BackgroundSarcopenic obesity is associated with disability in older people, especially in women. Resistance exercises are recommended for this population, but their efficacy is not clear.ObjectiveTo evaluate the effects of a progressive resistance exercise program with high-speed component on the physical function of older women with sarcopenic obesity.MethodTwenty-eight women 65 to 80 years old, with a body mass index ≥30kg/m2 and handgrip strength ≤21kg were randomly allocated to two groups. The experimental group underwent a 10-week resistance exercise program designed to improve strength, power, and endurance of lower-limb muscles, with open chain and closed chain exercises. The control group had their health status monitored through telephone calls. The primary outcomes were lower limb muscle performance measured by knee extensor strength, power and fatigue by isokinetic dynamometry, and mobility measured by the Short Physical Performance Battery and by gait velocity. The secondary outcome was health-related quality of life assessed by the SF-36 Questionnaire.ResultsThe average rate of adherence was 85%, with few mild adverse effects. There were no significant between-group differences for any of the outcomes.ConclusionIn this study, a progressive resistance exercise program with high-speed component was not effective for improving the physical function of older women with sarcopenic obesity.

RESUMOContextualização: A osteoartrite (OA) de joelho é uma doença crônica que acomete a cartilagem articular, provocando alterações ósseas, dor e rigidez à movimentação. A obesidade é um dos seus principais fatores de risco. As queixas de dificuldades funcionais são freqüentes, especialmente para a locomoção, que se torna mais lenta. Com os crescentes níveis de obesidade no Brasil, torna-se importante compreender como a OA de joelho afeta a capacidade funcional humana, a fim de se elaborar medidas de tratamento e prevenção. Objetivo: Analisar a influência da intensidade de dor, gravidade radiográfica, grau de obesidade e duração dos sintomas na capacidade funcional de indivíduos obesos com OA de joelho. Método: A intensidade de dor foi medida pelo questionário Western Ontario and McMaster Universities Index (WOMAC) e durante os testes funcionais. A gravidade radiográfica foi analisada pela classificação Kellgren-Lawrence e o grau de obesidade pelo índice de massa corporal (IMC). Foram realizados quatro testes funcionais de velocidade: marcha usual e rápida, subir e descer escadas. Resultados: A amostra foi constituída de 31 mulheres e 4 homens, com idade média de 51,65 ± 10,72 anos e IMC médio de 41,16 ± 8,37 kg/m 2 . As atividades em escadas estavam associadas a níveis mais intensos de dor. Apenas a intensidade de dor apresentou correlações significativas com os resultados nos testes de velocidade. Conclusão: A intensidade de dor é um fator que influencia a realização de atividades funcionais em indivíduos obesos com OA de joelho, mas outros estudos são necessários para identificar os fatores determinantes de capacidade funcional nesta população.Palavras-chave: obesidade, osteoartrite de joelho, dor, capacidade funcional. ABSTRACT Relationship Between Pain Intensity and Functional Capacity of Obese Individuals With Knee OsteoarthritisBackground: Knee osteoarthritis is a chronic disease that affects joint cartilage, causing bone structure alterations, pain and stiffness during movement. Obesity is one of its principal risk factors. Complaints about functional disability are frequent, especially for locomotion activities, which people with knee osteoarthritis perform slower. With the increasing levels of obesity in Brazil, it is important to understand how knee osteoarthritis affects human functional capacity, in order to devise treatment and prevention measures. Objective: To examine the influence of pain intensity, radiographic severity, obesity level and symptom duration on the functional capacity of obese individuals with knee osteoarthritis. Method: Pain intensity was measured using the Western Ontario and McMaster Universities Index (WOMAC) questionnaire and during functional capacity tests. Radiographic severity was analyzed using the Kellgren-Lawrence classification and the obesity level was assessed using body mass index (BMI). Four functional velocity tests were performed: usual gait, fast gait, ascending stairs and descending stairs. Results: The sample consisted of 31 women and 4 men, with mean age o...