Do it: Lay face up on the floor with arms straight above your shoulders. To start, bring your knees directly over your hips and bend at the knee so that your calf forms a 90-degree angle with your thigh. Next, simultaneously lower your left arm above your head while straightening your right leg and sending it towards the floor. Pause, return to the starting position, and then repeat on the opposite side. Do 14 alternating reps to complete one set.
Leg day, arms day, chest-and-shoulders day. You already break up your regular workouts by muscle group; steal a page out of Alicia Vikander’s ab-shredding book and do the same to your core. To get ripped for Tomb Raider, Vikander broke her core workouts into three days: isometric (endurance moves, like planks); strength (sit-ups, hanging leg raises); and oblique-specific (told you so).
Try starting your day off eating heavier, and ending on a light dinner. Instead of waking up and running out of the door with a banana, eating a small lunch, and then eating a hefty dinner, try making your breakfast your heaviest meal and your dinner the lightest. For carb intake at dinner time, try to ingest the wet types of carbs that are in high-water, medium-fiber foods. 

Refresh your abs workout with these 25 core exercises. They'll challenge your abs from all angles, making you stronger in everything you do and giving you a body you'll be proud to show off shirtless. And for a complete fitness program that will not only build your abs muscles, but also melt the fat that covers them, try Anarchy Abs from Men's Health. You’ll get five 30-minute calorie-torching workouts that employ a unique blend of metabolic training, traditional strength training, and gymnastics fundamentals to strip away fat from head to toe.

To do it: Lie down with a small ball (a small pillow will also work if you don’t have a ball) under your heels, both arms extended over your head, palms facing towards each other. Inhale to prepare as you lift your head, neck, and shoulders off the floor and then exhale as you continue to roll up by drawing in your abdominals, reaching up and over towards the feet. Keep your abdominals contracted, with your spine rounded in a ‘C’ curve, and then inhale to prepare and exhale as you roll down through each vertebra in a controlled movement, keeping your heels pressed evenly into the ball the entire way up and down. Do 15 reps as controlled and precise as you can.
To do it: Lie on your back with your arms out to each side in a ‘T’ shape, palms facing down. Position a stability ball between your feet and extend both legs up towards the ceiling, just above your hips, knees slightly bent. Gently squeeze into the ball, draw your abs in tight, and press your ribcage into the floor as you carefully move the ball to the right, lowering both legs towards the floor (only go as far toward floor as you can without dropping to the side). Press the ball back up to the ceiling and repeat to the left, alternating sides for one minute.
How to: Lie on your left side with your legs straight and your right leg stacked on your left. Position yourself so your weight is resting on your left forearm and the outside edge of your left foot. Your elbow should be directly beneath your shoulder, and your upper arm should be perpendicular to the floor. Align your body so it forms a straight line from your neck to your ankles, and place your right hand on your hip. Lower your hips toward the ground a couple inches, then come back up to start. That’s one rep. Do 15 reps on each side.
But instead of just trying to perform as many reps as possible, slow down and really focus on the quality of the movement—especially the eccentric, or downward motion, of the exercise, he says. “The eccentric contraction is the most important phase when sculpting any muscle.” Plus, focusing on quality over quantity will help protect your back (some experts say crunches can be potentially troublesome for guys with back issues.)
×