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I wanted to get the most out of my weights, specifically dumbbells, but also wanted to ensure I was being safe and efficient – so I went to the Barry's Bootcamp professionals. I figured I was in good hands here as Barry's Bootcamp has been going since 1998 and attracts some of the best personal trainers around.

While some of the best fitness apps already provide guided workouts, and some of the best smartwatches allow for follow-along workouts from your wrist, it's helpful to be able to pick and choose moves to try in the gym or at home, at your own pace.

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Jason Leggett, master trainer, Barry’s UK told TechRadar a powerful workout that you should be able to take advantage of with nothing more than your dumbbells.

1. Dumbbell sit-up

• Lie flat on a bench or the floor, with your feet flat on the floor, and hold a dumbbell above your chest.
• Crunch, lift your chest to your knees like a normal sit-up, while pressing the dumbbell to the sky.
• Control the fall back down. Breathe out on way up and inhale on the way down.

2. Dumbbell Russian twist

Russian Twists for Internal & External Obliques #fitness #coreworkout #abexercises #russiantwist - YouTube

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• Sit on the floor with your legs raised, knees bent.
• Pivot on your bum and find balance. Then hold the dumbbell at your right hip and rotate to the left, controlling the twist.

3. Weighted jack-knife

• Lie on a bench or the floor with a dumbbell in your hands. Place the dumbbell over and behind your head
• Make a v-shape with your body: raise your legs straight up to the sky, then bring the dumbbell to meet your toes.
• Go slow, controlling the whole movement.

4. Dumbbell v-sit

• Sit on the floor Keep your knees up, like the Russian twist, balancing on your bum while holding a dumbbell close to your chest.
• Hold that pose for 2-5 seconds, then slowly relax your arms and legs.