I have read that doing 30 minutes of cardio consumes several energy, and doing more than 30 minutes burns fat.
How many reps of cardio activity do you suggest to make my abdomen hard? Also how many minutes of cardio do you recommend. I have these measurements:
Eaist: 92.9 cm Hip: 103.5 cm Weight: 79.5 kg Height: 1.77 m