Changes in Quadriceps Function Following Local or Distant Interventions in Individuals With Patellofemoral Pain
Patellofemoral Pain Syndrome, Chondromalacia Patellae, Anterior Knee Pain Syndrome
About this trial
This is an interventional treatment trial for Patellofemoral Pain Syndrome focused on measuring Lumbopelvic Manipulation, Lumbosacral Manipulation, Sacroiliac Manipulation, TENS Spine, TENS Knee, Knee Pain, Chronic Knee Pain
Eligibility Criteria
Inclusion Criteria:
- Age 15-50 years
- Insidious onset of patellofemoral pain lasting greater than 1 month in duration
- Unilateral or Bilateral knee pain or dysfunction with at least two of the following symptoms: patella compression, squatting, prolonged sitting, going up or down stairs, or isometric quadriceps contraction.
Exclusion Criteria:
- Participants who are outside of age range (to ensure bony maturity while reducing the prevalence of age related degenerative changes and hypomobility.)
- Ligamentous insufficiency, meniscus damage, patellar tendonitis, history of subluxation/dislocation
- Participants with traumatic spine or lower extremity injury within past 6 months
- Participants who have had previous adverse reactions to electrical stimulation (i.e. electrode burns.)
- Participants with signs indicating lumbar nerve root compression or upper motor neuron lesions (contraindication for lumbopelvic joint manipulation)
- Participants with ankylosing spondylitis (contraindication for lumbopelvic manipulation)
- Participants with spinal cord disease or cauda equina (contraindication for lumbopelvic manipulation)
- Participants with osteoporosis (contraindication for lumbopelvic joint manipulation)
- Participants with rheumatoid arthritis (contraindication to lumbopelvic joint manipulation.)
- Participants who may be currently pregnant. (contraindication for electrical stimulation and lumbopelvic joint manipulation.)
- Participants who have a demand-type cardiac pacemaker (contraindication for electrical stimulation)
- Participants with diagnosis of cancer (current cancer is a contraindication for electrical stimulation and relative contraindication for lumbopelvic joint manipulation)
- Participants who are unable to give consent or are unable to understand procedures of experiment.
Sites / Locations
- Creighton University
Arms of the Study
Arm 1
Arm 2
Arm 3
Experimental
Experimental
Experimental
Lumbopelvic Manipulation
TENS- Spine
TENS- Knee
The lumbopelvic joint manipulation (Grade V mobilization) will be performed on the ipsilateral side of the test limb. The participant will be passively side-bent towards and rotated away from the selected lumbopelvic region which is followed by the delivery of a posterior/inferior force through the opposite anterior superior iliac spine. If a cavitation is not heard or felt by the patient or clinician, the technique will be repeated. If the second attempt does not produce cavitation the procedure will be repeated on the contralateral side using similar methods. If cavitation is not heard or felt by the participant or clinician following the second attempt on the contralateral side, the participant will proceed with the assessment of quadriceps strength and activation as usual.
The TENS electrodes will be applied lateral to L1 and L2 and lateral to S5 and S1. The TENS unit will be set to deliver a continuous TENS biphasic pulsatile current at 150 Hz, with a phase duration of 150 microseconds. The TENS unit will be worn during all exercise testing and for the first 30 minutes of quadriceps force output and activation testing. After the 30 minute post-intervention measures (Post30) are obtained, the TENS unit will be turned off.
The TENS electrodes will be applied on the medial and lateral superior, as well as the medial and lateral inferior, borders of the patella. Care will be taken not to place TENS electrodes on the quadriceps muscles or muscles of the anterior leg. The TENS unit will be set to deliver a continuous TENS biphasic pulsatile current at 150 Hz, with a phase duration of 150 microseconds. The TENS unit will be worn during all exercise testing and for the first 30 minutes of quadriceps force output and activation testing. After the 30 minute post-intervention measures (Post30) are obtained, the TENS unit will be turned off.