NCT03651141

Brief Summary

The purpose of this study is to investigate the effects of myofascial decompression (cupping) and neurodynamic sliding technique for the hamstring on Division I Track and Field athletes who complain of hamstring tightness. Research questions will be: how do these techniques affect hamstring range of motion and flexibility; isometric strength of the hamstring muscle; muscle activation; and rate of force development. The hypotheses of this study are that neurodynamic sliding will have an effect on all variables and myofascial decompression will only have an effect on range of motion.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
21

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Mar 2017

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 27, 2017

Completed
14 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 10, 2017

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 12, 2017

Completed
10 months until next milestone

First Submitted

Initial submission to the registry

March 29, 2018

Completed
5 months until next milestone

First Posted

Study publicly available on registry

August 29, 2018

Completed
Last Updated

August 31, 2018

Status Verified

August 1, 2018

Enrollment Period

14 days

First QC Date

March 29, 2018

Last Update Submit

August 28, 2018

Conditions

Keywords

Hamstring tightnessmyofascial decompressioncuppingneurodynamic sliding

Outcome Measures

Primary Outcomes (1)

  • Hamstring Flexibility change

    Using the 'Active Knee Extension test', subjects are placed supine with both the hip and knee positioned at 90° of flexion and then asked to extend lower leg until point of limitation. A digital inclinometer is used to measure the angle of the knee joint in this position to examine flexibility of the hamstring muscle group.

    Baseline, 5 minutes after intervention, and within 24 hours of intervention

Secondary Outcomes (5)

  • Hamstring muscle strength change

    Baseline, 5 minutes after intervention, and within 24 hours of intervention

  • Time of Force Development

    Baseline, 5 minutes after intervention, and within 24 hours of intervention

  • Electromyographic (EMG) Muscle Activation of the Hamstring muscles

    Baseline, 5 minutes after intervention, and within 24 hours of intervention

  • Disablement of the Physically Active patient outcome survey

    Baseline, 5 minutes after intervention, and within 24 hours of intervention

  • Functional Patient Outcome survey

    Baseline, 5 minutes after intervention, and within 24 hours of intervention

Study Arms (3)

Neurodynamic Sliding

EXPERIMENTAL

neurodynamic sliding consists of 2 movements; 1) movement 1 involves sitting on the edge of the treatment table the bringing their neck to their chest along with bending their knee and pointing their ankle to the ground. Movement 2 is performed by facing their head towards the ceiling and straightening their knee while pointing their ankle towards their nose. Subjects will alternate these 2 active movements for 60s and repeated 5 times, with rest period of 15s between sets.

Other: Neurodynamic Sliding

Myofascial Decompression

EXPERIMENTAL

For the group receiving the cupping treatment, the subject will lay on their stomach and their affected hamstring will be exposed. Cocoa butter will be applied to the hamstring prior to the application of the cups. 5 cups will be placed along the hamstring and calf muscles. Using a handheld suction pump, each cup will be pumped so that skin fills up half of the cup. The cups will stay in place for five minutes and the clinician will instruct the subject to perform 5 repetitions of active quad sets and 5 repetitions of ankle pumps .

Other: Myofascial Decompression

Diathermy

SHAM COMPARATOR

The control group will receive a sham heat (diathermy treatment). The subjects will be asked to sit and relax for five minutes and the machine will not be turned on with a timer timing the treatment.

Other: Diathermy

Interventions

Subjects in the neurodynamic sliding group perform 2 movements; 1) movement 1 involves sitting on the edge of the treatment table the bringing their neck to their chest along with bending their knee and pointing their ankle to the ground. Movement 2 is performed by facing their head towards the ceiling and straightening their knee while pointing their ankle towards their nose. Subjects will alternate these 2 active movements for 60s and repeated 5 times, with rest period of 15s between sets. A metronome will be set at 30 beats per minute for 15 full slides per minute to standardize the amount of slides per session.

Neurodynamic Sliding

For the group receiving the cupping treatment, the subject will lay on their stomach and their affected hamstring will be exposed. Cocoa butter will be applied to the hamstring prior to the application of the cups. 5 cups will be placed along the hamstring and calf muscles. Using a handheld suction pump, each cup will be pumped so that skin fills up half of the cup. The cups will stay in place for five minutes and the clinician will instruct the subject to perform 5 repetitions of active quad sets and 5 repetitions of ankle pumps .

Myofascial Decompression

The control group will receive a sham heat (diathermy treatment). The subjects will be asked to sit and relax for five minutes and the machine will not be turned on with a timer timing the treatment.

Diathermy

Eligibility Criteria

Age18 Years - 25 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Must be in the Sprints, Jumps, or Multi (heptathlon, pentathlon, or decathlon) groups
  • complain of hamstring tightness and/or injury in the last calendar year
  • have less than 80⁰ for Active Knee Extension test.

You may not qualify if:

  • Past history or current neurological disorders or orthopedic diseases
  • Surgery of the lower extremity that involves an autograft on the tested leg
  • Past history of hamstring surgery
  • Receiving current treatment for a hamstring injury
  • Received any form of myofascial therapy or neurodynamic techniques within the last week unhealed wounds
  • active TB
  • leukemia
  • hemophilia
  • thrombocytopenia
  • fever
  • influenza
  • moderate/severe anemia
  • high blood pressure
  • cardiac conditions
  • late stages of pregnancy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Applied Neuromuscular Physiology Lab

Stillwater, Oklahoma, 74078, United States

Location

MeSH Terms

Conditions

Musculoskeletal Pain

Interventions

Diathermy

Condition Hierarchy (Ancestors)

Muscular DiseasesMusculoskeletal DiseasesPainNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Hyperthermia, InducedTherapeutics

Study Officials

  • Aric Warren, EdD

    Oklahoma State University

    STUDY CHAIR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
FACTORIAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator, Graduate Student

Study Record Dates

First Submitted

March 29, 2018

First Posted

August 29, 2018

Study Start

March 27, 2017

Primary Completion

April 10, 2017

Study Completion

June 12, 2017

Last Updated

August 31, 2018

Record last verified: 2018-08

Data Sharing

IPD Sharing
Will not share

Locations