Holding a plank for more than *10 seconds* could be pointless, one expert claims

According to one spine expert, holding a plank for more than 10 seconds is pointless. Instead, he suggests doing interval training that includes multiple reps of 10-second plank holds.

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Photo: Stocksy/T REX Flower

16 Upper Glutes Exercises Personal Trainers Swear By for a Stronger Butt

Why your upper glutes deserve more love, and the best exercises to strengthen them.

woman doing an upper glutes exercise with an exercise band.