WOD: Back to basics Workout

EMOM25:
a) 9-15 cal air bike
b) 8-12 sit up + 8-12 kbs (24/16)
c) 9-15 cal bike / ski erg
d) 8-12 + 8-12 russian twist + 8-12 db snatch (22,5 / 15)
e) rest