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Fatores preditivos da dor crónica no joelho em praticantes de corrida
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Contextualização: A dor crónica no joelho é uma das queixas musculoesqueléticas mais prevalentes entre praticantes de corrida recreativa, comprometendo a continuidade da prática desportiva e a qualidade de vida. Apesar da elevada incidência, os fatores que contribuem para a sua persistência permanecem pouco esclarecidos. Objetivo: Identificar os fatores sociodemográficos, clínicos e de treino associados à presença de dor crónica no joelho em corredores recreativos. Métodos: Realizou-se um estudo transversal com aplicação de um questionário online que integrou o Knee Osteoarthritis Pre-Screening Questionnaire (KOPS). A amostra final incluiu 356 corredores recreativos (60,8% homens; idade média = 40,5 ± 11,8 anos). Foram conduzidas análises descritivas e inferenciais, incluindo testes do Qui-quadrado, Mann-Whitney U e regressão logística binária. Resultados: A prevalência de dor crónica no joelho foi de 32,6%. Dois preditores independentes foram identificados: o historial de lesão ou cirurgia incapacitante dos membros inferiores (OR = 2,19; IC95%: 1,30–3,70; p = 0,003) e o volume de prática desportiva (p = 0,027). Participantes com antecedentes clínicos apresentaram mais do dobro da probabilidade de dor crónica, e volumes mais elevados de treino associaram-se a maior risco desta condição. Sexo feminino, participação em provas longas e posições profissionais exigentes apresentaram associações bivariadas, mas não se mantiveram no modelo multivariado. Conclusão: A dor crónica no joelho em corredores recreativos apresenta natureza multifatorial, sendo influenciada sobretudo pela carga cumulativa de treino e por antecedentes clínicos. A monitorização individualizada da carga, a reabilitação adequada após lesão e estratégias preventivas personalizadas podem reduzir o risco de dor persistente nesta população.
Background: Chronic knee pain is one of the most frequent musculoskeletal complaints among recreational runners, often compromising training continuity and quality of life. Despite its prevalence, the factors contributing to persistent knee pain remain insufficiently understood. Objective: To identify sociodemographic, clinical, and training-related factors associated with chronic knee pain in recreational runners. Methods: A cross-sectional study was conducted using an online questionnaire incorporating the validated Knee Osteoarthritis Pre-Screening Questionnaire (KOPS). The final sample included 356 recreational runners (60.8% male; mean age = 40.5 ± 11.8 years). Descriptive and inferential analyses were performed, including Chi-square tests, Mann–Whitney U tests, and binary logistic regression. Results: The prevalence of chronic knee pain was 32.6%. Two independent predictors were identified: previous injury or disabling lower-limb surgery (OR = 2.19; 95% CI: 1.30–3.70; p = 0.003) and training volume (p = 0.027). Runners with a clinical history of injury were more than twice as likely to report chronic knee pain, and higher cumulative training volumes increased the likelihood of this condition. Female sex, participation in long-distance events, and prolonged occupational postures showed significant bivariate associations but did not remain in the multivariate model. Conclusion: Chronic knee pain in recreational runners is multifactorial and predominantly influenced by cumulative training load and previous injury. Individualised load monitoring, adequate rehabilitation after injury, and targeted preventive strategies may reduce the risk of persistent knee pain in this population.
Background: Chronic knee pain is one of the most frequent musculoskeletal complaints among recreational runners, often compromising training continuity and quality of life. Despite its prevalence, the factors contributing to persistent knee pain remain insufficiently understood. Objective: To identify sociodemographic, clinical, and training-related factors associated with chronic knee pain in recreational runners. Methods: A cross-sectional study was conducted using an online questionnaire incorporating the validated Knee Osteoarthritis Pre-Screening Questionnaire (KOPS). The final sample included 356 recreational runners (60.8% male; mean age = 40.5 ± 11.8 years). Descriptive and inferential analyses were performed, including Chi-square tests, Mann–Whitney U tests, and binary logistic regression. Results: The prevalence of chronic knee pain was 32.6%. Two independent predictors were identified: previous injury or disabling lower-limb surgery (OR = 2.19; 95% CI: 1.30–3.70; p = 0.003) and training volume (p = 0.027). Runners with a clinical history of injury were more than twice as likely to report chronic knee pain, and higher cumulative training volumes increased the likelihood of this condition. Female sex, participation in long-distance events, and prolonged occupational postures showed significant bivariate associations but did not remain in the multivariate model. Conclusion: Chronic knee pain in recreational runners is multifactorial and predominantly influenced by cumulative training load and previous injury. Individualised load monitoring, adequate rehabilitation after injury, and targeted preventive strategies may reduce the risk of persistent knee pain in this population.
Descrição
Mestrado em Exercício e Saúde. Universidade de Lisboa. Faculdade de Motricidade Humana
Palavras-chave
Chronic pain Knee KOPS Injuries Running Training Corrida Dor crónica Joelho Lesões KOPS Treino