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There is more to the knee joint than just the quadriceps: A systematic review with meta-analysis and evidence gap map of hamstring strength, flexibility, and morphology in individuals with gradual-onset knee disorders

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Autor(es):
Lopes, Helder S. ; Waiteman, Marina C. ; Priore, Liliam B. ; Glaviano, Neal R. ; Bazett-Jones, David M. ; Briani, Ronaldo, V ; Azevedo, Fabio M.
Número total de Autores: 7
Tipo de documento: Artigo Científico
Fonte: JOURNAL OF SPORT AND HEALTH SCIENCE; v. 13, n. 4, p. 16-pg., 2024-06-01.
Resumo

Background: Impairments in hamstring strength, flexibility, and morphology have been associated with altered knee biomechanics, pain, and function. Determining the presence of these impairments in individuals with gradual-onset knee disorders is important and may indicate targets for assessment and rehabilitation. This systematic review aimed to synthesize the literature to determine the presence of impairments in hamstring strength, flexibility, and morphology in individuals with gradual-onset knee disorders. Methods: Five databases (MEDLINE, Embase, CINAHL, SPORTDiscus, and Web of Science) were searched from inception to September 2022. Only studies comparing hamstring outcomes (e.g., strength, flexibility, and/or morphology) between individuals with gradual-onset knee disorders and their unaffected limbs or pain-free controls were included. Meta-analyses for each knee disorder were performed. Outcome-level certainty was assessed using the Grading of Recommendations Assessment, Development, and Evaluation, and evidence gap maps were created. Results: Seventy-nine studies across 4 different gradual-onset knee disorders (i.e., knee osteoarthritis (OA), patellofemoral pain (PFP), chondromalacia patellae, and patellar tendinopathy) were included. Individuals with knee OA presented with reduced hamstring strength compared to pain-free controls during isometric (standard mean difference (SMD) = -0.76, 95% confidence interval (95%CI) : -1.32 to -0.21) and concentric contractions (SMD = -0.97, 95%CI : -1.49 to -0.45). Individuals with PFP presented with reduced hamstring strength compared to painfree controls during isometric (SMD = -0.48, 95%CI : -0.82 to -0.14), concentric (SMD = -1.07, 95%CI : -2.08 to -0.06), and eccentric contractions (SMD = -0.59, 95%CI : -0.97 to -0.21). No differences were observed in individuals with patellar tendinopathy. Individuals with PFP presented with reduced hamstring flexibility when compared to pain-free controls (SMD = -0.76, 95%CI : -1.15 to -0.36). Evidence gap maps identified insufficient evidence for chondromalacia patellae and hamstring morphology across all gradual-onset knee disorders. Conclusion: Our findings suggest that assessing and targeting impairments in hamstring strength and flexibility during rehabilitation may be recommended for individuals with knee OA or PFP. (AU)

Processo FAPESP: 20/14715-5 - Influência do peso ou composição corporal na condição clínica, biomecânica e muscular de indivíduos com dor femoropatelar: um estudo prospectivo
Beneficiário:Fábio Mícolis de Azevedo
Modalidade de apoio: Auxílio à Pesquisa - Regular
Processo FAPESP: 21/08644-0 - Estudo da densidade mineral óssea de corredores e não corredores com e sem dor femoropatelar
Beneficiário:Ronaldo Valdir Briani
Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
Processo FAPESP: 21/09393-1 - Caracterização clínica e biomecânica da Dor femoropatelar pós-traumática: Comparação com indivíduos assintomáticos e indivíduos com Dor femoropatelar de início insidioso
Beneficiário:Helder dos Santos Lopes
Modalidade de apoio: Bolsas no Brasil - Mestrado