, articular, or ligamentous structures of the lower limbs, * a history of injury or surgical intervention within the 6 months prior to the study intervention.
Where it's running
-
Gdansk University of Physical Education and Sport
Gdansk, Poland Recruiting
Study contacts
- Study coordinator: Ewelina Perzanowska, PhD
- Email: ewelina.perzanowska@awf.gda.pl
- Phone: 791597673
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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.