Forget sit-ups — you only need 15 minutes and 8 moves to build a stronger core and improve your posture
Hate sit-ups? Try this 15 minute ab blasting routine instead
Sit-ups are a staple in many of the best core workouts, but if you’re not a fan, don’t worry — there are plenty of other effective core-building exercises out there. We've found a short, no-equipment workout that demonstrates just how effective these alternative moves can be.
Thanks to trainer James Stirling also known as the London Fitness Guy, he's formed an 8-move, no-equipment routine designed to challenge, strengthen and add definition to the muscles in your core.
The idea is to spend 40 seconds on each exercise and take no breaks which not only adds to the time efficiency of this workout but will also keep the heart rate up increasing the workout's intensity and calorie burn and helping build muscular endurance.
Watch James Stirling's 8-Move Core Workout
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- Plank single arm raise x 40s
- Jack Knife x 40s
- Hollow Rocks x 40s
- Side Plank x 40s each side
- Hip Raise x 40s
- Shoulder Taps x 40s
- 2 Point Plank x 40s
- Wipers x 40s
Working through the various exercises in Stirling's routine like Planks, Jack Knives, and Side Planks, you will be targeting a wide range of core muscles, including the rectus abdominis, obliques and transverse abdominis.
This rich variety of core moves will help you develop a well-balanced and stronger core, improving your posture, reducing the risk of back pain, and enhancing definition across your entire midsection, not just your abs
To achieve the best results, focus on maintaining good form with each exercise. Watching Stirling's demonstrations will be helpful, as will consistently engaging your core throughout the routine. Engaging your core feels like bracing your abdominal muscles as if they're about to be hit. Fortunately, the only thing you'll be hit with is a satisfying burn from a solid workout.
The intensity of this workout will also work toward building core endurance. Exercises like the Hollow Rocks and 2 Point Planks require consistent muscle contraction and control, training your core muscles to perform efficiently over longer periods.
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Core endurance is crucial for everyday activities like bending, lifting, twisting, and standing for extended periods, enabling you to perform these tasks more efficiently and with less fatigue. It also enhances performance in various exercises, such as running, swimming, and sports, by providing a stable foundation for movement.
Lastly, Stirling's focus on bodyweight exercises makes the core strengthening routine extremely accessible and convenient. With just a good yoga mat underneath you during the workout to enhance comfort, no other special equipment is needed, meaning you can perform the routine anywhere — whether at home, in a park, or while traveling. Additionally, the use of bodyweight exercises allows for easy modifications to suit your fitness level.
More from Tom's Guide
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- Pilates instructor shares a 20-minute full-body Pilates workout to sculpt muscle and boost metabolism
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.