[header] How to train for fighting with isometrics [title] Use proper form for isometric exercises. [step] Proper form is important for all exercises-cardio and strength training combined. However, isometric exercises are somewhat unique and should be performed carefully. 
[substeps] For any isometric exercise you need to hold the required position (as these are static exercises). In addition, you need to tense all muscles involved-both the agonist muscles (those that help you hold the position) and the antagonist muscles (the ones that oppose the position).