The couple use a technique known as high-intensity resistance training (HIRT) to pack a lot of core-strengthening exercises into just 15 minutes. The aim is to train hard for 40 seconds, take a ...

After answering three more questions, including talking about the "unbelievable atmosphere" and the "roars" he heard for McIlroy, who was in the group behind him, Lowry cut the interview short.

Using moderate to heavy weights — three or four sets of 10 to 15 reps with weights that challenge you — helps increase your muscle mass ... and they kept it off. This simple tip works in ...