Application of Change of Direction Deficit to Evaluate Cutting Ability

Abstract

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.

Relationships between Linear Sprint, Lower-Body Power Output and Change of Direction Performance in Elite Soccer Players

“…Moreover, Loturco et al [15] found a statistically significant large positive relationship between 100 • COD deficit and 10-m flying start linear sprint. Unfortunately, Loturco and colleagues [16] did not assess whether these results would be similar in the case of a linear sprint from the standing start. At the same time, Loturco et al [28] revealed differences in the COD deficit between elite soccer players versus handball, rugby and futsal players.…”

“…The solution that can shed new light on the assessment of COD ability, is a measurement of COD deficit. However, to date little attention has been given to the relationship between COD deficit and the performance of the high-intensity actions and COD tests [2,10,15,16]. The COD deficit is an additional time that athletes need, to complete running with a COD in comparison to straight-line sprint at the same distance (e.g., athlete's 20-m sprint time is subtracted from the 20-m COD time).…”

Change of direction asymmetry across different age categories in youth soccer

“…The 90°COD performance was measured by the total running time to complete the 5 m + 5 m course (COD t ), and the fastest trial of each direction was used for further analysis. Furthermore, COD deficit (COD d ) was calculated by subtracting the 10-m sprint time from the COD t ( Cuthbert, Dos’Santos & Jones, 2019 ; Nimphius et al, 2016 ; Trecroci et al, 2020 ).…”

“…In soccer, a number of COD tests have been proposed to monitor COD ability, such as 505 test, modified Illinois COD test, COD and acceleration test, and modified agility T -test ( Cuthbert, Dos’Santos & Jones, 2019 ; Dos’Santos et al, 2019b ; Hachana et al, 2014 ; Lockie et al, 2013 ; Loturco et al, 2019 ; Loturco et al, 2018 ; Sassi et al, 2009 ; Sporis et al, 2010 ). Most of them use the total time to complete the test as an actual measure of the players’ COD ability.…”

Decisive Factors for a Greater Performance in the Change of Direction and Its Angulation in Male Basketball Players

“…These contradictions could be solved by introducing the concept of deficit in COD, where COD action is isolated from linear action within the tests [ 53 ]. While several studies [ 54 , 55 ] have shown the relationship of CODs to the deficit itself, no considerations have been made with linear velocity. Although some authors [ 56 ] still suggest linear velocity to be a determining factor for COD performance, high COD approaching velocities may increase the loads which the knee receives in valgus.…”