title: Supination control increases performance in sideward cutting movements in tennis.
abstract: The objective of this study was to explore the effects of tennis shoe characteristics on performance during sideward cutting movements followed by direction changes. Five tennis players (age = 21.5 +/- 0.8 years, mass = 75.2 +/- 2.8 kg, and height = 1.78 +/- 0.05 m) participated in the study and 10 tennis shoes were tested. Several footwear mechanical parameters were analyzed: Shore A hardness, longitudinal and transverse flexibility, midsole height at heel, presence of heel counters, and weight. A force plate was used to measure the kinetic variables, and two video cameras were used to perform a three-dimensional photogrammetric analysis. Results revealed that subject-footwear interaction was statistically not significant (p > 0.05) for the kinetic and kinematic variables. Only contact time (p = 0.008) and supination movement (p = 0.009) were footwear dependent. Positive correlations between contact time and first supination peak (r = 0.783, p = 0.007) and second supination peak (r = 0.730, p = 0.016) were observed. Impulse was not changed, which means shoes limiting supination allowed tennis players to perform faster sideward cutting movements.
authors.affiliation: Department of Sport and Physical Education, University of Valencia, Valencia, Spain. salvador.llana@uv.es
authors.forename: Salvador
authors.initials: S
authors.lastname: Llana-Belloch
authors.forename: Gabriel
authors.initials: G
authors.lastname: Brizuela
authors.forename: Pedro
authors.initials: P
authors.lastname: Pérez-Soriano
authors.forename: Ana C
authors.initials: AC
authors.lastname: García-Belenguer
authors.forename: Miguel
authors.initials: M
authors.lastname: Crespo
mesh_terms: D000328:Adult; D054874:Athletic Performance / Q000502:physiology*; D001696:Biomechanical Phenomena / Q000502:physiology; D006801:Humans; D008297:Male; D010780:Photogrammetry; D012775:Shoes; D013484:Supination / Q000502:physiology*; D013715:Tennis / Q000502:physiology*; D055815:Young Adult