Performance, reliability and fatigue in prone bridge test and supine unilateral bridge test

•The reliability values of the prone bridge test and supine unilateral bridge test are between good and excellent.•Young individuals who practice resisted exercises remain for a longer time in the prone bridge test.•Fatigue in the muscles during the prone bridge test and supine unilateral bridge test presented the same pattern.•The time until fatigue demonstrated difference in this fatigue pattern and may require strategies to sustain the position.