OBJETIVO: Analisar os efeitos do esforço físico de partida de futebol na capacidade funcional e estabilidade dos membros inferiores em jovens jogadores de futebol. MÉTODOS: Foram analisados 10 atletas jogadores de futebol submetidos a avaliação da capacidade funcional dos membros inferiores através de um protocolo de Hop Test e avaliação do nível de estabilidade postural através do Biodex Stability System (Biodex, Inc., Shirley, Nova Iorque), antes e imediatamente após um tempo de jogo amistoso de futebol de campo com duração de 45 minutos. RESULTADOS: Após a partida, ocorreu uma diminuição no índice de estabilidade global (F(1,23) = 7,29 P = .024) e índice anteroposterior (APSI) (F(1,23) = 5,53 P = .043). A fadiga no membro dominante foi a responsável pelo déficit significativo no OSI (F(1,23) = 3.16, P = .047) e APSI (F(1,23) = 3.49, P = .029), enquanto o membro não-dominante não gerou qualquer alteração na condição pré e pós- jogo. CONCLUSÃO: Uma partida de futebol pode causar diminuição da estabilidade e capacidade funcional dos membros inferiores em jovens jogadores. Nível de evidência iii, pré-teste e pós-teste (caso-controle).

OBJECTIVE: Analyze the effects of physical exertion during a soccer match on the functional capacity and stability of the lower limbs of young soccer players. METHODS: We analyzed 10 soccer players who underwent functional capacity assessment of the lower limbs by a Hop Test protocol and evaluation of the level of postural stability in the Biodex Stability System (Biodex, Inc., Shirley, NY) before and immediately after a friendly game lasting 45 minutes. RESULTS: After the match, there was a decrease in overall stability index (F (1,23) = 7.29 P = .024) and anterior posterior index (APSI) (F(1,23) = 5.53 P = .043). Fatigue in the dominant limb was responsible for the significant deficit in OSI (F(1,23) = 3.16, P = .047) and APSI (F(1,23) = 3:49, P = .029), while the non-dominant limb did not cause any change in the pre and post-game. CONCLUSION: A football match can cause decreased stability and functional capacity of the lower limbs in young players. Level of evidence iii, pre-test and post-test study (case-control).

OBJECTIVE: Most injuries occur during the final 15 minutes of each half of a soccer match, suggesting that physical exertion may influence changes in neuromuscular control and the body's ability to stabilize the joints of the lower extremities. The aim of this study was to analyze the effects of one-half of a soccer match on the functional capacity and stability of the lower limbs in young soccer players. METHODS: We analyzed 27 soccer players by evaluating the functional capacity of their lower limbs using the hop test protocol and their level of postural stability using the Biodex Stability System. The evaluations were performed before and after 45 minutes of game time. RESULTS: After the match, there was a decrease in the overall stability index (OSI) (F(1,23) = 5.64, p = 0.026) and the anterior-posterior stability index (APSI) (F(1,23) = 5.24,p = 0.032). In the single and triple hop tests, there was a higher functional capacity in the dominant limb compared to the non dominant limb in the pre- and post-game comparisons. CONCLUSION: The results of this study show that there is a decrease in the stability of the lower limbs in young soccer players after a 45 minutes soccer match, but the same result was not found for the functional capacity.

OBJETIVO: Definir zona de segurança para evitar possíveis complicações vasculares e ligamentares durante a reconstrução do ligamento cruzado anterior. MÉTODOS: Reconstrução artroscópica com uso de técnica transportal e transtibial em joelhos de cadáver foi realizada seguida de dissecção e mensuração da distância entre o túnel femoral e a inserção proximal do ligamento colateral lateral e o túnel femoral e a artéria genicular lateral superior. RESULTADOS: A mensuração das distâncias analisadas mostra uma aproximação maior do principal ramo da artéria genicular lateral superior e da inserção proximal do ligamento colateral lateral com o túnel femoral, realizado com a técnica transportal. CONCLUSÃO: Percebemos que o uso da técnica transportal para reconstrução artroscópica do LCA apresenta maior probabilidade de lesão da artéria genicular lateral e da inserção do ligamento colateral lateral, favorecendo complicações pós-cirúrgicas como instabilidade do joelho, osteonecrose do côndilo femoral lateral e ligamentização do enxerto.

OBJECTIVE: Define a security zone to avoid possibles vascular and ligamentar complications during anterior cruciate ligament reconstruction. METHODS: Arthroscopic reconstruction using the transtibial and transportal technique in cadaver knees was performed followed by dissection and measurement of the distance between the femoral tunnel and the proximal attachment of the lateral collateral ligament and the femoral tunnel and the lateral superior genicular artery. RESULTS: The measure of the analysed distances show us an aproximation between the major branch of the lateral superior genicular artery and the femoral insertion of the colateral lateral ligament and the femoral tunnel during the transportal technique. CONCLUSION: We realize that the use of technical ship it to arthroscopic ACL reconstruction has a higher probability of injury to the lateral geniculate artery and insertion of the lateral collateral ligament, promoting post-surgical complications such as instability of the knee, osteonecrosis of the femoral condyle and ligamentização graft.