Danilo de Oliveira Silva1, Marcella Ferraz Pazzinatto2, Liliam Barbuglio Del Priore3, Amanda Schenatto Ferreira3, Ronaldo Valdir Briani3, Deisi Ferrari3, David Bazett-Jones4, Fábio Mícolis de Azevedo3. 1. Laboratory of Biomechanics and Motor Control, School of Science and Technology, São Paulo State University (UNESP), Presidente Prudente, Brazil; La Trobe Sports and Exercise Medicine Research Centre, School of Allied Health, La Trobe University, Bundoora, Victoria, Australia. Electronic address: danilo110190@hotmail.com. 2. Laboratory of Biomechanics and Motor Control, School of Science and Technology, São Paulo State University (UNESP), Presidente Prudente, Brazil; La Trobe Sports and Exercise Medicine Research Centre, School of Allied Health, La Trobe University, Bundoora, Victoria, Australia. 3. Laboratory of Biomechanics and Motor Control, School of Science and Technology, São Paulo State University (UNESP), Presidente Prudente, Brazil. 4. School of Exercise & Rehabilitation Sciences, College of Health and Human Services, Department of Athletic Training, University of Toledo, Toledo, OH, USA.
Abstract
OBJECTIVES: (i) To assess the reliability of knee crepitus measures, (ii) to investigate the association between knee crepitus and PFP; (iii) to investigate the relationship between knee crepitus with self-reported function, physical activity and pain. DESIGN: Cross-sectional. SETTING: Laboratory-based study. PARTICIPANTS: 165 women with PFP and 158 pain-free women. MAIN OUTCOME MEASURES: Knee crepitus test, anterior knee pain scale (AKPS) and self-reported worst knee pain in the last month, knee pain after 10 squats and knee pain after 10 stairs climbing. RESULTS: Knee crepitus clinical test presented high reliability Kappa value for PFP group was 0.860 and for pain-free group was 0.906. There is a significantly greater proportion of those with crepitus in the PFP group than in the pain-free group (OR = 4.19). Knee crepitus had no relationship with function (rpb = 0.03; p = 0.727), physical activity level (rpb = 0.010; p = 0.193), worst pain (rpb = 0.11; p = 0.141), pain climbing stairs (rpb = 0.10; p = 0.194) and pain squatting (rpb = 0.02; p = 0.802). CONCLUSION: Women who presents knee crepitus have 4 times greater odds to be in a group with PFP compared to those who do not. However, knee crepitus has no relationship with self-reported clinical outcomes of women with PFP.
OBJECTIVES: (i) To assess the reliability of knee crepitus measures, (ii) to investigate the association between knee crepitus and PFP; (iii) to investigate the relationship between knee crepitus with self-reported function, physical activity and pain. DESIGN: Cross-sectional. SETTING: Laboratory-based study. PARTICIPANTS: 165 women with PFP and 158 pain-free women. MAIN OUTCOME MEASURES: Knee crepitus test, anterior knee pain scale (AKPS) and self-reported worst knee pain in the last month, knee pain after 10 squats and knee pain after 10 stairs climbing. RESULTS: Knee crepitus clinical test presented high reliability Kappa value for PFP group was 0.860 and for pain-free group was 0.906. There is a significantly greater proportion of those with crepitus in the PFP group than in the pain-free group (OR = 4.19). Knee crepitus had no relationship with function (rpb = 0.03; p = 0.727), physical activity level (rpb = 0.010; p = 0.193), worst pain (rpb = 0.11; p = 0.141), pain climbing stairs (rpb = 0.10; p = 0.194) and pain squatting (rpb = 0.02; p = 0.802). CONCLUSION:Women who presents knee crepitus have 4 times greater odds to be in a group with PFP compared to those who do not. However, knee crepitus has no relationship with self-reported clinical outcomes of women with PFP.
Authors: Erika K Zambarano; David M Bazett-Jones; Danilo de Oliveira Silva; Christian J Barton; Neal R Glaviano Journal: J Athl Train Date: 2022-01-01 Impact factor: 2.860