Long jogs a few times each week or multiple mini sessions every day of 10 or 15 minutes are equally effective at achieving the benefits of cardiovascular workouts, provided you perform at your target heart rate.
3rd over: England 3-0 (Trescothick 1*, Strauss 2*) No-win mini-session this for England.
Trott takes three runs off that pad to complete a fascinating mini-session.
Who can resist a high school education "mini-session" called "Who You Do Is Up To You"?
Ah, no - he's now in the practice room, knocking in the balls from which he's been separated for most of the last mini-session.
It was an ostensibly meaningless mini-session at the end of the match, but it suggested England's idea that South Africa were vulnerable to spin might need revising.
A four-frame whitewash of the opening mini-session was duly completed and O'Sullivan strode from the arena with a hip-swivelling momentum.
7.01am GMT 8th over: Australia 30-0 (Rogers 18, Warner 12) Cook, quite rightly, is shuffling his bowling pack in this mini-session.
It does seem that most wickets are coming with fuller balls, caught behind the stumps, and as such, this mini-session has been mainly wasted.
There had been time enough in that first mini-session for Jimmy Anderson to take the single wicket, that of Kaushal Silva, with such a brilliant piece of cerebral swing bowling that it would have been worth the price of admission on its own.
And, though it would be far too simplistic to ascribe the collapse to West Indies' change of leadership - England were, after all, playing their strokes safe in the knowledge that they had a 230-run first-innings cushion - the mini-session will be used as extra ammunition for those sniping at Lara at every opportunity.
