EMG Activation of Gluteal Musculature During Exercises With and Without Resistance

NCT ID: NCT01841216

Last Updated: 2015-02-03

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 30 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2013-04-30
• Study Completion Date: 2013-12-31

Brief Summary

The gluteus medius (Gmed) and gluteus maximus (Gmax) muscles are important components in the treatment of many lower limb injuries. Recent studies have evaluated a myriad of exercises which activate the Gmed and Gmax, but limited research remains on exercises involving resistance and the role of the TFL. The purpose of this study is to evaluate Gmed, Gmax, and TFL percent maximal voluntary isometric contraction (%MVIC) and perceived exertion in healthy and low back pain patients while performing exercises with and without resistance. Methods: A convenience sample of healthy subjects and patients diagnosed with non-radicular low back pain will be recruited. Exclusionary criteria will include: current low back or lower extremity injury (healthy group), pregnancy, history of hip surgery, and radicular symptoms. Surface electromyography will be used to quantify the activity level of the gluteal muscles and TFL while performing a series of 8 exercises with and without Thera-Band® Resistance Tubing and Stability Trainer. The maximal voluntary isometric contraction (MVIC) will be established for each muscle group and the order of exercises performed will be randomized to minimize the effect of fatigue. Following the completion of each exercise, the patient will rate their perceived exertion level on the Thera-Band® Resistance Intensity Scale for Exercise (RISE). The EMG signals will be smoothed and rectified and analyzed using a root-mean-square algorithm. Clinical Relevance: The results of this study will allow clinicians to better prescribe exercises, proven to activate the gluteal muscles and limit the TFL involvement, in the treatment of low back pain.

Conditions

Low Back Pain

Study Design

• Allocation Method: NON_RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: DIAGNOSTIC
• Blinding Strategy: NONE

Study Groups

Low Back Pain

Lower Body Exercises with and without resistance

Group Type: EXPERIMENTAL

Lower Body Exercises with and without resistance

Intervention Type: DEVICE

lower body exercises with and without resistance designed to activate the gluteal/hip musculature

Healthy

Lower Body Exercises with and without resistance

Group Type: EXPERIMENTAL

Lower Body Exercises with and without resistance

Intervention Type: DEVICE

lower body exercises with and without resistance designed to activate the gluteal/hip musculature

Interventions

Lower Body Exercises with and without resistance

lower body exercises with and without resistance designed to activate the gluteal/hip musculature

Intervention Type: DEVICE

Eligibility Criteria

Inclusion Criteria

• healthy, physically active subjects
• patients diagnosed with non-radicular low back pain
• 18-65

Exclusion Criteria

• current low back or lower extremity injury (healthy group)
• pregnancy
• history of hip surgery
• radicular symptoms

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 65 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

Sport and Spine Rehab Clinical Research Foundation

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Barton Bishop, DPT

Role: PRINCIPAL_INVESTIGATOR

Sport & Spine Rehab Clinical Research Foundation

Locations

Sport & Spine Rehab

Rockville, Maryland, United States

Countries

United States

Other Identifiers

SSR02

Identifier Type: -

Identifier Source: org_study_id