NCT04448288

Brief Summary

Stretching is reported to have detrimental effects on strength and thus avoided prior to strength training session. Do stretching indeed decreases muscle strength? To examine the time course (immediate, 10- and 20-min post stretching) for the effects of 2, 4, and 8 min long duration of static-stretching (SS) on isometric maximum voluntary contraction (MVC) force of hamstring muscles.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
14

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Jan 2019

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 30, 2019

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 15, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 15, 2019

Completed
1.1 years until next milestone

First Submitted

Initial submission to the registry

May 6, 2020

Completed
2 months until next milestone

First Posted

Study publicly available on registry

June 25, 2020

Completed
Last Updated

June 25, 2020

Status Verified

June 1, 2020

Enrollment Period

3 months

First QC Date

May 6, 2020

Last Update Submit

June 24, 2020

Conditions

Stretch

Keywords

StretchingMuscle strengthHamstring Muscles

Outcome Measures

Primary Outcomes (1)

  • Change in Maximum voluntary contraction force (MVCF) before and after stretching

    Change in Isometric strength (MVCF) was measured before and after stretching using strain gauge

    MVCF was measured on 3 different days with each day separated by 3-4 days.

Study Arms (1)

Hamstring Group

EXPERIMENTAL

Pretest-posttest experimental design. Subjects participated in three experimental trials on three different days. On day-I for static-stretching for 2 minutes (SS2), day-II for 4 minutes (SS4), and day-III for 8 minutes (SS8). Testing was conducted before (pre), immediately after (post), and at 10 and 20 min post stretching. MVCF was measured using strain gauze as main outcome measure. The SS trials involved varied repetitions of 30-s static-stretches and 20-s relax period. MVC force was assessed.

Other: Static stretching

Interventions

Static stretchingOTHER

Static stretchings were performed by subjects that involved varied repetitions of 30-s static-stretches and 20-s relax period.

Hamstring Group

Eligibility Criteria

Age24 Years - 30 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Subjects used to engage in 1 to 5 hours of physical activity per week. They were not doing stretching exercises regularly.

You may not qualify if:

  • Subjects having any current injury specific to lower limb joints or current neuromuscular disease were excluded from the study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

King Saud University

Riyadh, 11433, Saudi Arabia

Location

MeSH Terms

Interventions

Muscle Stretching Exercises

Intervention Hierarchy (Ancestors)

Exercise TherapyRehabilitationAftercareContinuity of Patient CarePatient CareTherapeuticsPhysical Therapy ModalitiesExerciseMotor ActivityMovementMusculoskeletal Physiological PhenomenaMusculoskeletal and Neural Physiological Phenomena

Study Officials

  • Masood Khan, MPTh

    Rehabilitation research chair

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
OTHER
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal investigator

Study Record Dates

First Submitted

May 6, 2020

First Posted

June 25, 2020

Study Start

January 30, 2019

Primary Completion

April 15, 2019

Study Completion

April 15, 2019

Last Updated

June 25, 2020

Record last verified: 2020-06

Locations

SA(1)