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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Female PFP patients present alterations in eccentric muscle activity but not the temporal order of activation of the vastus lateralis muscle during the single leg triple hop test

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Kalytczak, Marcelo Martins [1] ; Garcia Lucareli, Paulo Roberto [1] ; dos Reis, Amir Curcio [1] ; Bley, Andre Serra [1] ; Biasotto-Gonzalez, Daniela Aparecida [1] ; Ferrari Correa, Joao Carlos [1] ; Politti, Fabiano [1]
Total Authors: 7
[1] Univ Nove Julho UNINOVE, Reabil Sci Dept, Human Mot Anal Lab, Sao Paulo, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: GAIT & POSTURE; v. 62, p. 445-450, MAY 2018.
Web of Science Citations: 2

This study aimed to compare the concentric and eccentric activity and the temporal order of peak activity of the hip and knee muscles between women with patellofemoral pain (PFP) and healthy women during the single leg triple hop test (SLTHT). Electromyographic (EMG) and Kinematic data were collected from 14 healthy women (CG) and 14 women diagnosed with PFP (PFG) during a single session of the single leg triple hop test. Integral surface electromyography (iEMG) data of the hip and knee muscles in eccentric and concentric phases and the length of time that each muscle needed to reach the maximal peak of muscle activity were calculated. The iEMG in the eccentric phase was significantly higher (p < 0.05) than the concentric phase, for the gluteus maximus and gluteus medius muscles (CG and PFG) and for the vastus lateralis muscle (PFG). The vastus lateralis muscle was the first muscle to reach the highest peak of activity in the PFG, and the third to reach this peak in the CG. In the present study, the activity of the vastus lateralis muscle during the eccentric phase of the jump was greater than concentric phase, as a temporal anticipation of its peak in activity among women with PFP. (AU)

FAPESP's process: 13/13839-9 - Assessment of pain, cervical mobility and electromyographic activity of the trapezius muscle in nonspecific neck pain patients pre- and post acupuncture treatment: a cross-over, controlled and randomized blind study
Grantee:Fabiano Politti
Support Opportunities: Regular Research Grants