Banca de QUALIFICAÇÃO: PEDRO HENRIQUE ARAGAO CARNEIRO

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : PEDRO HENRIQUE ARAGAO CARNEIRO
DATE: 22/07/2025
TIME: 09:00
LOCAL: Vídeo-conferência
TITLE:

ANALYSIS OF THE RELATIONSHIP BETWEEN THE STRENGTH OF THE MUSCLES ACTING ON THE KNEE AND THE BALANCE OF INDIVIDUALS WITH OSTEOARTHRITIS: A PILOT OF A CROSS-SECTIONAL STUDY.

KEY WORDS:

osteoarthritis; muscle strength, balance

PAGES: 30
BIG AREA: Ciências da Saúde
AREA: Fisioterapia e Terapia Ocupacional
SUMMARY:

Knee osteoarthritis (KOA) is a degenerative joint condition characterized by pain, stiffness, effusion, synovial inflammation, and decreased strength of the muscles that interact with the joint. KOA progresses with cartilage degradation, bone remodeling, osteophyte formation, and synovial inflammation, all of which affect sensorimotor abilities. It is believed that, in addition to reduced muscle strength, impairment of joint mechanoreceptors may affect proprioceptive and sensorimotor capabilities, and consequently, balance. Objective: To analyze the relationship between muscle strength and balance in individuals with KOA. Materials and methods: This is a cross-sectional study with a quantitative approach, involving women with KOA. The muscle strength of the quadriceps, hamstrings, hip abductors, and hip adductors will be assessed using a manual isometric dynamometer (model: MedEOR Medtech®). Balance variables will be assessed using the following: elliptical area (cm2), displacement (cm), amplitude (cm), and velocity (cm/s) in the anteroposterior (AP) and mediolateral (ML) directions using the BioMec410 EMGSystem® force platform. The Western Ontario and McMaster Universities (WOMAC) scale will be used to assess symptoms related to knee osteoarthritis; the Tampa scale will be used to assess kinesiophobia; and the NST will be used to assess pain. Functional tests such as the Timed Up and Go (TUG) and the 30-second sit-to-stand test (TSL) will also be performed. Data analysis will be performed using SPSS 22.0, using correlation measures between variables. Preliminary results: A pilot study was conducted with 11 women with knee osteoarthritis, with a mean age of 63.3 years, a mean BMI of 28.17, and a mean pain score of 4.22. They had a mean kinesiophobia score of 41 and an average of approximately 10 repetitions on the sit-to-stand test. Higher levels of knee extension strength were associated with smaller center of pressure displacements (p=<0.01), indicating that extensor strength may contribute to greater body stability. Similarly, lower sway velocities in the mediolateral direction correlated with a smaller elliptical sway area, reflecting better postural control. Conversely, no correlation was observed between muscle strength and function and performance instruments such as WOMAC and TSL, nor between them and balance. This may have been due to the small sample size for this pilot study, and future data may further clarify these relationships.

COMMITTEE MEMBERS:
Presidente - 4964489 - CLECIO GABRIEL DE SOUZA
Interno - 2275864 - CAIO ALANO DE ALMEIDA LINS
Externa à Instituição - PAULA SERRÃO - UFSCAR