STRETCHINGNCT04453644
Effects of Stretching on Strength of Proximal and Distal Group of Muscles - A Comparative Study
A study testing Muscle static stretching in people with STRETCHING, run by King Saud University at 1 site in Saudi Arabia.
Trial summary
Muscular flexibility is believed to prevent injuries and improve movement therefore most coaches include stretching exercises in their pre-competition and pre-exercise warm-up routines. Read more about this study
- Who is it for?
- Ages 22 to 30 yearsHealthy volunteers can take part
- Conditions the study is for
- STRETCHING
- What is being tested?
- Muscle static stretching
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 28 participants
- Where
- 1 siteSaudi Arabia
- Study dates
- 23 Jan 2019to 5 Sep 2019
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 22 to 30 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- For group A: subjects performed active knee extension test and those lacking at least 20 degrees of active knee extension range, with hip in 90 degree of flexion were selected. For group B (Calf): Subjects performed active foot dorsiflexion in long sitting position with back supported against the wall and those having not more than 20-degree range of motion were selected.
- Selected subjects used to engage in 1-5 hours of regular physical activity per week (recreationally active) that does not involve stretching exercise
Who cannot join
- Subjects reporting any current or ongoing neuromuscular disease, injury specific to lower limb joints, any apparent limit in knee or ankle ROM and competitive/professional athletes were excluded from study.
Trial locations and contacts
1 site in 1 country.
About this study
Muscular flexibility is believed to prevent injuries and improve movement therefore most coaches include stretching exercises in their pre-competition and pre-exercise warm-up routines. One question arises here, should sports persons avoid stretching exercises prior to sporting events thereby exposing themselves to musculoskeletal injuries, or should they continue stretching exercises prior to sporting events and risk losing the maximal performance? The aim of this study is to compare the effects of 2, 4, and 8 min of static stretching (SS) on isometric maximum voluntary contraction (MVCF) force between proximal (Hamstrings) and distal group (Calf) of muscles.
Read the detailed description
OBJECTIVE: To compare the effects of 2, 4, and 8 min of static stretching (SS) on isometric maximum voluntary contraction (MVCF) force between proximal (Hamstrings) and distal group (Calf) of muscles.
DESIGN: Two-group pretest-posttest experimental design. METHODS: Each subject visited the Rehabilitation center on three days: On day-I for static stretching for 2 minutes (SS2), day-II for 4 minutes (SS4), and day-III for 8 minutes (SS8). Isometric Maximum Voluntary Contraction Force (MVCF) measurement was done prior (Pre), 0-min, 10-min, and 20-min post-intervention (i.e. stretching). Each visit was separated by a gap of at least 3-4 days. On each visit, each subject underwent (a). Pre-intervention evaluation, (b). Intervention, (c). Post-intervention evaluation. Subjects performed stretching exercises under the supervision of expert Physical Therapist. The outcome assessor who was kept blind to study protocol did all measurements.
- Conditions
- STRETCHING
- Being tested
- Muscle static stretching
- Keywords
- Muscle strength, muscle stretching exercises, strain gauge
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Muscle static stretchingOther
On day-I: Static Stretching done for 2 minutes (SS2), on day-II: Static Stretching done for 4 minutes (SS4), and on day-III: Static Stretching done for 8 minutes (SS8).
| Study group | Role | What they receive |
|---|---|---|
| Group A (Hamstrings) | Experimental | Hamstring stretching would be done then isometric strength would be measured. Receives: Other: Muscle static stretching |
| Group B (Calf) | Experimental | Calf stretching would be done then isometric strength would be measured. Receives: Other: Muscle static stretching |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change in isometric maximum voluntary contraction force before and after stretching
Change in isometric muscle strength measured before and after stretching using strain gauge on 3 different days
Measured: MVCF was measured immediately (0 min), 10-min and 20 min post intervention on 3 different days, with each day separated by gap of 3-4 days.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted1 Jul 2020
- Study start23 Jan 2019
- Primary completion17 Jul 2019
- Study completion5 Sep 2019
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for STRETCHINGStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
- Who is masked
- Outcomes assessor
- Enrolment
- 28 participants (actual)
Sponsor and investigators
- Lead sponsor
- King Saud University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Masood Khan, King Saud University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04453644
- Sponsor's protocol ID
- RRC-2019-06
- Status last verified
- Jun 2020
- First submitted
- 24 Jun 2020
- Last updated
- 1 Jul 2020
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Alghadir AH, Khan M, Quddus N, Chawla C. Effects of different stretch durations on the strength of the proximal and distal group of muscles - a randomized trial. Medicine (Baltimore). 2022 Oct 28;101(43):e31279. doi: 10.1097/MD.0000000000031279.
