day 4
Set 1
4 rounds
20
s
Air Bike
rest: 30 s
15
Hiệu lực
Knee hugs
rest: 30 s
30
s
Side plank
rest: 10 s
30
s
Side plank
rest: 30 s
15
s
V-hold
rest: 35 s
15
Hiệu lực
Crunches
rest: 30 s, after the set 60 s

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