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30 day abs challenge

30 Day Abs Challenge – Day 15

In and out 30 day abs challenge day 15 healthista main

Welcome to day 15 of the NEW Healthista 30 day Abs challenge with founder of hot gym Gymclass, Helle Hammonds

The Healthista challenge has returned and so has Helle Hammonds from GYMCLASS, with 30 days of five-minute abdominal workouts. Helle has created a different workout for each day consisting of two strength moves and one fat burner, these are performed back to back and all movements last 30 seconds. Each day provides beginner and advanced options to provide a challenge for everyone.




  • In and out – Sit down with your legs straight out in front of you, slightly raised, and lie back with your arms behind your head and you back raised off of the floor. Bring your entire body in by bring your chest and knees together and then release to the start position. Repeat for 30 seconds.


  • Side to side straight leg – Sit on the floor with your hands on the floor next to you and your legs above the floor and knees bent. Face one side and stretch your legs out. Bring your legs back in and shift to the opposite side, and repeat the move. Repeat for 30 seconds.


  • Criss cross tuck jump – Stand up straight, jump and land with one leg crossed in front of the other, repeat this move but swap your legs to the other leg is in front this time. When you have finished this move, do a tuck jump, by jumping and bringing your knees up.

Repeat more two times.


Previous days of the Healthista abs challenge


More Healthista workouts with Helle Hammonds:

30 minute fat-burning workout for abs

30 minute fat burning workout for upper body

30 minute fat burning workout for lower body

Helle Hammonds GymClass Sweaty Thirty by Healthista bioHelle Hammonds, 38, founded London’s leading group fitness studio – GymClass in 2014. She wanted to create a gym that not only encouraged those intimidated by fitness to come in, but to also re-programme those who visited daily striving for that size six frame. Helle wanted to make it clear that exercising is about getting stronger, building leaner muscles, strengthening the core, interacting socially, and living a healthier and happier lifestyle. Helle spent a number of years working at renowned gyms across London, learning and gaining experience, before opening her first studio in Holland Park in 2014. Helle has personally designed the GymClass workout to deliver distinct results in building fitness faster, sculpting leaner muscles, melting stubborn fat and strengthening the core.

Read More:

5 minute warm up for an upper body workout

The 5-minute running warm-up to keep injuries at bay

10-minute yoga for climbers

HIIT challenge – legs and upper body


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