The Effect of Stretching Intensity on Pain Sensitivity

NCT05989490 | Completed

• 1 other identifier: Intensity vs. Hypoalgesia
• Study Type: interventional
• Target: 31
• Locations: 1 country
• Sites: 1

Brief Summary

The primary objective of this study is to determine the immediate efficiency of stretching intensity on regional and distant pain sensitivity in healthy subjects. It is hypothesized that the analgesic effect of stretching may be linked with the intensity of stretching in a dose-response relationship.

Conditions

Pain Threshold; Stretching; Pain Sensitivity; Range of Motion

Outcome Measures

Primary Outcomes (2)

• Pressure pain thresholds

  Pressure pain thresholds was measures using a handheld pressure algometer

  Pressure pain thresholds were measured as a baseline just prior to the induction of stretching to the point of pain and stretching to the point of discomfort

• Pressure pain thresholds

  Pressure pain thresholds was measures using a handheld pressure algometer

  Pressure pain thresholds were measured immediately after stretching

Secondary Outcomes (4)

• Knee extension range of motion

  Passive knee extension range of motion was measured as a baseline just prior to the induction of stretching to the point of pain and stretching to the point of discomfort

• Knee extension range of motion

  Passive knee extension range of motion was measured immediately after stretching

• Passive resistive torque

  Passive resistive torque was measured as a baseline just prior to the induction of stretching to the point of pain and stretching to the point of discomfort

• Passive resistive torque

  Passive resistive torque was measured immediately after stretching

Study Arms (2)

Static stretching to the point of pain

EXPERIMENTAL

The participants are assigned to four bouts of static stretching of the right knee flexors with a 20-second rest period between bouts 20 to the point of pain.

Other: Static stretching

Static stretching to the point of discomfort

EXPERIMENTAL

The participants are assigned to four bouts of static stretching of the right knee flexors with a 20-second rest period between bouts 20 to the point of discomfort.

Other: Static stretching

Interventions

Static stretching OTHER

The participants are assigned to four bouts of static stretching of the right knee flexors with a 20-second rest period between bouts 20 to the point of discomfort and to the point of pain.

Static stretching to the point of discomfort; Static stretching to the point of pain

Eligibility Criteria

• Age: 18 Years - 55 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• Healthy men and women aged 18-55 years are recruited. As part of the screening, volunteers will also be asked to indicate known medical issues or diseases.

You may not qualify if:

• Participants are included if they have no known medical conditions such as; cognitive impairments, neurological, orthopaedic, or neuromuscular problems that might affect the somatosensory system or preclude stretching exercises or range of motion testing at the knee.

Sponsors & Collaborators

• University College of Northern Denmark: lead
• Bispebjerg Hospital: collaborator
• University of Copenhagen: collaborator
• Research Unit for General Practice in Aalborg: collaborator

Study Sites (1)

University College of Northern Denmark

Aalborg, 9220, Denmark

Location

MeSH Terms

Interventions

Muscle Stretching Exercises

Intervention Hierarchy (Ancestors)

Exercise Therapy; Rehabilitation; Aftercare; Continuity of Patient Care; Patient Care; Therapeutics; Physical Therapy Modalities; Exercise; Motor Activity; Movement; Musculoskeletal Physiological Phenomena; Musculoskeletal and Neural Physiological Phenomena

Study Officials

• Morten P Støve, Pt. Msc

  University College of Northern Denmark and Center for General Practice, Aalborg University

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: DOUBLE
• Who Masked: PARTICIPANT, INVESTIGATOR
• Masking Details: Participants were blinded to the results of all measurements and naïve to research hypotheses. The investigator was blinded to the results of all measurements.
• Purpose: BASIC SCIENCE
• Intervention Model: CROSSOVER
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Model Details: This was a randomized, repeated-measures cross-over study. The interventions consist of two different stretching protocols (e.g., stretching to the point of discomfort and stretching to the point of pain). Subjects were randomized to one of two groups (pain first or discomfort first). Both groups underwent a static stretch protocol consisting of four bouts of thirty-second constant-angle static stretching of the knee flexors with a 20-second rest period between bouts. Subjects were instructed to keep the limb relaxed as the lower leg was passively moved towards extension to the point of discomfort and the point of pain.

Study Record Dates

• First Submitted: July 2, 2023
• First Posted: August 14, 2023
• Study Start: August 20, 2023
• Primary Completion: November 30, 2023
• Study Completion: April 30, 2024
• Last Updated: May 9, 2024

Record last verified: 2024-04

Data Sharing

• IPD Sharing: Will share
• Access Criteria: Access is granted on reasonable request

Locations

DK (1)