Overview

This trial is active, not recruiting.

Condition hamstring tightness
Treatments dry needling, sham needling, blunt needle placement, standard hamstring stretching exercise
Sponsor Emory University
Start date July 2015
End date May 2017
Trial size 28 participants
Trial identifier NCT02516137, IRB00077095

Summary

The purpose of this study is to find out if individuals with tight hamstring muscles who receive dry needling in addition to a standard stretching exercise program, show an improvement in hamstring tightness and function compared to individuals with tight hamstrings who receive either sham dry needling or no needling (blunt needle) in addition to a standard stretching program.

United States No locations recruiting
Other Countries No locations recruiting

Study Design

Allocation randomized
Endpoint classification efficacy study
Intervention model parallel assignment
Masking double blind (subject, investigator)
Primary purpose prevention
Arm
(Experimental)
Subjects with tight hamstrings will receive dry needling to the hamstrings with the needle inserted into the muscle tissue in addition to a standard hamstring stretching exercise program.
dry needling
Dry needling will be performed on two points over the hamstring muscles on the randomly determined side. Points 2 cm distal to the ischial tuberosity and halfway between the ischial tuberosity and popliteal crease within the medial and lateral muscle bellies will be identified and the skin cleansed with rubbing alcohol. A Seirin L- type 50 mm needle will be inserted into each of the two points to a depth no greater than three-quarters length of the needle into the hamstring muscle for 30 seconds using a vertical pistoning technique and then statically up to 10 minutes.
standard hamstring stretching exercise
Subjects will be instructed to stretch the back of their thighs, once a day for 3 repetitions, holding for 30 seconds each time performed bilaterally.
(Sham Comparator)
Subjects with tight hamstrings will receive sham dry needling to the hamstrings with the needle inserted into the subcutaneous tissue in addition to a standard hamstring stretching exercise program.
sham needling
Sham dry needling will be performed on two points over the hamstring muscles on the randomly determined side. Points 2 cm distal to the ischial tuberosity and halfway between the ischial tuberosity and popliteal crease within the medial and lateral muscle bellies will be identified and the skin cleansed with rubbing alcohol. The plastic tube of a Seirin L- type 50 mm needle will be placed against the skin and the needle will be tapped once so that it is inserted subcutaneously no deeper than 5 mm for 30 seconds using a vertical pistoning technique and then statically up to 10 minutes in each location.
standard hamstring stretching exercise
Subjects will be instructed to stretch the back of their thighs, once a day for 3 repetitions, holding for 30 seconds each time performed bilaterally.
(Placebo Comparator)
Subjects with tight hamstrings will receive no needling but have the tip of a blunt needle handle placed on the skin over the hamstrings in addition to a standard hamstring stretching exercise program.
blunt needle placement
Blunt needle placement will be performed on two points over the hamstring muscles on the randomly determined side. Points 2 cm distal to the ischial tuberosity and halfway between the ischial tuberosity and popliteal crease within the medial and lateral muscle bellies will be identified and the skin cleansed with rubbing alcohol. A blunt needle handle is inserted into a plastic tube which will be placed over the identified points for 30 seconds and then for an additional 10 minutes each. The blunt needle handle only touches the skin without puncturing it.
standard hamstring stretching exercise
Subjects will be instructed to stretch the back of their thighs, once a day for 3 repetitions, holding for 30 seconds each time performed bilaterally.

Primary Outcomes

Measure
Change in hamstring muscle extensibility
time frame: Baseline, at 5 weeks from baseline
Change in unilateral hop for distance test scores
time frame: Baseline, at 5 weeks from baseline
Change in crossover hop for distance tests scores
time frame: Baseline, at 5 weeks from baseline

Secondary Outcomes

Measure
Change in dynamometry pressure readings
time frame: Baseline, at 5 weeks from baseline

Eligibility Criteria

Male or female participants from 18 years up to 65 years old.

Inclusion Criteria: - Hamstring 90/90 extensibility goniometric measurement of more than 20 degrees of knee flexion bilaterally - Ability to perform a squat to 90 degrees of knee flexion without assistance of the upper extremities - Asymptomatic during walking Exclusion Criteria: - History of systemic neurological or arthritic condition - History of bony or peripheral nerve trauma or surgery lower extremities - History of treatment with dry needling - No contraindications to dry needling

Additional Information

Official title Clinical Effects of Dry Needling Among Asymptomatic Individuals With Hamstring Tightness
Principal investigator Marie Johanson, PT, PhD, OCS
Description Tightness of the hamstring muscles is a risk factor for injury. Currently, there is no data on the effect of dry needling on hamstring extensibility or functional performance measures among asymptomatic individuals with hamstring muscle tightness. The investigator wants to assess if individuals with tight hamstring muscles who receive dry needling in addition to a standard stretching exercise program, exhibit reduced hamstring tightness and improved functional performance compared to individuals with tight hamstrings who receive either sham dry needling or no needling (blunt needle) in addition to a standard stretching program.
Trial information was received from ClinicalTrials.gov and was last updated in June 2016.
Information provided to ClinicalTrials.gov by Emory University.