Lora for Wan Video to have the subject perform a bodybuilder ab crunch pose.

Add ab crunch pose to your prompt.

I typically use Euler Simple with:

  High - CFG 1.5 / 5 Steps / 0.85 Strength

  Low - CFG 1.0 / 5 Steps / 0.80 Strength

I use this with the Wan Lightning Lora, the High at 1.75 and the Low at 1.0