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

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.

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Key information

Conditions

Hamstring Injury

Age range

19 year–26 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Academy of Physical Education in Gdańsk

Gdansk, Poland

About this study

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.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

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

Treatment and study plan

Nordic Hamstring Exercise

Other

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.

Primary outcomes

Biodex Balance System

Time frame: 15 min

The 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 outcomes

Biodex System

Time frame: 20 min

The maximum muscle strength of the hamstring group will be assessed for both legs

Sponsors and collaborators

Lead sponsor

Gdansk University of Physical Education and Sport

Other

Registry information

Important dates

Study start: 2024
Primary completion: 2024
Study completion: 2024
First posted: Apr 24, 2024
Registry last updated: Sep 19, 2024

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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Completed