Muscle Stretching - the Potential Role of Endogenous Pain Inhibitory Modulation on Stretch Tolerance
- Conditions
- Muscle Stretching ExercisesPain Threshold
- Interventions
- Other: Cold pressor test
- Registration Number
- NCT03713788
- Lead Sponsor
- University College of Northern Denmark
- Brief Summary
This study investigates the influence of a remote, painful stimulus on stretch tolerance. Half of the participants will receive a conditioning painful stimulus following static stretching while the other half will rest quietly.
- Detailed Description
The effect of stretching on joint range of motion is primarily related to changes in the tolerance to stretch, but the mechanisms underlying this change are still largely unknown.
The nervous system has an inbuilt ability to modulate the perceived magnitude of afferent noxious stimuli via supraspinally mediated endogenous pain inhibition or facilitation and by engaging endogenous mechanisms pain tolerance in healthy individuals is known to increase. Thus increasing the tolerance to pain could potentially increase range of motion following stretching.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- Male
- Target Recruitment
- 34
- Eligibility for participation included the absence of any pain or other conditions that might affect the somatosensory system.
- Substance abuse,
- History of neurological or mental disabilities
- Lack of ability to comply with instructions
- Delayed onset of muscle soreness.
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description Experimental pain group Cold pressor test subjects in the pain group were instructed to immerse their non-dominant hand into a container with circulating water at 1˚C to 4˚C and keep it there for 2 minutes. They were instructed to immerse it to wrist-level and keep the hand open.
- Primary Outcome Measures
Name Time Method Knee extension range of motion Passive knee extension range of motion was measured at baseline Passively induced knee extension range of motion was measured usind the Biodex system 4 pro isokinetic dynomometer
Change in knee extension range of motion between baseline and post stretch. Changes in passive knee extension range of motion were measured 5 minutes after baseline measures following stretching Changes in passively induced knee extension range of motion was measured using the Biodex system 4 pro isokinetic dynomometer
Changes in knee extension range of motion between post stretch and post pain. Changes in passive knee extension range of motion were measured 5 minutes after post stretch measures following intervention. Changes in passively induced knee extension range of motion was measured using the Biodex system 4 pro isokinetic dynomometer
- Secondary Outcome Measures
Name Time Method Surface electromyography measures of muscle activity Muscle activity during the passive knee extension motion was measured at baseline Muscle activity during the passive knee extension motion were measured using SEMG.
Changes in surface electromyography measures of muscle activity between baseline and post stretch measures. Changes in muscle activity during the passive knee extension motion were measured 5 minutes after baseline measures following stretching. Changes in muscle activity during the passive knee extension motion were measured using SEMG.
Changes in surface electromyography measures of muscle activity between post stretch and post pain measures. Changes in muscle activity during the passive knee extension motion were measured 5 minutes after post stretch measures following intervention. Changes in muscle activity during the passive knee extension motion were measured using SEMG.
Passive resistive torque using the Biodes system 4 pro. Passive resistive torque during the passive knee extension motion was measured at baseline. Passive resistive torque during the passive knee extension motion was measured using the Biodex system 4 pro isokinetic dynamometer.
Changes in passive resistive torque measured using the Biodex system 4 pro between baseline and post stretch measures. Changes in passive resistive torque during the passive knee extension motion was measured 5 minutes after baseline measures following stretching. Changes in passive resistive torque during the passive knee extension motion was measured using the Biodex system 4 pro isokinetic dynamometer.
Changes in passive resistive torque measured using the Biodex system 4 pro between post stretch and post pain measures. Passive resistive torque during the passive knee extension motion was measured 5 minutes after post stretch measures following intervention. Changes in Passive resistive torque during the passive knee extension motion was measured using the Biodex system 4 pro isokinetic dynamometer.
Trial Locations
- Locations (1)
University College of Northern Denmark
🇩🇰Aalborg, Denmark