Comparison Between Eccentric Hamstring Training and Sprint-Specific Training

Part of paid clinical trials in Madison, Wisconsin.

Sponsor
University of Wisconsin, Madison
Study ID
NCT07716319
Status
Not Yet Recruiting

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Conditions

  • Athlete
  • Exercise Training
  • Healthy Adult
  • Running
  • Sport
  • Ultrasound Imaging

Eligibility Criteria

Sex
ALL
Age
18 Years - 25 Years
Healthy Volunteers
Accepted

Interventions

  • RDL — OTHER
    The RDL will be performed with a 6 second eccentric component with the athlete returning to the start position with a maximal concentric hip extension.
  • NHE — OTHER
    The NHE will be performed with a 6 second eccentric component.
  • Sprint testing — OTHER
    The sprint training program will be performed twice per week with the first day of training focused on shorter distances to focus on acceleration and the second training day focused on maximal velocity. The relative efforts and distances for each training day will mimic a similar prescription to that of the resistance training program.

Study Details

The purpose of this study is to compare the effects of an intensity-, volume-, and time under tension-matched eccentric hamstring exercise intervention with the Romanian deadlift (RDL) and the Nordic hamstring exercise (NHE) to a sprint-specific training program on hamstring muscle architecture, volume, sprint performance, strength, and power. Participants will be assigned to complete one of the 3 hamstring interventions for 10 weeks.

Key Dates

First listed
Jul 21, 2026
Start date
Sep 30, 2026
Status verified
Jul 2026
Primary completion
Sep 30, 2027
Completion
Sep 30, 2027

Study Design

Enrollment
90 participants (estimated)
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER

Arms

  • Experimental: Romanian dead lift (RDL) group
    The training intervention groups will undergo the same program with the only difference being the interventional hamstring exercise. The program will consist of a 2-week familiarization period followed by 8 weeks of progressive training. The RDL arm will perform RDL.
  • Experimental: Nordic hamstring exercise (NHE) group
    The training intervention groups will undergo the same program with the only difference being the interventional hamstring exercise. The program will consist of a 2-week familiarization period followed by 8 weeks of progressive training. The NHE arm will performed NHE
  • Experimental: Sprint group
    The training intervention groups will undergo the same program with the only difference being the interventional hamstring exercise. The program will consist of a 2-week familiarization period followed by 8 weeks of progressive training. The sprint training program will be performed twice per week with the first day of training focused on shorter distances to focus on acceleration and the second training day focused on maximal velocity. The relative efforts and distances for each training day will mimic a similar prescription to that of the resistance training program.

Primary Outcome Measure

Change in fascicle length (FL) [ Time Frame: Baseline to Mid-intervention (6 weeks), Post-intervention (10 weeks), and Post 2 week de-training (12 weeks) ]

Central Contacts

Locations (1)

FacilityCityStateZIPSite coordinators
University of Wisconsin - MadisonMadisonWisconsin53705
Scott K Crawford, PhD
[email protected]
608-265-1308

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By research site
University of Wisconsin - Madison· Madison, WI

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