Descending Intervals

60 seconds, 45 seconds, 30 seconds, 15 seconds, with same time between as in the interval, 2-3 minutes between sets

had time and will not be doing my late day circuit class; had to fast from what ended up being 9pm last night until noon today for a doctors appointment; had a late breakfast and then did these a few hours later; 501/503/572/658, 520/523/586/623, 524/521/601/662, 491/519/587/629, 515/484/570/645...NP of 330 for 56 minutes...felt pretty good...cold and grey day