Annemarie M.H. de Witte, Fleur Sjaarda, Jochem Helleman, Monique A.M. Berger , Lucas H.V. van der Woude, Marco J.M. Hoozemans
Faculty health, nutrition and sport, The Hague University of Applied Science, 2533SR Den Haag, The Netherlands. E-mail: a.m.h.dewitte@hhs.nl
DOI: 10.2340/16501977-2341

Objective: The Wheelchair Mobility Performance (WMP) test is a reliable and valid measure to assess mobility performance in wheelchair basketball. The aim of this study was to examine the sensitivity to change of the WMP test by manipulating wheelchair configurations.
Methods: Sixteen wheelchair basketball players performed the WMP test 3 times in their own wheelchair: (i) without adjustments (“control condition”); (ii) with 10 kg additional mass (“weighted condition”); and (iii) with 50% reduced tyre pressure (“tyre condition”). The outcome measure was time (s). If paired t-tests were significant (p < 0. 05) and differences between conditions were larger than the standard error of measurement, the effect sizes (ES) were used to evaluate the sensitivity to change. ES values ≥0. 2 were regarded as sensitive to change.
Results: The overall performance times for the manipulations were significantly higher than the control condition, with mean differences of 4. 40 s (weight – control, ES = 0. 44) and 2. 81 s (tyre – control, ES = 0. 27). The overall performance time on the WMP test was judged as sensitive to change. For 8 of the 15 separate tasks on the WMP test, the tasks were judged as sensitive to change for at least one of the manipulations.
Conclusion: The WMP test can detect change in mobility performance when wheelchair configurations are manipulated.

In this study we measured the performance times on the Wheelchair Mobility Performance (WMP) test during different test conditions to see if the performance times changed when wheelchair settings were changed. The overall performance time on the WMP test increased when the tire pressure was reduced and also when extra mass was attached to the wheelchair. It can be concluded that the WMP test is sensitive to changes in wheelchair settings. It is recommended to use this field-based test in further research to investigate the effect of wheelchair settings on mobility performance time.

Appendix S1
Table I