Seven minutes of fun

Since M was back in town (briefly) from her international travels, we got up early and went to the East River Park. Wanted to try G's recent suggestion of a simple bodyweight high-intensity circuit (mentioned in the Times, original article in an ACSM journal).

30 secs each of:
jumping jacks
wall sit
push-up
crunch
step-up
squat
triceps dip
plank
hi-knee running
lunge
push-up + rotate
side plank

4x running intervals (30/90 s sprint/walk)

Not a bad bodyweight routine, though not novel - similar circuits have been in vogue for a while now (e.g. P90X). Took just enough time between exercises to transition, probably ~10 s. Nice way to keep intensity up (HR in the 160s afterwards).