Planks are one of the most effective exercises because they fire up so many muscles at once, especially the core and upper body. You can make them even harder — you know you want to! — by adding a pair of dumbbells. Grab a pair of three- to 10-pounders and throw these moves into your next routine. Since plank position can be tough on the wrists, alternate these plank variations with moves that give your hands a break, such as squats or lunges.
Related: 2-Week Plank Challenge
Twisting in a plank position fires up the core and works those love handles.
Work your arms and abs while improving your posture with this simple move.
Related: Printable 20-Minute Plank Workout For the Flat Abs You've Always Wanted
This plank row variation adds a twist.
Another move that tones your arms, butt, and core is this triceps kickback variation.
Side planks tone the muffin top, and adding the reverse fly into the mix not only challenges the abs a bit more but also tones the back of the shoulder. Squeeze your inner thighs together for added stability.
Work your arms and abs together with this plank variation.