🌓 28 days Plank

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Day 1: 20

Day 2: 20

Day 3: 30

Day 4: 30

Day 5: 40

Day 6: Rest Day

Day 7: 45

Day 8: 45

Day 9: 60

Day 10: 60

Day 11: 60

Day 12: 90

Day 13: Rest Day

Day 14: 90

Day 15: 90

Day 16: 120

Day 17: 120

Day 18: 150

Day 19: Rest Day

Day 20: 150

Day 21: 150

Day 22: 180

Day 23: 180

Day 24: 210

Day 25: Rest Day

Day 26: 210

Day 27: 220

Day 28: 240