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Patellofemoral joint stress and vertical loading rates during forefoot striking, increasing step rate, and forward trunk lean running

Grant number: 15/20306-2
Support Opportunities:Scholarships abroad - Research Internship - Doctorate
Effective date (Start): February 21, 2016
Effective date (End): December 20, 2016
Field of knowledge:Health Sciences - Physiotherapy and Occupational Therapy
Principal Investigator:Fábio Viadanna Serrão
Grantee:Ana Flávia dos Santos
Supervisor: Reed Ferber
Host Institution: Centro de Ciências Biológicas e da Saúde (CCBS). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
Research place: University of Calgary, Canada  
Associated to the scholarship:13/26318-7 - Effects of running technique modification on lower limb kinematics and muscle activation in runners with and without patellofemoral pain, BP.DR


The number of runners has increased over the world in recent years. Every year, up to 70% of runners related some musculoskeletal injury. It is known that a half of injuries that occur as a result of this activity involve the knee joint and, Patellofemoral Pain (PFP) is the most common injury. Recently, some running technique modifications (landing with the forefoot on the ground, increasing 10% of the step rate (steps/minute) and increasing the forward trunk lean) showed potential to reduce the vertical impact loading rates, the demand on the knee joint and the patellofemoral joint stress (PFJS). However, no study had evaluated these effects during the same protocol. Our purpose is to analyze the immediate effects of these techniques in vertical impact peak, average vertical loading rate, knee extensor moment, knee adduction moment, hip abduction moment and PFJS in healthy runners. The techniques will be evaluated at a random order on an instrumented treadmill (Bertec, Columbus, OH, USA). For data analysis, multivariate analysis of variance (MANOVA) with repeated measures will be used to compare running conditions. A significance level of 5% will be considered for all comparisons. It is important to investigate the effects of different running techniques on lower limb biomechanics in order to improve injury prevention and rehabilitation programs. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
DOS SANTOS, ANA FLAVIA; NAKAGAWA, THERESA HELISSA; SERRAO, FABIO VIADANNA; FERBER, REED. Patellofemoral joint stress measured across three different running techniques. GAIT & POSTURE, v. 68, p. 37-43, . (13/26318-7, 15/20306-2)

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