Strengthening Effect on Hamstring's Passive Mechanical Properties
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ClinicalTrials.gov Identifier: NCT03884738 |
Recruitment Status :
Completed
First Posted : March 21, 2019
Last Update Posted : April 22, 2020
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Sports Physical Therapy | Other: Concentric Exercise Other: Nordic Eccentric exercise Other: Neuromuscular Electrical Stimulation | Not Applicable |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 42 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Intervention Model Description: | randomization into three groups and measurement before and after intervention |
Masking: | None (Open Label) |
Primary Purpose: | Basic Science |
Official Title: | Effects Of Different Strengthening Methods On Hamstring Muscle Group's Passive Mechanical Properties in Healthy Individuals |
Actual Study Start Date : | March 21, 2019 |
Actual Primary Completion Date : | December 1, 2019 |
Actual Study Completion Date : | December 1, 2019 |
Arm | Intervention/treatment |
---|---|
Active Comparator: Concentric
Leg Curl Training
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Other: Concentric Exercise
Leg Curl Machine: 1st week - 1st day is 10 maximum repeat test. 2nd week - 2 days of training - 2 sets of 6 repeats. %60 percent of maximum load. 3rd week - 3 days of training - 3 sets of 6-8 repeats. %60-80 of maximum load. 4th-8th week - 3 days of training - 3 sets of 8-12 repeats. when 3 sets of 12 achieved, load was increased with 2.5kg. |
Active Comparator: Eccentric
Nordic Hamstring Training
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Other: Nordic Eccentric exercise
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Active Comparator: Neuromuscular Electrical Stimulation
Stimulation Training
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Other: Neuromuscular Electrical Stimulation
8 weeks, three times per week, 15 minutes of bilateral hamstring stimulation. 100 Hz. frequency, 600 microsecond duration rectangular current |
- Passive Mechanical Properties [ Time Frame: Change from baseline passive mechanical properties at 8 weeks ]Tone, Elasticity and Stiffness evaluation. Evaluated with Myotonometer-3
- Flexibility Measurement [ Time Frame: Change from baseline flexibility at 8 weeks ]Sit and reach test was used for hamstring flexibility
- Muscle Strength Measurement [ Time Frame: Change from baseline muscle strength at 8 weeks ]Hamstring and Quadriceps strength were measured with LaFayette Manuel Muscle Tester
- Agility Measurement [ Time Frame: Change from baseline agility time at 8 weeks ]Illinois Agility Test was used for agility measurement
- Anaerobic Explosive Power [ Time Frame: Change from baseline anaerobic explosive power at 8 weeks ]Jump and Reach test was administered
- Reaction Time [ Time Frame: Change from baseline reaction time at 8 weeks ]ruler drop test was used for reaction timing

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Ages Eligible for Study: | 18 Years to 30 Years (Adult) |
Sexes Eligible for Study: | Male |
Gender Based Eligibility: | Yes |
Gender Eligibility Description: | only male participants were accepted |
Accepts Healthy Volunteers: | Yes |
Inclusion Criteria:
- being sedentary
Exclusion Criteria:
- Having knee, hip and/or back pain
- Having a cardiovascular condition/disease
- History of previous knee and/or hip surgery
- Having a diagnose of any systemic disease
- History of previous hamstring injury
- Being physically active within last year ( Regular activity at least 3 days a week and continuity of at least 2 months was accepted as being physically active)

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03884738
Turkey | |
Hacettepe University | |
Ankara, Turkey, 06100 |
Study Director: | tuzun fırat, Assoc. Prof. | Hacettepe University |
Responsible Party: | Özgün Uysal, Research Assistant, Hacettepe University |
ClinicalTrials.gov Identifier: | NCT03884738 |
Other Study ID Numbers: |
HacettepeSportsPhysio |
First Posted: | March 21, 2019 Key Record Dates |
Last Update Posted: | April 22, 2020 |
Last Verified: | April 2020 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Muscle Tonus Elasticity Electric Stimulation Therapy Physical Conditioning, Human |