期刊
ARCHIVES OF PHYSICAL MEDICINE AND REHABILITATION
卷 100, 期 3, 页码 514-519出版社
W B SAUNDERS CO-ELSEVIER INC
DOI: 10.1016/j.apmr.2018.06.024
关键词
Knee; Inhibition; Motor neurons; Rehabilitation; Stretch reflex
资金
- Sao Paulo Research Foundation - FAPESP [2016/50320-0, 2014/10839-0, 2015/10631-3, 2016/19784-0]
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [16/50320-0] Funding Source: FAPESP
Objectives: The aims of this study were threefold: (1) to compare the amplitude of patellar tendon reflex (T-reflex) between women with patellofemoral pain (PFP) and pain-free controls; (2) to compare the amplitude of vastus medialis Hoffmann reflex (VM H-reflex) between women with PFP and pain-free controls; (3) to investigate the association between the amplitude of patellar T-reflex and VM H-reflex in women with PFP and pain-free controls. Design: Cross-sectional observational study. Setting: Laboratory of biomechanics and motor control. Participants: Thirty women with PFP and 30 pain-free women aged 18 to 35 years (N=60). Main Outcome Measures: Peak-to-peak amplitudes of maximal VM H-reflex (elicited via electrical stimulation on the femoral nerve) and patellar T-reflex (elicited via mechanical percussion on the patellar tendon) were estimated. Results: Women with PFP had significant lower amplitude of patellar T-reflex (mean difference=0.086; 95% confidence interval=0.020 to 0.151; P=.010; moderate effect) and VM H-reflex (mean difference = 0.150; 95% confidence interval = 0.073 to 0.227; P<.001; large effect) compared to pain-free controls. The VM H-reflex was strongly correlated with patellar T-reflex in both PFP group (r=0.66; P<.001) and control group (r=0.72; P<.001). Conclusions: As the T-reflex is easier to perform than H-reflex assessments in a clinical setting, it represents a feasible option to assess the impaired excitability of the stretch reflex pathway associated with PFP. (C) 2018 by the American Congress of Rehabilitation Medicine
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