The Best Exercise in Water to Tone the Stomach Area

Surface of an outdoor olympic swimming pool
The pool offers opportunities to burn serious calories. (Image: EvrenKalinbacak/iStock/Getty Images)

If your pool time consists of lounging in a chair with your favorite book and occasionally dipping your toes in to refresh, you're missing out on a serious workout opportunity. Water offers 12 times the resistance of air, so every action you take is that much harder and more effective. This is true for any exercise, including those that tackle your stomach region.

You might think the best way to tone your stomach in the water is some aqua variation of a crunch or hanging leg raise. While these moves do work the muscles of your abs, they don't directly work off any fat that hides definition in the stomach area.

Treading water, however, burns 400 to 500 calories per hour, and when you burn calories to create an energy deficit, it helps get rid of extra fat on your body to reveal a svelte tummy. It also requires incredible activation of your abdominals and the rest of your core to keep you upright and breathing. Your abs provide the powerhouse from which your arms and legs work.

Treading Water 101

Treading water involves moving your arms and legs to keep yourself upright in deep water. For a quality workout, get into water where you can't easily touch the bottom. If you aren't comfortable swimming, make sure the pool edge or a life raft is nearby to support you when you fatigue.

Man treading water in swimming pool wearing goggles.
Treading water is a no-impact way to burn calories. (Image: RonetteMJohns/iStock/Getty Images)

Practice two skills required for treading water:

Scull Your Arms: Practice this in shallow water in which you can stand until you're comfortable taking it to the deep end. You'll move your arms around right under the surface of the water with stiff wrists and sweeping hands. Bring your hands toward each other and then away from one another in a rapid fashion.

Flutter Kick: While in water deep enough that your feet can't touch, hang your legs toward the bottom. Scissor kick your feet front to back rapidly to help keep you afloat. Point your toes and keep your legs straight as you kick. Hold onto the pool edge or a floating device to keep your upper body afloat as you practice.

Tip

Either of these skills can be practiced while straddling a pool noodle until you feel comfortable and strong enough to do them on their own.

woman is swimming on aqua noodle
A pool noodle offer buoyancy. (Image: fotovampir/iStock/Getty Images)

Make Treading Water a Workout

Treading water for a straight 20, 30 or 60 minutes is pretty intense and draining. Instead, make treading water an interval workout by going all out for 30 to 60 seconds and then floating on your back, holding onto the pool wall or sitting on a noodle for an equal amount of time. Do 10 to 15 sets of these on/off intervals to get a complete workout.

You'll also burn more fat working with intervals than you will with steady-state activity, notes a paper published in a 2011 issue of the Journal of Obesity. Burning more fat means you'll reveal the tone in your abs more quickly.

Tip

Warm up before going into a tough water treading workout. Swim a few laps at a gentle pace. Alternatively, walk or march in the shallow end for 3 to 5 minutes.

Finish with Water-Specific Ab Exercises

Use a kickboard to maximize the resistance provided by the water. These moves use your abs to do what they're supposed to -- stabilize you!

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