Basketball lay-up - foot loading characteristics and the number of trials necessary to obtain stable plantar pressure variables
(Basketball-Lay-up - Fußbelastungs-Eigenschaften und die Anzahl der notwendig Versuche, um stabile Plantar-Druck-Variablen zu erhalten)
This study aimed (1) to profile the plantar loading characteristics when performing the basketball lay-up in a realistic setting and (2) to determine the number of trials necessary to establish a stable mean for plantar loading variables during the lay-up. Thirteen university male basketball players [age: 23.0 (1.4) years, height: 1.75 (0.05) m, mass: 68.4 (8.6) kg] performed ten successful basketball lay-ups from a stationary position. Plantar loading variables were recorded using the Novel Pedar-X in-shoe system. Loading variables including peak force, peak pressure, and pressure-time integral were extracted from eight foot regions. Performance stability of plantar loading variables during the take-off and landing steps were assessed using the sequential averaging technique and intra-class correlation coefficient (ICC). High plantar loadings were experienced at the heel during the take-off steps, and both the heel and forefoot regions upon landing. The sequential estimation technique revealed a five-eight trial range to achieve a stable mean across all plantar loading variables, whereas ICC analysis was insensitive to inter-trial differences of repeated lay-up performances. Future studies and performance evaluation protocols on plantar loading during basketball lay-ups should include at least eight trials to ensure that the measurements obtained are sufficiently stable. ABSTRACT FROM AUTHOR
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Schlagworte: | Biomechanik Basketball Längsschnittuntersuchung Fuß Schuh Belastung |
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Notationen: | Trainingswissenschaft Spielsportarten |
DOI: | 10.1080/14763141.2016.1174288 |
Veröffentlicht in: | Sports Biomechanics |
Veröffentlicht: |
2017
|
Jahrgang: | 16 |
Heft: | 1 |
Seiten: | 13-22 |
Dokumentenarten: | Artikel |
Sprache: | Englisch |
Level: | hoch |