Pazzinatto Marcella Ferraz, de Oliveira Silva Danilo, Pradela Juliana, Coura Maira Bergamaschi, Barton Christian, de Azevedo Fábio Mícolis
Physical Therapy Department, University of São Paulo State, School of Science and Technology, Brazil.
School of Allied Health, College of Science, Health and Engineering, La Trobe University, Australia; Centre for Sports and Exercise Medicine, Queen Mary University of London, London, UK.
J Sci Med Sport. 2017 Apr;20(4):362-367. doi: 10.1016/j.jsams.2016.09.004. Epub 2016 Nov 11.
To compare pressure pain threshold (PPT) around the knee (local hyperalgesia) and at a site remote to the knee (widespread hyperalgesia) between female runners with and without patellofemoral pain (PFP); and to evaluate the relationship between running volume, self-reported knee function and PPT measures.
Cross-sectional study.
Twenty female runners with PFP and twenty pain-free female runners participated in the study. PPTs were measured using a handheld pressure algometer at four sites in the patellar region: quadriceps tendon, medial patella, lateral patella and patellar tendon; and on the contralateral upper limb. Additionally, all participants were asked to report their average weekly running volume in a typical month and answer the anterior knee pain scale (AKPS) questionnaire.
For all sites, female runners with PFP presented lower PPT measures in comparison with control group (P<0.017). There were negative correlations between AKPS and running volume (ρ=-0.88; P<0.001) and between all PPTs and the running volume in the PFP group with correlation (ρ) values ranging between -0.46 and -0.70 (P<0.022). There were positive correlations between all PPTs and AKPS with correlation (ρ) value from 0.50 to 0.69 (P<0.030).
Lower PPTs locally and remote to the knee in female runners with PFP indicate the presence of local and widespread hyperalgesia. Additionally, this hyperalgesia, which is related to self-reported knee function, appears to be increased by greater running volumes. Development and evaluation of non-mechanical interventions for the management of running-related PFP in females may be needed to address this apparent hyperalgesia.
比较有和没有髌股疼痛（PFP）的女性跑步者膝关节周围的压力疼痛阈值（PPT）（局部痛觉过敏）以及膝关节远处部位的压力疼痛阈值（广泛痛觉过敏）；并评估跑步量、自我报告的膝关节功能与PPT测量值之间的关系。
横断面研究。
20名患有PFP的女性跑步者和20名无疼痛的女性跑步者参与了该研究。使用手持式压力痛觉计在髌区的四个部位测量PPT：股四头肌腱、髌骨内侧、髌骨外侧和髌腱；以及在对侧上肢。此外，所有参与者被要求报告他们在一个典型月份中的平均每周跑步量，并回答前膝疼痛量表（AKPS）问卷。
对于所有部位，患有PFP的女性跑步者的PPT测量值低于对照组（P<0.017）。AKPS与跑步量之间存在负相关（ρ=-0.88；P<0.001），在PFP组中所有PPT与跑步量之间也存在负相关，相关系数（ρ）值在-0.46至-0.70之间（P<0.022）。所有PPT与AKPS之间存在正相关，相关系数（ρ）值在0.50至0.69之间（P<0.030）。
患有PFP的女性跑步者膝关节局部和远处较低的PPT表明存在局部和广泛的痛觉过敏。此外，这种与自我报告的膝关节功能相关的痛觉过敏似乎会因跑步量增加而加重。可能需要开发和评估用于管理女性跑步相关PFP的非机械干预措施，以解决这种明显的痛觉过敏问题。
