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Four Weeks of Nordic Hamstring Exercises Impact the Strength and Balance of the Hamstring Muscle Group

Four Weeks of Nordic Hamstring Exercises Impact the Strength and Balance of the Hamstring Muscle Group

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT06382597
Enrollment
2
Registered
2024-04-24
Start date
2024-07-02
Completion date
2024-08-30
Last updated
2024-09-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hamstring Injury

Brief summary

The aim of the study is to assess the impact of 4 weeks of eccentric Nordic Hamstring Exercise training on changes in the hamstring muscle group, as well as to analyze parameters such as maximum muscle strength of the knee flexors, RFD (rate of force development) and static balance, dynamics for the dominant leg.

Detailed description

Research procedure: Nordic Hamstring Exercise training covers a period of 4 weeks, during which the volunteer exercises 3 times a week for 3 sets, each set consisting of 3 repetitions of NHE. Before starting eccentric exercises, you will warm up for 15 minutes. After each series, there will be a 2-minute passive break, during which the subject will rest. In the first week, the subject will exercise under the supervision of the instructor, in the next three weeks the subject will exercise at home after prior instruction.

Interventions

Nordic Hamstring Exercise involves a controlled descent of the upright torso from a vertical kneeling position forward towards the ground (parallel to the ground) and returning to the starting position. The ankle joints are stabilized by the other person's grip during a series of exercises.

Sponsors

Gdansk University of Physical Education and Sport
Lead SponsorOTHER

Study design

Observational model
OTHER
Time perspective
OTHER

Eligibility

Sex/Gender
ALL
Age
19 Years to 26 Years
Healthy volunteers
Yes

Inclusion criteria

* healthy people aged 19-26, * no injuries, * athletes, people practicing sports as amateurs

Exclusion criteria

* during the period of greatest training load related to the discipline, * overload changes in the joints: knee, hip and lumbar-sacral, * pain, * muscle fatigue, overtraining, * in strength sports a few weeks before the start, * inflammation of the osteoarticular and ligamentous elements of the lower limbs, * previous injuries, surgical procedures within 6 months before the intervention

Design outcomes

Primary

MeasureTime frameDescription
Biodex Balance System15 minThe medial-lateral stability index (MLSI), anteroposterior stability index (APSI) and general static and dynamic stability index will be assessed for both limbs and the dominant leg

Secondary

MeasureTime frameDescription
Biodex System20 minThe maximum muscle strength of the hamstring group will be assessed for both legs

Countries

Poland

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026