DIFFICULTY: 3 OUT OF 5
The side plank is one of the most effective exercises for building a stronger core and shrinking your waistline. Unfortunately the rewarding exercise tends to get... very... very boring after a few repetitions. That's why variations of it exist.
Keep reading to see how fitness expert and H&M Sport ambassador Amanda Bisk varies the side plank. The first variation stimulates your core, shoulders and overall coordination. The other one works the same muscles, but stretches your inner thighs, hamstrings and improves your overall stability too.