New Delhi, April 28 -- Ever wondered what separates a professional athlete from the rest of us? If you are thinking it's their skills and gifts, it's something much more basic: it is discipline and dedication to train twice a day. That's what makes them physically fit to perform at a high level over long periods of time without losing their edge. A majority of us don't even manage or try to carve out the time to exercise, train or play a sport even once a day. However, there is a growing tribe of regular people -especially runners and those who play some sport recreationally-making time for physical activities two times a day multiple times a week.

This two-sessions-a-day structure, known as 'training periodisation', helps athletes separ...