Utilizing the Trunk as a Proximal Lever to Strengthen the Hip Musculature and Alter Lower Extremity Function

Investigating the Effects of a Triplanar Rotary Based Hip Focused Therapeutic Exercise Program on Dynamic Lower Extremity Alignment and Functional Performance

Does a rotary based triplanar exercise intervention that utilizes the trunk as a proximal lever, strengthen the hip and alter dynamic LE alignment in running females?

Study Overview

• Status: Completed
• Conditions: Patellofemoral Pain Syndrome
• Intervention / Treatment: Other: Triplanar Rotary Resistance

Detailed Description

Current hip-focused programs fail to alter hip adduction angles in females while performing higher speed and more complex maneuvers such as running.

(Willy, et al., 2011) - 10 female runners, underwent 6 wk. hip focused intervention, change in SLS but NO change in hip adduction angle while running.

A different intervention strategy that includes utilizing the trunk as the proximal lever to strengthen the hip, could potentially alter biomechanical outcomes such as hip adduction angles in female runners.

This study will apply a new intervention model and then measure running, single leg squat and hip strength to determine if a newly informed intervention can alter LE kinematics in females while running and make improvements in hip strength following the intervention Inclusion Criteria

• 18 years old or greater
• Female Exclusion Criteria
• Injury of the lumbar spine, hips, knees or foot/ankle in the last 6mos that required medical attention
• any surgery of the lower back or the pelvis or lower extremities any time in the subjects life

• Study Type: Interventional
• Enrollment (Actual): 32
• Phase: Not Applicable

Contacts and Locations

Study Locations

• United States
  • North Carolina
    • High Point, North Carolina, United States, 27268
      • High Point University

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (ADULT, OLDER_ADULT)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: Female

Description

Inclusion Criteria:

• 18> year old female; must be able to run on the treadmill for 5-7 min and perform a single leg squat

Exclusion Criteria:

• surgery to the LB or lower extremities Significant injury (seeking medical attention) to the LB or LEs in the last 6mos.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: TREATMENT
• Allocation: RANDOMIZED
• Interventional Model: PARALLEL
• Masking: SINGLE

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
ACTIVE_COMPARATOR: Hip; This group will perform a known hip strengthening program	Other: Triplanar Rotary Resistance; Trunk group will strengthen the hip using the trunk as a lever to access the hip. The hip group will use femur as the lever to strengthen the hip.; Other Names: Convention Hip Focused
EXPERIMENTAL: Trunk; This group will use the trunk as a lever to strengthen the hip	Other: Triplanar Rotary Resistance; Trunk group will strengthen the hip using the trunk as a lever to access the hip. The hip group will use femur as the lever to strengthen the hip.; Other Names: Convention Hip Focused

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Change in Hip Strength after a 12 week hip focused intervention	Isometric hand held dynamometer	Baseline measures at initial data collection; repeat post intervention measures at 6wks

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Biomechanical assessment of single leg squat	Subject squats on single leg and qualitative scoring is administered to determine the subjective amount of contralateral pelvic drop and femoral adduction to be described as dynamic knee valgus. The qualitative values will be binary in nature, whereas DKV is present or not.	Baseline measures at initial data collection; repeat post intervention measures at 6wks
Biomechanical Running Assessment	2/3D analysis of running gait following intervention; Utilizing both 3D/2D methods the measure of contralateral pelvic drop and the bisection of the patella will determine the amount of femoral adduction noted during running. The change in the femoral adduction angle after a 6 week intervention is the specific outcome measure to be obtained.	Baseline measures at initial data collection; repeat post intervention measures at 6wks

Collaborators and Investigators

• Sponsor: High Point University
• Investigators: Principal Investigator: Alexis Wright, DPT, HPU; Study Chair: Eric Hegedus, DPT, HPU; Study Director: Kevin Ford, PhD, HPU

Study record dates

Study Major Dates

• Study Start (ACTUAL): August 9, 2017
• Primary Completion (ACTUAL): December 15, 2017
• Study Completion (ACTUAL): December 15, 2017

Study Registration Dates

• First Submitted: September 12, 2017
• First Submitted That Met QC Criteria: September 14, 2017
• First Posted (ACTUAL): September 18, 2017

Study Record Updates

• Last Update Posted (ACTUAL): February 26, 2018
• Last Update Submitted That Met QC Criteria: February 23, 2018
• Last Verified: February 1, 2018

More Information

Terms related to this study

• Keywords: exercise; knee; hip; PFPS; proximal control
• Additional Relevant MeSH Terms: Joint Diseases; Musculoskeletal Diseases; Patellofemoral Pain Syndrome
• Other Study ID Numbers: 201508-387

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: UNDECIDED
• IPD Plan Description: The data collected will only be shared amongst the research team named in this protocol.

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No