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Workout With Fitness YouTuber Rosanna Pierce | One Dumbbell Workout

Workout With Fitness YouTuber Rosanna Pierce | One Dumbbell Workout
Isaac Syred
Writer and expert4 years ago
View Isaac Syred's profile

If you're one of the 104,000 subscribers to Rosi Jay Pierce YouTube channel, you'll know she's an award-winning UK fitness & lifestyle vlogger and qualified personal trainer — sharing her knowledge to those who need it most.

Juggling work, vlogging, fitness, with being a mum, certainly sounds challenging, right? Sticking to a regular routine can be a struggle for anyone. And, for those with busy lifestyles, squeezing in weekly workouts can feel impossible — but it doesn't need to be.

If you find yourself short on time, this lower-body workout from Rosi Jay Pierce is the perfect way to keep on top of your fitness goals — no matter how busy you are.


Rosi’s Workout 

B-stance deadlift 

This is great for learning how to hinge at the hip without overloading your spine. 

How to: 

  1. Standing upright with your feet about hip-width apart, place one foot a half step forward.  
  2. If you placed your left foot forward hold the dumbbell in that hand. 
  3. Keeping your spine neutral (straight) hinge at the hips and lower the dumbbell till you reach halfway down your shin. 
  4. In a controlled manner pull upwards and keep the dumbbell close to your leg at all times. 
  5. When you are at the top of the lift squeeze your glutes. 

Sets and reps: 3 sets of 12 reps for each leg. 

Cossack Squat 

If you have issues with your mobility doing these can help loosen your legs up to get a deep squat. 

How to: 

  1. Start with your legs wider than shoulder-width and keep your toes facing forward. 
  2. Move your weight to your left leg, focus on bending at the knee and sitting back as far as you can. 
  3. Keep your right leg out to the side and rotate onto your heel — you should feel a stretch in your hamstring. 
  4. Pause for a second 
  5. Push up through your left heel as you would in a squat and repeat  

Sets and reps: 4 sets of 10 on each leg. 

Dumbbell Lunges 

The second-best compound move for the legs focusing on the quads and hamstrings. 

How to:  

  1. Stand upright, feet together, and take a big lunge forward with your right leg, lowering your hips toward the floor.  
  2. Bend both knees to 90-degree angles. The back knee should point toward but not touch the floor, and your front knee should be directly over the ankle.  
  3. Push back upwards and repeat for the other leg. 
  4. Keep the core tight and upper body stable and upright.  

Sets and reps: 4 sets of 10 reps on each leg. 


There’s no leg or lower body workout without a squat it’s a great compound movement and it’s great for working every leg muscle. 

How to: 

  1. Start with your feet shoulder-width apart.  
  2. Body upright looking forward and a tight core.  
  3. Heels planted, sit as deep as you can before pushing back to a standing start.  
  4. Take two seconds to release down, hold for two and power back up. 

Sets and reps: 4 sets of 20 reps 

Sumo Deadlift 

This lower body exercise incorporates both your lower back and legs so it’s the best of both worlds. 

How to: 

  1. Place your feet outside of should width and hold the dumbbell at the end with both hands 
  2. Lower the dumbbell in between your legs bending at the hips and knees till your legs are parallel to the floor. 
  3. Drive-up through your heels and squeeze your glutes at the top of the movement. 

Sets and reps: 4 sets of 10 reps 

Take Home Message 

Working out doesn’t always have to be barbells and all machine equipment possible sometimes just one dumbbell will do the trick. Rosi Jay has shown us that it can be easy too. This workout can be done in the home or the gym you just need the one dumbbell.  

It doesn’t even matter how busy you are because this workout will only take 30 minutes out of your day if you’re in that much of a rush. There are no excuses now. 

Isaac Syred
Writer and expert
View Isaac Syred's profile

Isaac is a brand communications apprentice with a passion for all things fitness. He has always had a passion for football, playing at a high youth level and enjoying 4 years of competitive kickboxing. Over recent years Isaac has dedicated himself to continually improving in the gym, enjoying both functional fitness and bodybuilding styles of workouts. He strongly believes that you should always have balance and likes to spend his time at the weekends socialising with his friends.