
Originally Posted by
Mr.Rose
No I believe it does not hold for heavy resistance training. People favor AM cardio because your body is already depleted in its glycogen stores, forcing it to favor fat for energy, or so the theory states.
Without adequate glycogen for heavy resistance training your muscles will not have fuel to execute the required movements. I would recommend a high quality meal before weights, and again after.
I believe a protein bar on it's own may not be sufficient energy for heavy lifts, considering your more than likely going to burn 400-800 calories during the lifts.