Th e a p plic a tio n of c h a n g e of di r e c tio n d eficit t o e v al u a t e c u t ti n g a bility C u t h b e r t , M, Do s' S a n t o s, T, T ho m a s, C a n d Jon e s, PA h t t p:// dx. doi.o r g/ 1 0. 1 5 1 9/JSC.0 0 0 0 0 0 0 0 0 0 0 0 2 3 4 6 Ti t l e Th e a p plic a tio n of c h a n g e of di r e c tio n d eficit t o e v al u a t e c u t ti n g a bility A u t h o r s C u t h b e r t, M, Do s ' S a n t o s , T, Tho m a s , C a n d Jon e s, PA Typ e Articl e U RL This ve r sio n is a v ail a bl e a t : h t t p:// u sir.s alfo r d. a c. u k/id/ e p ri n t/ 4 4 2 7 0/ P u b l i s h e d D a t e 2 0 1 7 U SIR is a di git al c oll e c tio n of t h e r e s e a r c h o u t p u t of t h e U niv e r si ty of S alfo r d. W h e r e c o py ri g h t p e r mi t s, full t e x t m a t e ri al h el d in t h e r e p o si to ry is m a d e fr e ely a v ail a bl e o nli n e a n d c a n b e r e a d , d o w nlo a d e d a n d c o pi e d fo r n o nc o m m e r ci al p riv a t e s t u dy o r r e s e a r c h p u r p o s e s . Pl e a s e c h e c k t h e m a n u s c ri p t fo r a n y fu r t h e r c o py ri g h t r e s t ri c tio n s. Fo r m o r e info r m a tio n, in cl u di n g o u r p olicy a n d s u b mi s sio n p r o c e d u r e , pl e a s e c o n t a c t t h e R e p o si to ry Te a m a t: u si r@ s alfo r d. a c. u k . 1 The application of change of direction deficit to evaluate cutting ability. 2 ABSTRACT The purpose of this study was to examine the application of the change of direction deficit (CODD) to a 90° cut test in order to examine whether CODD provides a unique evaluation of an individual's cutting ability. Thirty-six male collegiate team-sport (23 Rugby/ 13 Soccer) athletes (age: 20 ± 1.4 years; height: 1.80 ± 0.08 m; mass: 83 ± 13.2 kg) participated in the study. Each athlete performed 3 trials of a 20 m sprint (with 5 m and 10 m splits) and 2 change of direction [COD] tests (90° cut and 505 tests) cutting/ turning from both limbs.Completion times for all sprint and COD tests were measured using timing cells. For both COD tests, CODD was determined (COD completion time -10 m sprint time). Pearson's correlation was used to explore relationships between sprint times and CODD and completion times. Significant (P < 0.001) moderate to large (r ≥ 0.467) correlations between sprint times and 90°cut completion times for left and right cuts were observed. Non-significant (P > 0.05) trivial to small correlations (r ≤ 0.199) were found between sprint variables and 90° cut CODD. Significant (P < 0.001) large to very large correlations (r ≥ 0.531) were revealed between left and right 90° cut and 90° cut CODD. The results suggest the CODD could be applied to isolate and assess cutting ability in COD speed tests that involve a single cutting maneuver. Failure to inspect CODD could lead to incorrect evaluation of an athletes cutting or COD ability.