This 21-Day Abs Challenge will strengthen your entire core. Thanks to a combo of strengthening exercises using bodyweight, dumbbells to a BOSU (optional) this 21-day Abs Challenge will help you build your most powerful core yet.

Now, remember we can't spot reduce body fat (ie. this challenge wi...

Day 1 of the 21-Day Ab Challenge. 8 exercises, no repeat - a great way to kick off our challenge and get those abs prepped for the next 3 weeks!

Tools: mat

Day 2 of the 21-Day Ab Challenge. Hit those deep core muscles so you don't injure yourself when you weight train!

Tools: mat

Day 3 of the 21-Day Ab Challenge. Train your obliques with 2 of the best exercises. One trains them as they move (twisting) and the second as a stabilizer.

Tools: mat

Day 4 of the 21-Day Ab Challenge. Alternating between a low back exercise and an ab exercise you'll hit both the back and front of the body with this short workout.

Tools: mat

Day 5 of the 21-Day Ab Challenge. No crunches, or spinal flexion in this ab workout - making it the perfect osteoporosis-friendly workout too.

Tools: mat

Day 6 of the 21-Day Ab Challenge. Focussing on engaging your abs from the lower part you'll feel the burn in this short ab workout.

Tools: mat

Day 7 of the 21-Day Ab Challenge. Isolate your abs with crunches, crunches and more crunches.

Tools: mat

Day 8 of the 21-Day Ab Challenge. You'll feel this one! Using a traditional ladder, with reps vs time, you'll ladder up the intensity as we go.

Tools: mat

Day 9 of the 21-Day Ab Challenge. This is the perfect balance of ab crunching and spinal extending. Your abs and low back will love you!

Tools: mat

Day 10 of the 21-Day Ab Challenge. Fire up your waist muscles with this oblique focussed workout.

Tools: mat

Day 11 of the 21-Day Ab Challenge. Absolutely no crunches in this workout, making it perfect for anyone with osteoporosis or spinal stenosis.

Tools: mat

Day 12 of the 21-Day Ab Challenge. Using a dumbbell we are going to fire up those abs with a series of plank and crunching exercises.

Tools: 1 moderate dumbbell (optional), mat

Day 13 of the 21-Day Ab Challenge. Stability ball optional you'll be challenging your abs in this short, yet sweet, ab workout.

Tools: mat, stability ball (optional)

Day 14 of the 21-Day Ab Challenge. This no plank ab workout will fire up those abs, without placing any pressure on the wrists and shoulders.

The perfect to-do anytime ab workout, as well as a great one to tack on after a cardio or strength workout for anyone who hates planks and is looking for...

Day 15 of the 21-Day Ab Challenge. Spend some time with your core in this short workout that’s perfect as a warm-up or finisher. This class features movements that will bring heat to your abs such as High to Low Plank and an old-school favourite, the Six-Inch Leg Raise.

Tools: mat

Day 16 of the 21-Day Ab Challenge. Using the wall you are going to learn a new way to activate your ab muscles with two ol' time favourites - dead bug & legs to the ground.

Tools: mat, access to the wall

Day 17 of the 21-Day Ab Challenge. While you can't isolate upper and lower abs (because technically there are no lower ab muscles) you can initiate a more ab burn from the pelvic area and the upper ab region.

In this workout, we will alternate between the two areas.

Tools: mat

Day 18 of the 21-Day Ab Challenge. Using an EMOM workout (every minute on the minute) you'll hit a specific number of reps for one exercise, each minute. The faster you get your reps done, the longer break you get before the next minute (and exercise) kicks off.

Tools: mat

Day 19 of the 21-Day Ab Challenge. Using a dumbbell and your body weight, you'll hit your abs while never having to get down on the ground.

Tools: 1 light-moderate dumbbell

Day 20 of the 21-Day Ab Challenge. Ignite your deep core muscles with a twist on some ol' favourites, like the dead bug, side plank and reverse curl.

Tools: mat

Day 21 of the 21-Day Ab Challenge. Fire up 🔥 your abs with our final workout in the series.

Sorry, this workout is not osteoporosis-friendly.

Tools: BOSU or stability ball (optional)

2 x 50sec
Crunch (Alt: on floor)
Plank (Alt: on floor)
Oblique crossover (Alt: 1-side bicycle)
Oblique cro...