TY - JOUR AU - Altmann, V.C. A2 - Altmann, V.C. A2 - Groen, B.E. A2 - Hart, A.L. A2 - Vanlandewijck, Y.C. A2 - Keijsers, N.L.W. DB - BISp DP - BISp KW - Bauchmuskulatur KW - Behindertensport KW - Behinderter KW - Klassifizierung KW - Korrelationsanalyse KW - Kraft, relative KW - Muskelkraft KW - Oberkörper KW - Rollstuhlsport KW - Rugby KW - Sportmedizin KW - Sportwissenschaft LA - eng TI - Classifying trunk strength impairment according to the activity limitation caused in wheelchair rugby performance TT - Klassifizierung der Beeinträchtigung der Rumpfstärke entsprechend der Aktivitätsbeschränkung, die durch die Rollstuhlrugby-Leistung verursacht wird PY - 2018 N2 - International Federations in Paralympic sports should develop evidence-based classification, based on the relative strength of association between impairment and activities that determine sport-specific performance. The purpose of the current study was to assess the relationship between trunk strength impairment and three activities that determine performance in wheelchair rugby, and to determine whether this relationship supports the concept of “natural classes.” Trunk muscle strength and three determinants of performance were assessed in 27 athletes. The correlations between lateral trunk muscle strength and the determinant tilting the chair, and between forward trunk muscle strength and the determinants 1 m acceleration and sprint momentum were calculated. To group athletes based on impairment, K-means cluster analysis was used to group athletes according to how much trunk muscle strength affected the activities. There were significant, moderate to strong correlations between left-right strength and chair tilting (r=.50), between forward strength and 1 m acceleration (r=.59), and between forward strength and sprint momentum (r=.79). Cluster analysis indicated at least one cut-point in performance with a decrease in impairment in all three wheelchair activities, supporting the concept of “natural classes.” L2 - https://dx.doi.org/10.1111/sms.12921 L2 - https://onlinelibrary.wiley.com/doi/abs/10.1111/sms.12921 DO - 10.1111/sms.12921 SP - S. 649-657 SN - 0905-7188 JO - Scandinavian journal of medicine & science in sports IS - 2 VL - 28 M3 - Elektronische Ressource (online) M3 - Gedruckte Ressource ID - PU201803001738 ER -