The purpose of this study was to develop a methodology to accurately analyze sprint performance of elite wheelchair basketball (WB) players in their own training context using a laser system and to analyze the velocity curve performed by the players regarding their functional classification and their playing position. Twelve WB players, from the Spanish men’s national team, took part in an oncourt 20-m-sprint test. BioLaserSport® was used to obtain time, mean velocities (Vm), maximum velocities (Vmax), and distances at 90%, 95%, and 98% of their Vmax. Vm and Vmax reached high values in Classes II and III and in the guard playing position. The protocol developed with the laser system makes it possible to obtain a precise velocity curve in short sprints and allows easy analysis of decisive kinematic performance variables in WB players, showing immediate feedback to coaches and players. The normalized data allow an interpretation of how much, where, and when Vmax occurs along the test.
Amelia Ferro, Jorge Villacieros and Javier Pérez-Tejero
Carlos Marta, Ana R. Alves, Pedro T. Esteves, Natalina Casanova, Daniel Marinho, Henrique P. Neiva, Roberto Aguado-Jimenez, Alicia M. Alonso-Martínez, Mikel Izquierdo and Mário C. Marques
= .218 ) in the 1-kg ball throw, 3-kg ball throw, and time-at-20-m test, respectively. There was no significant interaction in the countermovement vertical jump or in the standing long jump. Changes from preintervention to postintervention for the 1-kg ball throw were 5.94% and 5.82%, for the ST and RT
James J. McClain, Gregory J. Welk, Michelle Ihmels and Jodee Schaben
The PACER test is a valid and reliable assessment of aerobic capacity in children. However, many schools lack adequate space to administer the test. This study compared the utility of the standard 20m PACER test with an alternative 15m PACER protocol in 5th and 8th grade students.
A total of 171 students completed both PACER protocols in a counterbalanced design. Agreement between the two protocols was assessed with correlations, repeated-measures ANOVA, and classification agreement into the FITNESSGRAM ® healthy fitness zones.
The difference in estimated VO2max between the two tests was slightly larger for boys (5th grade, 1.32 ml/kg/min; 8th grade, 1.72 ml/kg/min) than girls (5th grade, 0.14 ml/kg/min; 8th grade, 1.11 ml/kg/min), but these differences are probably not of practical significance. Classification agreement was 88% for boys and 91% for girls.
Collectively, the results suggest that the 15m and 20m PACER provide similar information about aerobic fitness in youth. The 20m test is recommended when possible, but the 15m provides a useful alternative for schools with smaller gymnasiums.
height, seated height, and body mass) and 4 physical fitness (countermovement jump for explosive leg power, t test for agility, 10- and 20-m tests for sprint, and multistage fitness test for endurance capacity) assessments were performed. In addition, somatic maturity was assessed by predicted age at
Aitor Iturricastillo, Javier Yanci and Cristina Granados
(Δ% LS–ST) performed in 5- and 20-m tests. * p < .05 significant difference between pre- and post-SSG. In relation to the association between pre and post Δ% change in physical tests and physiological markers, Δ% 5- and Δ% 20-m linear sprint values correlated significantly with Δ% blood lactate ( r