Relationship of the vertical ground reaction force and knee abductor moment loading rates with patellofemoral pain

Author(s)

Ronaldo Valdir Briani

• Document type: Master's Dissertation
• Press: Presidente Prudente. 2017-05-31.
• Institution: Universidade Estadual Paulista (Unesp). Faculdade de Ciências e Tecnologia. Presidente Prudente
• Defense date: 2017-05-12
• Advisor: Fábio Mícolis de Azevedo

Abstract

The study of the loading rate of biomechanical alterations in individuals with patellofemoral pain (PFP) has increased recently. One justify the study of this variable because of its relation with articular degenerative injuries, mainly at the knee. However, few studies have been done to understand the relation between the loading rate of the vertical ground reaction force (VGRF) and PFP. In addition, no studies were found in order to investigate the loading rate of specific parameters at the knee joint that are related to the PFP, such as the knee abductor moment (KAM). Therefore, the aims of this dissertation were to investigate the relation between the loading rate of local and global parameters with PFP. Data collection was performed during stair ascent and descent , before and after a loading protocol. The protocol consisted of 15 stair ascent and descent trials with 35% of the body weight allocated in a backpack. The rhythm was controlled by a metronome at 96 steps/min. Self-reported pain was obtained before and after the loading protocol. The average pain level at the last month was also obtained before data collection. In general, our results showed a relation between the loading rate of the VGRF and KAM with PFP. Therefore, interventions should be applied in order to correct these alterations and, consequently, decrease pain. (AU)

• FAPESP's process: 15/00406-2 - Influence of pain on kinetic parameters in individuals with patellofemoral pain during stair ascent
• Grantee: Ronaldo Valdir Briani
• Support Opportunities: Scholarships in Brazil - Master