No sit-ups — just this four-move standing ab workout to build a stronger core


Core workouts can often feel like a slog, especially when the workout involves busting out endless sit-ups or crunches, which can quickly become repetitive and boring. However, this workout from Oner Active Athlete, Hayley Madigan, is set to shake up your usual routine. It consists of four exercises, all performed standing—so there’s not a single sit-up in sight—and will only take you 15 minutes. Sound good? We think so! Just grab a single weight (either a kettlebell or a dumbbell) and get ready to fire up those core muscles.
We say they can be a slog, but core workouts are 100% necessary, not just for boosting your performance in the gym, but also for making everyday activities easier. Our core—which encompasses the muscles in the lower back, pelvic floor, hips and abdomen—helps stabilise and protect our spine. They stronger they are, the better our posture, balance and general movement will be. Plus, it can help reduce the likelihood of injuries too.
A post shared by Hayley Madigan (@hayleymadiganfitness)
A photo posted by on
For this workout, begin with the first exercise, resting for 45-60 seconds between each set and then 60-90 seconds before moving on to the next exercise. “Remember when it comes to strengthening your core, slow and control and movement down and don’t go too heavy!” Hayley writes on her post. “Start off with a light weight and teach your body the movement.” For reference, Hayley says she doesn’t usually go heavier than using a 8kg kettlebell/dumbbell for her core workouts. Here’s what you’ll be doing:
- Kettlebell Frontal Raises – 2-3 sets x 8-12 reps
- Standing Side Bends – 2-3 sets x 8-12 reps
- Kettlebell Pass Around the Body – 2-3 sets x 6-8 reps (per direction)
- Overhead Hold with Knee Raise - 2-3 sets x 5 reps (per leg then swap arms and repeat)
Looking for more standing exercises that you can swap out your sit-ups for? Check out these seven standing exercises from Ultimate Performance Certified Personal Trainer, Steve Chambers, which are guaranteed to build a solid midsection and improve your posture. If, however, you’re after another workout to line up later in the week, give this 15 minute workout a try. There’s some similar exercises to Hayley’s in there, but also some new ones to mix things up a little.
Sign up to the T3 newsletter for smarter living straight to your inbox
Get all the latest news, reviews, deals and buying guides on gorgeous tech, home and active products from the T3 experts

Bryony’s T3’s official ‘gym-bunny’ and Active Staff Writer, covering all things fitness. She is a certified personal trainer and also a part-time fitness instructor. In her spare time, you will find her in her natural habitat - the gym - where her style of training is a hybrid of bodybuilding and powerlifting. Bryony loves writing about accessible workouts, nutrition and testing innovative fitness products that help you reach your fitness goals and take your training to the next level.
You must confirm your public display name before commenting
Please logout and then login again, you will then be prompted to enter your display name.
-
You only need a kettlebell and these four exercises to build a stronger, resilient body
Push, pull, hinge and squat to build full-body, functional strength
-
Skip the crunches – this five-move upright ab workout builds a strong, stable core
You can build a stronger core without hitting the floor
-
This 30-minute strength circuit adds upper body muscle where you really want it
This quick-fire workout can help build your chest, arms, back and shoulders
-
Arnold Schwarzenegger’s quick hit dumbbell workout delivers serious strength gains
Start your week the right way – with this simple 30-minute, four-move strength workout
-
No plank needed – build a stable core with this 8-minute upright ab workout
You can build a strong core without getting on the ground
-
Boost lower body muscle and burn fat with this speedy 20 minute dumbbell workout
Leg day doesn’t have to be skipped, especially with quick, effective sessions like this
-
Sculpt full-body strength and muscle with two dumbbells and these seven exercises
No gym required
-
Time crunched? This five-move dumbbell circuit builds muscle and burns fat
No need to skip your workout, this 30-minute circuit has your entire body covered