This moderate level ab workout is great for improving functional strength. It includes work in both trunk flexion and trunk extension.

Trunk flexion occurs with sitting, bending, and twisting type motions. You strengthen for these activities with exercises like crunches and leg drops.

Trunk extension occurs primarily with standing, walking, and running activities, but can be simulated on the floor with bridging exercises that require abdominal and core muscle control.

Whatever you’re doing throughout the day – work, sports, or just plain living – you need abdominal strengthening in both flexion and extension for optimal performance.

Stay fit!