

If you’re trying to build a six-pack, no doubt you’ve probably been including some sit-ups in your training. Sit-ups are, after all, one of the oldest exercises in the book when it comes to working our front ab muscles— the rectus abdominis— but, equally, they’re also one of the most hated. This is often due to the pressure they place on the lower back, not to mention, they’re just damn tough.
Recently, I was keen to reintroduce some ab-specific exercises back into my training because, as much as I enjoy prioritising core workouts, these won’t grow my abs. But, instead of opting for regular sit-ups, I decided to reach for the ab mat, and I wish I’d started using it sooner.
An ab mat is probably one of the simplest pieces of gym kit you’ll come across— essentially it’s a piece of board that’s covered in foam with a sloped arch on which you perform sit-ups— but it’s also one of the most effective.
This is what an ab mat looks like
“Using an ab mat for sit-ups offers a better range of motion, targeting your abs more effectively,” says Aimee Cringle, Built For Athletes ambassador and Fittest Woman in the UK. This is because it allows you to fully lengthen your abdominal muscles for a full contraction (meaning better results), which you can’t do lying on a flat surface, like the floor, when performing traditional sit-ups.
But the ab mat doesn’t just make the sit-up more effective, it’s also far more comfortable for your lower back too. “This is because it supports the natural curve of your spine, reducing lower back strain,” explains Aimee. “It also prevents the tailbone from pressing into the floor, which can be a common issue with traditional sit-ups. This enhanced support allows for a smoother, more controlled movement, making the exercise more comfortable.”
Using an ab mat is now a staple in my training regime
I’ve been doing three rounds of 15 ab mat sit-ups at the start of my workouts and I can’t believe the difference it’s made to my mid-section. Not only do my abs feel so much firmer, but my lower back is no longer sore afterwards. After completing my reps, I can just get up and crack on with the rest of my workout, whereas before I’d be peeling myself up off the floor and my lower back would feel as stiff as a wooden board.
My hips aren't left feeling sore and achy either. This is because of the way you position your feet. When using an ab mat, you place your feet together and your knees fall outward to the sides, a bit like doing a butterfly stretch. This takes your hip flexors out of the equation, which often become far too dominant in sit-ups, and instead places all the attention on the muscles you actually want to work, your abs.
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
The next time you see this odd-looking humped mat gathering dust in the corner of your gym, give it a go. Your opinion on sit-ups may be changed once and for all.
How to use an ab mat
Sit-ups have a bit of a dodgy reputation which may leave you questioning whether ab mat sit-ups are any safer, but Aimee insists they are. "The ab mat is safe for your spine when used correctly. It supports the natural curve of your lumbar spine, reducing strain on the lower back."
However, as with any exercise, proper form is essential to avoid injury. Here's how you perform the ab mat sit-up.
- Place the ab mat under your lower back with the higher arch facing your butt
- Bring your feet in together so that they’re touching and your knees drop out towards the sides
- Lay yourself backward over the ab mat and lengthen your arms above your head
- Perform a sit-up and touch your hands either side of your toes

Bryony’s T3’s official ‘gym-bunny’ and Active Staff Writer, covering all things fitness. She recently completed her Level 3 PT qualification with the PFCA to bring a deeper understanding of training techniques, fitness trends, and wellness advice to her writing. 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.
-
Build unshakeable core strength with a kettlebell and these three exercises
Add this to the end of your workout to fire up your midsection muscles
By Bryony Firth-Bernard Published
-
The next big tech battlefield is AR Glasses – and Apple is ready to fight
Tim Cook is said to "care about nothing else"
By Sam Cross Published
-
3 overrated shoulder exercises, according to a fitness expert (and what to do instead)
Sculpt 3D shoulders whilst minimising injury with these three alternative exercises
By Bryony Firth-Bernard Published
-
The best biceps exercise, according to science
Have you been training your biceps wrong this whole time?
By Lucy Miller Published
-
Finally! Represent 247 launches its first womenswear collection, taking you from street to gym in style
It's about time guys
By Bryony Firth-Bernard Published
-
3 chest exercises you’re probably not doing to supersize your pecs
A killer pec pump awaits
By Bryony Firth-Bernard Published
-
When’s the best time to take creatine?
The science-backed supplement is a must for building strength and muscle, but is there an optimal time to take it?
By Bryony Firth-Bernard Published
-
Three overrated core exercises and what you should do instead
A fitness expert says these exercises aren’t all they’re cracked up to be
By Bryony Firth-Bernard Published
-
I tried Olympic weightlifting for the first time – here are three things it's taught me
Being strong simply won't cut it
By Bryony Firth-Bernard Published
-
An exercise scientist ranks every ab exercise – and the worst one may surprise you
FYI it’s not crunches or sit-ups
By Bryony Firth-Bernard Published