PubMed 36316911
Study at a glance
From the registry record, last updated by the sponsor on 1 Jul 2020. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effects of Stretching on Strength of Proximal and Distal Group of Muscles - A Comparative Study
- ClinicalTrials.gov ID
- NCT04453644
- Acronym / sponsor ID
- RRC-2019-06
- Conditions
- STRETCHING
- Keywords
- Muscle strength, muscle stretching exercises, strain gauge
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 28 participants (actual)
- Lead sponsor
- King Saud UniversityUniversity, hospital or other
- Study start
- 23 Jan 2019 (actual)
- Primary completion
- 17 Jul 2019 (actual)
- Study completion
- 5 Sep 2019 (actual)
- First posted
- 1 Jul 2020 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Muscular flexibility is believed to prevent injuries and improve movement therefore most coaches include stretching exercises in their pre-competition and pre-exercise warm-up routines. One question arises here, should sports persons avoid stretching exercises prior to sporting events thereby exposing themselves to musculoskeletal injuries, or should they continue stretching exercises prior to sporting events and risk losing the maximal performance? The aim of this study is to compare the effects of 2, 4, and 8 min of static stretching (SS) on isometric maximum voluntary contraction (MVCF) force between proximal (Hamstrings) and distal group (Calf) of muscles.
Detailed description
OBJECTIVE: To compare the effects of 2, 4, and 8 min of static stretching (SS) on isometric maximum voluntary contraction (MVCF) force between proximal (Hamstrings) and distal group (Calf) of muscles.
DESIGN: Two-group pretest-posttest experimental design. METHODS: Each subject visited the Rehabilitation center on three days: On day-I for static stretching for 2 minutes (SS2), day-II for 4 minutes (SS4), and day-III for 8 minutes (SS8). Isometric Maximum Voluntary Contraction Force (MVCF) measurement was done prior (Pre), 0-min, 10-min, and 20-min post-intervention (i.e. stretching). Each visit was separated by a gap of at least 3-4 days. On each visit, each subject underwent (a). Pre-intervention evaluation, (b). Intervention, (c). Post-intervention evaluation. Subjects performed stretching exercises under the supervision of expert Physical Therapist. The outcome assessor who was kept blind to study protocol did all measurements.
Study design
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Group A (Hamstrings) | Experimental | Other: Muscle static stretchingHamstring stretching would be done then isometric strength would be measured. |
| Group B (Calf) | Experimental | Other: Muscle static stretchingCalf stretching would be done then isometric strength would be measured. |
Who may qualify
- Ages
- 22 to 30 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (2 listed)
- For group A: subjects performed active knee extension test and those lacking at least 20 degrees of active knee extension range, with hip in 90 degree of flexion were selected. For group B (Calf): Subjects performed active foot dorsiflexion in long sitting position with back supported against the wall and those having not more than 20-degree range of motion were selected.
- Selected subjects used to engage in 1-5 hours of regular physical activity per week (recreationally active) that does not involve stretching exercise
Key exclusion criteria (1 listed)
- Subjects reporting any current or ongoing neuromuscular disease, injury specific to lower limb joints, any apparent limit in knee or ankle ROM and competitive/professional athletes were excluded from study.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Muscle static stretchingOn day-I: Static Stretching done for 2 minutes (SS2), on day-II: Static Stretching done for 4 minutes (SS4), and on day-III: Static Stretching done for 8 minutes (SS8). | Other | Group A (Hamstrings), Group B (Calf) |
Primary outcome
Change in isometric maximum voluntary contraction force before and after stretching
Time frame: MVCF was measured immediately (0 min), 10-min and 20 min post intervention on 3 different days, with each day separated by gap of 3-4 days.
Change in isometric muscle strength measured before and after stretching using strain gauge on 3 different days
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 1 Jul 2020.
- Derived from this study: PubMed 36316911Alghadir AH, Khan M, Quddus N, Chawla C. Effects of different stretch durations on the strength of the proximal and distal group of muscles - a randomized trial. Medicine (Baltimore). 2022 Oct 28;101(43):e31279. doi: 10.1097/MD.0000000000031279.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Muscle static stretching in people with STRETCHING, run by King Saud University at 1 site in Saudi Arabia.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 1 Jul 2020. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Saudi Arabia. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Change in isometric maximum voluntary contraction force before and after stretching (time frame: MVCF was measured immediately (0 min), 10-min and 20 min post intervention on 3 different days, with each day separated by gap of 3-4 days.). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT04453644, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 1 Jul 2020.