Knee muscle strength, body composition, and balance performance of youth soccer players. - França, Cíntia; Martins, Francisco; Lopes, Helder; Marques, Adilson; de Maio Nascimento, Marcelo; Przednowek, Krzysztof; Ihle, Andreas; Campos, Pedro; Gouveia, Élvio Rúbio (BMC Sports Science, Medicine & Rehabilitation, 2024)