The Effect of 6 Week Hamstring Exercise Programs on Hamstring Muscle Strength
NCT ID: NCT04744194
Last Updated: 2023-02-10
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
NA
38 participants
INTERVENTIONAL
2022-02-13
2022-11-06
Brief Summary
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Detailed Description
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Group allocation:
A four block randomization method will be used to allocate participants to the Nordic hamstring exercise protocol or the single leg bridge protocol.
Interventions:
The Nordic hamstring exercise program or the single leg bridge program.
Testing procedure:
The eccentric strength of the participants' hamstrings will be recorded before and after the exercise intervention.
A 10 point visual analogue scale will be used to record the level of muscle soreness experienced after each training session.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
PREVENTION
DOUBLE
Study Groups
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Nordic hamstring exercise program
Participants are required to kneel on a gym mat keeping their hips in a slightly flexed position and to slowly lower themselves in a controlled manner as far as they could towards the ground. When they can no longer lower themselves as such, they are instructed to utilise their arms to buffer the fall and touch their chest off the ground, while maintaining tension in their hamstrings. Once their chest touches the ground they are instructed to immediately return to the starting position by pushing up with their hands
Nordic hamstring exercise program
Week 1 - 1 session per week consisting of 2 sets of 5 reps of the exercise Week 2 - 2 sessions per week consisting of 2 sets of 6 reps of the exercise Week 3 - 3 sessions per week consisting of 3 sets of 6 reps of the exercise Week 4 - 3 sessions per week consisting of 3 sets of 8 reps of the exercise Weeks 5 and 6 - 3 sessions per week consisting of 3 sets of the exercise. Set 1 with 12 reps, set 2 with 10 reps and set 3 with 8 reps.
Assisted nordic hamstring exercise program
Participants are required to kneel on a gym mat keeping their hips in a slightly flexed position and to slowly lower themselves in a controlled manner as far as they could towards the ground. During this exercise, participants are attached to a weighted pulley cable system via a chest attachment. A sufficient amount of assistance is given to allow the participant to lower to 30 degrees of knee flexion. When they can no longer lower themselves as such, they are instructed to utilise their arms to buffer the fall and touch their chest off the ground, while maintaining tension in their hamstrings. Once their chest touches the ground they are instructed to immediately return to the starting position by pushing up with their hands
Assisted nordic hamstring exercise program
Week 1 - 1 session per week consisting of 2 sets of 5 reps of the exercise Week 2 - 2 sessions per week consisting of 2 sets of 6 reps of the exercise Week 3 - 3 sessions per week consisting of 3 sets of 6 reps of the exercise Week 4 - 3 sessions per week consisting of 3 sets of 8 reps of the exercise Weeks 5 and 6 - 3 sessions per week consisting of 3 sets of the exercise. Set 1 with 12 reps, set 2 with 10 reps and set 3 with 8 reps.
Interventions
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Nordic hamstring exercise program
Week 1 - 1 session per week consisting of 2 sets of 5 reps of the exercise Week 2 - 2 sessions per week consisting of 2 sets of 6 reps of the exercise Week 3 - 3 sessions per week consisting of 3 sets of 6 reps of the exercise Week 4 - 3 sessions per week consisting of 3 sets of 8 reps of the exercise Weeks 5 and 6 - 3 sessions per week consisting of 3 sets of the exercise. Set 1 with 12 reps, set 2 with 10 reps and set 3 with 8 reps.
Assisted nordic hamstring exercise program
Week 1 - 1 session per week consisting of 2 sets of 5 reps of the exercise Week 2 - 2 sessions per week consisting of 2 sets of 6 reps of the exercise Week 3 - 3 sessions per week consisting of 3 sets of 6 reps of the exercise Week 4 - 3 sessions per week consisting of 3 sets of 8 reps of the exercise Weeks 5 and 6 - 3 sessions per week consisting of 3 sets of the exercise. Set 1 with 12 reps, set 2 with 10 reps and set 3 with 8 reps.
Eligibility Criteria
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Inclusion Criteria
* currently competing in team sports at least three occasions per week
Exclusion Criteria
* a history of anterior cruciate ligament rupture
* a history of involvement in a hamstring strengthening, injury prevention programme in the 3 months prior to the study.
18 Years
35 Years
ALL
Yes
Sponsors
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Dublin City University
OTHER
Responsible Party
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Enda Whyte
Assistant Professor
Principal Investigators
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enda whyte, PhD
Role: PRINCIPAL_INVESTIGATOR
Dublin City University
Locations
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Dublin City University
Dublin, , Ireland
Countries
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Other Identifiers
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2019_10_EW/FB
Identifier Type: -
Identifier Source: org_study_id
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