Clinical trial NCT05989490: The Effect of Stretching Intensity on Pain Sensitivity
Official title: The Effect of Stretching Intensity on Pain Sensitivity
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Pain Threshold
Stretching
Pain Sensitivity
Range of Motion
Lead sponsor: University College of Northern Denmark
Sponsor class: OTHER
Collaborators: name: Bispebjerg Hospital
name: University of Copenhagen
name: Research Unit for General Practice in Aalborg
First posted: 2023-08-14
Enrollment: 31
Sex: ALL
Minimum age (years): 18
Maximum age (years): 55
Standard ages: ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: CROSSOVER
Intervention model description: 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.
Primary purpose: BASIC_SCIENCE

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.


Eligibility criteria: Inclusion Criteria:

* 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.

Exclusion Criteria:

* 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.

Primary outcomes:
measure: Pressure pain thresholds
timeFrame: 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
measure: Pressure pain thresholds
timeFrame: Pressure pain thresholds were measured immediately after stretching
Secondary outcomes:
measure: Knee extension range of motion
timeFrame: 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
measure: Knee extension range of motion
timeFrame: Passive knee extension range of motion was measured immediately after stretching
measure: Passive resistive torque
timeFrame: 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
measure: Passive resistive torque
timeFrame: Passive resistive torque was measured immediately after stretching
Other outcomes:
Locations:
city: Aalborg
country: Denmark
facility: University College of Northern Denmark
Study officials:
affiliation: University College of Northern Denmark and Center for General Practice, Aalborg University
name: Morten P Støve, Pt. Msc
role: PRINCIPAL_INVESTIGATOR
References: