Association between trunk muscle endurance with change of direction, lower limb endurance and power performance in the special military police force of Rio de Janeiro (BOPE)

Objective. - The purpose of this study was to investigate the association between trunk muscle endurance with change of direction (T test), single leg squat and power performance in the Special Military Police Force (BOPE) of Rio de Janeiro. Equipments and methods. - One hundred and three military men specialized in Special Opera-tion and Tactical Actions were volunteers. Tests were randomly assigned with a minimum ten minutes rest interval in between. Results. - Weak associations were found between the single leg squat and trunk extension (r =0.268; p = 0.006) as well as right side bridge/trunk extensors (RSB/EXT) (r =0.284; p = 0.004) and left side bridge/trunk extensors (LSB/EXT) ratios (r =-0.242; p = 0.014). The medicine ball throw had a weak association with the left side bridge/extension (LSB/EXT) ratio (r = 0.217; p = 0.28). A weak negative association was found between the T test performance and the right side bridge/left side bridge (RSB/LSB) ratio (r =-0.022; p = .822). Despite the discreet result, hip flexion endurance was the only predictor of performance on the single leg squat (R-2 = 0.063). (C) 2022 Elsevier Masson SAS. All rights reserved.