Tabata

8 rounds of
    in 0:20 max
        burpees
    in 0:10 rest

score @reps (the higher the better)

The athlete will do a maximum reps of burpees during 20 seconds then rest for 10 seconds. Repeat that routine 8 times.

4 rounds of
    in 0:20 hollow hold
    in 0:10 rest
    in 0:20 arch hold
    in 0:10 rest

The athlete will maintain the hollow hold during 20 seconds then take 10 seconds of rest. Then, 20 seconds of arch hold then take 10 seconds of rest. Repeat that routine 4 times.