Abstract
In basketball, the most common injuries are ankle sprains. For this reason, players frequently use external ankle devices or taping as prophylactic and rehabilitation measures. The purpose of this study was to evaluate ground reaction force (GRF) responses in basketball players while performing typical cutting maneuvers with and without ankle bracing and ankle taping. Comparative study with experimental design of single-group repeated measurements, at Medical Rehabilitation Division, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo. Vertical (Fy) and medial-lateral (Fz) GRF measurements were made under three conditions (taping, Aircast-type orthosis and basketball shoes alone), with analysis of peak forces at foot contact (Fymax1, Fzmax1, Fymax2 and Fzmax2), growth gradient (peak/time) (GG Fymax1, GG Fzmax1, GG Fymax2 and GG Fzmax2) and impulse after foot contact. Bracing significantly reduced Fymax2 and GG Fymax2. GG Fzmax1 was significantly higher for the sport shoe condition than for the taping condition. Taping increased Fy in relation to the sport shoe at foot contact, but over a longer time interval, without increasing excessive ankle loading. Fz reached a peak in less time, which might generate greater inversion/eversion loading on a player's foot. The Aircast exerted better shock-absorbing effect than did the other two conditions, since it generated less vertical force over longer time intervals and smaller medial-lateral forces in relation to taping. Ankle bracing and ankle taping action mechanisms are still unclear and therefore should be carefully prescribed. More studies are needed to clarify taping and bracing effects on sporting activities.
Highlights
Sport injuries are one of the most common types of injury in modern Western societies
Vertical (Fy) and medial-lateral (Fz) ground reaction force (GRF) measurements were made under three conditions, with analysis of peak forces at foot contact (Fymax[1], Fzmax[1], Fymax[2] and Fzmax2), growth gradient (GG Fymax[1], GG Fzmax[1], GG Fymax[2] and GG Fzmax2) and impulse after foot contact
Table 2 shows the means, standard deviations and percentage distributions of the demographic and basketball-related variables for the subjects evaluated in this study
Summary
Sport injuries are one of the most common types of injury in modern Western societies. Their treatment is difficult, and costly and lengthy. The use of preventive measures is justified, from both an economic and a medical standpoint.[1] For such prevention to be effective, the etiology, risk factors and main injury mechanisms need to be understood. The ankle is the segment most frequently injured, and inversion sprains present the highest injury incidence rate. The ankle injury rate is 3.85 per 100 participations, with approximately half (45.9%) of the players kept away from competition for a week or more.[2] It is common to observe players using prophylactic measures, such as taping, wrapping, orthoses and other measures, either as sprain prevention or as rehabilitation
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