Do muscles recover faster in the AM or PM?@final sprint

A study from France shows that it takes longer to recover from hard exercise in the evening than in the morning (Int J Sports Med 27, 2006).

Cyclists performed ten six-second bouts of all out effort, with 30-second rest periods while the researchers measured peak power output, total mechanical work, peak pedaling rate, and peak efficient torque. The same group of cyclists performed these workouts in the morning on one day, and in the evening on another day. They found that the short-term recovery patterns were slower in the evening than in the morning.