1. Extended opposite elbow-to-knee crunch For achieving a midsection burn, certified personal trainer, Morgan Rees, says there are multiple methods for attacking the abs. Her grueling extended ...

Exhale as you twist and bring your elbow toward your knee ... Progression and variations • Add resistance: Hold a small weight or medicine ball while performing the crunch.

Having your hands on your thighs can minimise potential movement in the shoulders – it’s up to you which variation ... and crunch with your right elbow aiming towards your left knee.

The exercise is a variation of an ab crunch ... and tense your abs at the same time so that your left elbow rises to touch your right knee, then your right elbow rises to meet your left knee.