Short on time? Build core muscle and tone your stomach with this no-equipment ab workout

a woman wearing a sports bra and leggings doing bicycle crunches on a yoga mat
(Image credit: Getty Images)

Finding time to work out when you lead a busy life can be tricky, but core workouts don’t need to be long to deliver results. Strengthening your abs can enhance not only your performance in other activities like running or lifting but also your posture, confidence, and overall fitness. What better way to train your core this week than to give this six-move ab routine a go?

One thing you might need, though, is one of the best yoga mats to cushion your back and joints during this floor-based routine. If you're wondering who made this workout for your core, it's all thanks to renowned online trainer Kayla Itsines. You'll find Itsines' demonstrations of each exercise below, and we encourage everyone to take note, as good form is key to getting better results. 

The aim is to perform 12 reps per exercise, and for the ultimate burn at the end, you will complete 20 reps of the last move before repeating the full circuit again, three times over. 

Watch Kayla Itsines' 6-move core workout

While adding equipment like one of the best kettlebells or dumbbells can certainly intensify an ab workout, they aren’t the only key to building core strength and toning your stomach. Bodyweight exercises, when done with proper form and under the right conditions, can be just as effective. So if you don't have a gym membership or own your own workout equipment at home, you can still train your core with a workout like this one from Itsines.

When it comes to exercising the core, it's important to recognize the difference between training the abs and the core. Ab exercises focus on the muscles at the front of your torso, core exercises strengthen the entire midsection, including your back and sides. Strengthening both of these areas can enhance muscles definition, improve balance and prevent injury. 

Although building a chiseled set of abs is highly sought after by many, building a stronger core doesn’t just help you achieve defined abs. It’s also essential for maintaining good posture. With stronger support around your spine, you can reduce the risk of back pain and improve your overall movement. Whether you're sitting at a desk all day or lifting heavy groceries out the car, a strong core can hold your body better and help you move more efficiently.

As for frequency, training your core two to three times a week is a good place to start, without overworking your muscles. Fitting core exercises into a well-rounded fitness routine can be as simple as adding them to the end of a cardio or strength session.

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Jessica Downey
Senior Fitness Writer

Jessica has been a fitness writer at Tom’s Guide since 2023, bringing three years of experience writing about health, fitness, and the great outdoors. Her passion for exercise began during her childhood, where she spent weekends hiking and competing in local athletics club events. After earning a master’s degree in journalism from Cardiff University, Jessica found the perfect way to combine her love of storytelling and fitness into a career.

Jessica is passionate about testing fitness gear and tech, using her reviews to help readers make informed buying decisions. She ran her first marathon in April 2024, finishing it in 3 hours and 48 minutes. Through her training, she’s developed a deep understanding of what it takes to grow as a runner, from effective workouts and recovery techniques to selecting the right gear for every challenge.

When she’s not at her desk, Jessica enjoys spending time in the kitchen crafting new recipes, braving cold water swims and hiking.

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