The bicycle crunch is fairly easy to do, but many people get it wrong. To do it properly, lay flat on the floor and keep your lower back pressed to the ground. Rest your hands behind your head without pulling on your neck. Bring your knees up to about a 45-degree angle and slowly go through a bicycle pedal motion as pictured. First, touch your left elbow to your right knee, then your right elbow to your left knee. Perform the exercise in a slow, controlled motion. Repeat 10-25 repetitions on each side.
To do it: Start with feet in a wide stance, knees bent, arms up on guard. Keeping your lower body still, quickly lean your upper body to the right, then come back through the center and lean to the left. Repeat lean back to the right. Next, lower your upper body, from the right around to the left side, making a half circle with your torso. Return to start position. That’s one rep. (Tip: it helps to keep a steady rhythm with this move, think—or say aloud—1, 2, 3, weave to help you keep your tempo). Repeat 10 times total, alternating starting on the right and left sides.
World-renowned spine specialist Stuart McGill recently referred to the Swiss-Ball Stir-the-Pot as the best core exercise you can do. Try it once, and you’ll start to see why: It’s hard. Make that really hard. That’s because it combines two elements that leave your abs screaming: instability and dynamic movement. This combo allows you to work your rectus abdominis (a.k.a. six-pack muscles), obliques, and all of the muscles that help stabilize your spine from just about every direction. The upshot: an ab workout like you’ve never done.
Do it: Think of this as an upside-down dead bug. Start in a tabletop position, with your shoulders over wrists and hips over knees. Engage your core while simultaneously lifting your right arm and left leg. Your foot should be flexed as you kick back, and your palm should face in towards your body. Pause for one second when your arm and leg are at the same height as your torso, and then bring your elbow and knee to touch underneath the body. Repeat on the other side for one rep, and do five reps for one set.
To do it: Lie on your back with your knees bent, feet flat on the ground. Bring both arms overhead and hold onto the bottom of couch or a heavy medicine ball (as shown). Cross your right ankle on top of your left knee. Exhale and lift your legs in (in the same cross-legged position) as close to your chest as possible, lifting your hips and lower back off the floor. Inhale and slowly return to the starting position. That’s one rep. Try for up to 15 reps with the right leg, then repeat on the left.
Why it made the list: This increasingly popular movement trains your abs to do what they're supposed to do: stabilize your skeleton. Pallof presses serve as an anti-rotation movement, meaning the body is actively fighting rotation throughout the motion. By utilizing exercises like this, you can increase core stability in various planes of movement and reduce likelihood of injury.
Follow a program. Alcantara is all about consistency — one reason why she recommends choosing a structured fitness plan rather than shooting in the dark and praying you surface with abs. "Follow it to 100 percent, do it back-to-back," she says. Many fitfluencers offer their own programs, but you'll want one from a certified fitness trainer like Alcantara, who offers an eight-week guide.
Carb cycling — I followed a form of carb cycling where I would have low carbs, moderate fat and high protein on Cardio Days (Tue and Thu) and moderate carbs, low fat, high protein on Weight Training Days (Mon, Wed, Fri, Sat). I’ll explain why. On cardio days, you want your body to utilise as much energy as it can in the form of fat to burn without providing it extra energy from carbs. On weight training days, you need to have enough energy to push hard at the gym, replenish your muscles and providing them the food they need to grow.
As the kettlebell shifts from hand to hand in front of your body, your core has to stabilize to fight against the movement of your arms, and your biceps, shoulders, and back muscles need to work together to control the pace at which you are catching and releasing the kettlebell. Your lower-body will get a workout, too. You can perform this abs exercise with a bent waist to hammer your hamstrings and glutes or try it in a squat position to target your quadriceps. No matter which way you try it, you'll see bigger strength gains and a smaller waistline in less time.