Determining the Minimal Effective Dose of Static Stretching for Increasing Range of Motion in Adults

NCT06960590 | Active Not Recruiting

• 1 other identifier: SKE.0030.3.2025
• Study Type: interventional
• Target: 51
• Locations: 1 country
• Sites: 1

Brief Summary

The study is planned to be conducted in 2025. The methods used in the study are non-invasive methods. The study groups will perform 1 to 3 static stretching sessions per week. The number of series per session will be from 1 to 3. The static stretching time of the back band in the series will be from 20 s to 60 s. The total stretching time per week will be from 45 s to 135 s. The break between series will be 45 s, and the duration of the intervention will be from 6 to 8 weeks. During stretching, the subject maintains a maximum bend with straight knee joints for a specified time. Before starting the study, participants will undergo a toe-to-floor test to assess the flexibility of the back band. The test will be repeated after the intervention. The aim of the study is to determine the minimum effective dose of static stretching. Currently, anecdotal evidence suggests that this dose is 90 seconds of static stretching per week. The study does not involve any likelihood of harm to study participants as a result of participating in the study.

Conditions

Static Stretching

Outcome Measures

Primary Outcomes (1)

• Flexibility

  Flexibility was assessed using a modified stand-and-reach test. The participants stood with their feet shoulder-width apart and knees fully extended, then performed a forward bend, reaching as far as possible while maintaining straight legs. To measure the extent of their reach, a custom-built box was used. The box had the following dimensions: a length of 40 cm, a width of 45 cm, and a height of 35 cm. Each participant performed the test once. The same test was repeated after the 6-week intervention period to determine any improvements in flexibility.

  From registration to completion of the study, the duration is up to 8 weeks

Study Arms (2)

Streching group

EXPERIMENTAL

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

Other: Training - static streching

Control group

NO INTERVENTION

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

Interventions

Training - static streching OTHER

The intervention group performed one training session per week. Each training session consisted of 2 series of static stretching of the back band. The rest time between series was 45 s. The intervention lasted 6 weeks.

Streching group

Eligibility Criteria

• Age: 18 Years - 25 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• 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,

You may not qualify if:

• 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,

Sponsors & Collaborators

• Józef Piłsudski University of Physical Education: lead

Study Sites (1)

Józef Piłsudski Academy of Physical Education in Warsaw

Warsaw, Poland

Location

Related Publications (2)

• 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.

  PMID: 20023343 BACKGROUND

• Thomas E, Bianco A, Paoli A, Palma A. The Relation Between Stretching Typology and Stretching Duration: The Effects on Range of Motion. Int J Sports Med. 2018 Apr;39(4):243-254. doi: 10.1055/s-0044-101146. Epub 2018 Mar 5.

  PMID: 29506306 BACKGROUND

Related Links

• Related Info

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NON RANDOMIZED
• Masking: NONE
• Purpose: SCREENING
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Principal Investigator

Study Record Dates

• First Submitted: April 14, 2025
• First Posted: May 7, 2025
• Study Start: March 25, 2025
• Primary Completion: August 5, 2025
• Study Completion: August 6, 2025
• Last Updated: July 11, 2025

Record last verified: 2025-04

Data Sharing

• IPD Sharing: Will not share

Locations

PL (1)