Comparison of the Effects of Static Stretching and Full Range of Motion Strength Training on Posterior Band Flexibility

NCT ID: NCT07061041

Last Updated: 2025-07-11

Basic Information

• Recruitment Status: RECRUITING
• Clinical Phase: NA
• Total Enrollment: 51 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2025-07-02
• Study Completion Date: 2025-08-25

Brief Summary

The study will be conducted in 2025. The methods used in the study are non-invasive methods. One study group will perform 2 series of static stretching of the posterior band once a week. The stretching time in each series will be 60s, and the duration of the intervention will be 6 weeks. The test subjects will maintain a maximum prone position with their knee joints straight for a specified period of time during the stretching. The second study group will perform full range of motion strength training in the form of 3 series of 10 repetitions of the Romanian Deadlift (RDL) once a week, with the intervention duration also being 6 weeks. Prior to the start of the study, participants will undergo a toe-to-floor test to assess posterior band flexibility. The test will be repeated again after the intervention.

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Conditions

Flexibility; Strength Training Effects; Static Stretching

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: OTHER
• Blinding Strategy: NONE

Study Groups

Control group

Only tests were performed in the group, no intervention was introduced

Group Type: NO_INTERVENTION

No interventions assigned to this group

Streching group

The group performed one training session per week consisting of 2 sets of 60 seconds of static stretching

Group Type: EXPERIMENTAL

Streching group

Intervention Type: OTHER

The group performed one training session per week consisting of 2 sets of 60 seconds of static stretching

Strength training group

The group will perform one workout per week consisting of 3 series of the "Romanian deadlift" exercise of 10 repetitions. Each repetition will be performed at a specific pace - 3s in eccentric contraction and 1s in concentric contraction. The aforementioned exercise, the Romanian deadlift, will be performed by the subjects on a platform (elevation) in order to achieve maximum range of motion.

Group Type: EXPERIMENTAL

Strength training

Intervention Type: OTHER

The group will perform one workout per week consisting of 3 series of the "Romanian deadlift" exercise of 10 repetitions. Each repetition will be performed at a specific pace - 3s in eccentric contraction and 1s in concentric contraction. The aforementioned exercise, the Romanian deadlift, will be performed by the subjects on a platform (elevation) in order to achieve maximum range of motion.

Interventions

Strength training

The group will perform one workout per week consisting of 3 series of the "Romanian deadlift" exercise of 10 repetitions. Each repetition will be performed at a specific pace - 3s in eccentric contraction and 1s in concentric contraction. The aforementioned exercise, the Romanian deadlift, will be performed by the subjects on a platform (elevation) in order to achieve maximum range of motion.

Intervention Type: OTHER

Streching group

The group performed one training session per week consisting of 2 sets of 60 seconds of static stretching

Intervention Type: OTHER

Eligibility Criteria

Inclusion Criteria

• Age over 18 years,
• No lower limb injuries, no spinal injuries and no craniocerebral injuries in the last 6 months,
• No lower limb surgeries, no spinal surgeries and no central nervous system surgeries in the last 6 months,

Exclusion Criteria

• Age under 18 years
• Injuries to the lower limbs, spine or craniocerebral injuries within the last 6 months,
• Surgical procedures to the lower limbs, spine or surgical procedures to the central nervous system within the last 6 months,

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 30 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

Józef Piłsudski University of Physical Education

OTHER

Sponsor Role: lead

Responsible Party

Michał Kaczorowski

Laboratory Assistant

Responsibility Role: PRINCIPAL_INVESTIGATOR

Locations

Józef Piłsudski Academy of Physical Education in Warsaw

Warsaw, , Poland

Site Status: RECRUITING

Countries

Poland

Facility Contacts

Michał Kaczorowski

Role: primary

m.kaczorowski32@wp.pl

662664635

References

Shadmehr A, Hadian MR, Naiemi SS, Jalaie S. Hamstring flexibility in young women following passive stretch and muscle energy technique. J Back Musculoskelet Rehabil. 2009;22(3):143-8. doi: 10.3233/BMR-2009-0227.

Reference Type: BACKGROUND

PMID: 20023343 (View on PubMed)

Zhao S, Robertson DD, Wang G, Whiting B, Bae KT. X-ray CT metal artifact reduction using wavelets: an application for imaging total hip prostheses. IEEE Trans Med Imaging. 2000 Dec;19(12):1238-47. doi: 10.1109/42.897816.

Reference Type: BACKGROUND

PMID: 11212372 (View on PubMed)

Other Identifiers

SKE.0030.59.2025

Identifier Type: -

Identifier Source: org_study_id