Comparison of Two Protocols for Patellofemoral Pain Syndrome (PFPS)
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government.
Read our disclaimer for details.
ClinicalTrials.gov Identifier: NCT01691170
: September 24, 2012
Last Update Posted
: September 25, 2012
University of Sao Paulo
Information provided by (Responsible Party):
Gabriel Peixoto Leão Almeida, PT, University of Sao Paulo
The patellofemoral pain syndrome (PFPS) is defined as a painful complaint in the anterior aspect of the knee, although peripatellar pain and / or retropatellar are also common. In general, conservative treatment is the initial option of choice for patients with PFPS, however, the lack of a specific causal factor makes it difficult to choose the best treatment so early. This way, the purpose of this study is investigate the effects of the quadriceps femoris strengthening versus hamstring stretching in patients with pattellofemoral pain.
Numeric Pain Rating Scale [ Time Frame: Participants will be followed for the duration of 8 weeks. ]
Pain was assessed using an 11-point numeric pain rating scale (NPRS), on which 0 denoted an absence of pain and 10 denoted unbearable pain.
Secondary Outcome Measures
Lysholm Scale [ Time Frame: Participants will be followed for the duration of 8 weeks. ]
This questionnaire is made up of eight items with objective response options. The final score is expressed in nominal and ordinal form, as follows: 95 to 100 points - excellent; 84 to 94 points - good; 65 to 83 points - fair; and 64 or fewer points - poor.
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study:
18 Years to 40 Years (Adult)
Sexes Eligible for Study:
Accepts Healthy Volunteers:
Symptoms of anterior knee pain for at least 1 moth;
Average pain level of 3 or more on a 10-cm visual analogue scale during stepping up and down a 25-cm height;
Anterior or retropatellar knee pain on at least 2 of the following activities: prolonged sitting, climbing stairs, squatting, running, kneeling, and hopping/jumping;
Presence of 2 of the following clinical criteria on assessment: pain during apprehension test, pain during the patellar compression test, and crepitation during the compression test.
Previous knee surgery or arthritis;
History of patellar dislocation or subluxation, malalignment, or ligament laxity;
Patellar tendon pathology or chondral damage;
Spinal referred pain;
History of other abnormalities such as leg length inequalities (>2 cm);
Medication as a part of the treatment;
Previous physical therapy or acupuncture treatment for the knee within the previous 30 days.