Control of Frontal Plane Biomechanics, Patellofemoral Pain Syndrome
Conditions
Brief summary
The purpose of this research is to determine the impact of a hip activation home exercise program (HEP) compared to a hip activation + single leg balance HEP on performance of the Forward-Step-Down Test (FSDT) in healthy females. Participants will be assigned to the control (hip activation HEP only) or experimental (hip activation + single leg balance HEP). Following the pre-test data collection, participants will complete their HEP for 8 weeks. They will return to the lab for post-test measurements.
Interventions
Sidelying hip abduction, side plank with hip abduction, clamshell (hip abduction + external rotation), side plan with clamshell, and quadruped fire hydrant exercises will be performed for 1 minute isometric holds, 2 times per week for 8 weeks.
Hip activation HEP: Sidelying hip abduction, side plank with hip abduction, clamshell (hip abduction + external rotation), side plan with clamshell, and quadruped fire hydrant exercises will be performed for 1 minute isometric holds, 2 times per week for 8 weeks. Single leg balance: variety of single leg balance exercises with different upper extremity and lower extremity positions to provide different balance stimuli. Weeks are alternated performing these exercises with eyes open and eyes closed.
Sponsors
Study design
Masking description
The investigator who will analyze the data will be blinded
Eligibility
Inclusion criteria
* first or second year students at the institutions's School of Allied Health Professions * healthy * female
Exclusion criteria
* participating in another research study * current knee pain or pathology on the dominant leg * known diagnosis of vestibular impairment * known pregnancy
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Forward-Step-Down Test | pre-intervention (baseline), post-intervention (8 weeks) | a step-down task that is performed off a 20 cm box. Five repetitions are performed to give one score (minimum score 0, maximum score 6). A higher score is worse. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| surface electromyography (sEMG) peak | pre-intervention (baseline), post-intervention (8 weeks) | The peak sEMG will be collected from the dominant side's gluteus maximum and gluteus medius muscles. The sEMG will be collected during both the FSDT and unipedal stance test |
| surface electromyography (sEMG) mean | pre-intervention (baseline), post-intervention (8 weeks) | The mean sEMG will be collected from the dominant side's gluteus maximum and gluteus medius muscles. The sEMG will be collected during both the FSDT and unipedal stance test |
| Unipedal Stance Test (UPST) | pre-intervention (baseline), post-intervention (8 weeks) | The time a participant can stand on one leg will be collected for eyes open and eyes closed conditions. |
| Dose-Response | post-intervention (8 weeks) | The dose-response for outcome 1, 2, and 3 will be calculated, using participant's self-reported exercise compliance as the dose. |
Countries
United States