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20-Minute Strength and Abs Workout

This 20-minute dumbbell workout is a fast, effective way to build full-body strength and core stability at home. By focusing on compound exercises, this workout targets every major muscle group while improving balance, coordination and functional strength. Add this quick and effective home workout to your routine to boost energy and build muscle.

There was a time when I thought I needed an hour at the gym to get a “real” strength workout. But once I had kids, I had less time to dedicate to my workouts. So, I started carving out just 20 minutes at home with my dumbbells. As it turns out, 20 minutes is more than enough time to build strength, as long as you focus on the right exercises. 

In fact, short, consistent strength sessions often deliver better results than longer workouts done inconsistently. When you train efficiently, you build strength that helps you move better in everyday life (from carrying laundry baskets upstairs to keeping up with energetic kids).

I’ve also learned that it’s perfectly okay to do a 20-minute workout every day, as long as you balance intensity. Some days, I push heavier on compound moves like squats, presses or deadlifts, and other days I lean into core stability and lighter conditioning. That variety keeps my muscles challenged without overtraining my body, and it ensures I’m getting the functional benefits that really matter, like joint health and bone density.

When it comes to the best way to spend 20 minutes, I always come back to a simple full-body dumbbell routine that doubles as an ab workout. I typically start with squats for my legs and glutes, presses for my shoulders and chest, rows for my back and deadlifts for my hamstrings and lower back. Then I’ll layer in core-focused moves targeting the upper abs, lower abs and total core. This combination works every major muscle group while challenging stability, which is key for real-life strength. Just 2-3 sets of 10-12 reps per exercise is enough to leave me feeling stronger and more energized.

If you’re newer to strength training, don’t overthink it. Stick with compound exercises that train multiple muscles at once. Exercises like goblet squats, rows, presses and Romanian deadlifts are perfect places to start. These movements not only build muscle and boost metabolism, they also improve balance and coordination, making everyday tasks easier and safer.

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Today’s workout features our YouTube Community Member, Brittany! She is a mom of two and a breast cancer survivor who crushed this workout!

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three people posing after completing a 20 minute strength workout together
three women performing a wide squat in a 20 minute strength workout

Read A 5-Star Review ⭐⭐⭐⭐⭐

“Awesome & effective workout! My heart rate still went up even with this being no cardio. Also, I’m a fellow breast cancer survivor… I’m with Brittany, I’ve never been stronger b/c of NML. Thank you Lindsey, Rachel, & all your staff for what you do! It’s hard work but you guys are changing lives! #TeamNML 💪”

— Sonya E.

This 20-minute low-impact strength workout combines my favorite dumbbell exercises to target the total-body and core. Modifications are provided for both beginners and advanced athletes to scale the workout to meet your needs.

I recommend adding full-body dumbbell workouts like this one to your home workout routine 1-2 times a week to improve strength and muscular endurance.

If you’re interested in more dedicated core training, try my 30-Day Abs Challenge. If you need core modifications for beginners or pregnancy, I have those available as well!

Workout Equipment

Medium to Heavy Set of Dumbbells. I’m using 15-25 lbs.

Workout Instructions

Follow along with the guided 20-Minute Full-Body Dumbbell Workout on YouTube, led by me — your certified personal trainer, Lindsey Bomgren.

Your Workout Looks Like This:

  • Guided Warm-Up and Cool-Down
  • 2 Full-Body Circuits (2 strength exercises and 1 ab exercise per circuit)
  • Timed Intervals (perform each exercise for 40 seconds of work, 20 seconds of rest)
  • Triset Format (repeat each strength exercise x 3 sets and each ab exercise x 1 set)
  • Bonus Ab Finisher

1. Deadlift, Clean and Reverse Lunge

Targets: Hamstrings, glutes, hips, quads, back, shoulders and core.

three women demonstrating a deadlift clean and reverse lunge in a 20 minute strength workout

How to Do a Deadlift, Clean and Reverse Lunge

  1. Stand with your feet shoulder-width apart and knees slightly bent. Hold a pair of dumbbells at your sides.
  2. Hinge forward at the hips, pushing your hips back as you lower the dumbbells along the front of your body. You should feel a stretch in the back of your legs (range of motion looks different for everyone). Focus on keeping your back in neutral alignment with your neck and shoulders throughout the entire movement (straight line from head to tailbone). Keep a slight bend in your knees to avoid ‘locking out’ the joint.
  3. Drive through your heels, squeezing your glutes as you drive your hips forward to return to the starting position.
  4. As you stand tall, clean the dumbbells up, catching them at shoulder height.
  5. Step your right leg back into a reverse lunge, lowering your hips until both knees reach a 90-degree angle, front thigh parallel to the ground.
  6. Squeeze your left glute, driving your back, right leg forward as you stand tall, returning to the starting position.

Modification: Omit the dumbbell clean, keeping the weights by your sides as you perform the reverse lunge. If lunges are uncomfortable, check out these alternative exercises.

2. Bicep Curl and Overhead Press

Targets: The biceps brachii (the front of your arms), shoulders, triceps, rear delts, upper back and core.

three women performing a bicep curl and overhead press in a 20 minute strength workout

How to Do a Bicep Curl and Overhead Press

  1. Start standing, feet shoulder-width apart and core engaged. Hold a dumbbell in each hand at your sides, palms facing in towards each other (hammer curl).
  2. Perform a bicep curl by squeezing the front of your arms to curl the dumbbells up to shoulder height. Think about keeping your elbows tucked into your side and your shoulder blades pulled down.
  3. Pause when the dumbbells reach your shoulders, then perform a narrow overhead shoulder press by pushing the dumbbells overhead until your arms are fully extended, with your biceps near your ears.
  4. Slowly and with control, lower the dumbbells down to shoulder level. Then curl the weights down to your side, returning to the starting position.
  5. In this variation of the exercise, perform 2 bicep curls into 2 overhead presses.

3. Plank and Arm Extensions

Targets: Upper abs, obliques, transverse abs, shoulders and back.

woman demonstrating plank and arm extensions and two women demonstrating a standing modification in a strength workout

How to Do a Plank and Arm Extension

  1. Start in a low plank or forearm plank position. Your shoulders are stacked over your elbows, and your core is engaged. Keep your hips in line with the rest of your body, avoiding sagging or piked hips.
  2. Fully extend your right arm out to tap the mat in front of you. Keep the core engaged and hips square to the mat. 
  3. Pull the right arm back in, returning to a forearm plank. 
  4. Alternate arms, fully extending your left arm in front of you. Again, try to keep your hips stable and square to the mat as you alternate reaching your arms straight out.

Modification: Perform a standing goblet march.

4. Wide Squats

Targets: Glutes, quads, hamstrings, hips, outer thighs (abductors) and inner thighs (adductors).

three women demonstrating wide squats in a 20 minute strength workout

How to Do a Wide Squat

  1. Stand with your feet wider than your hips, heels in and toes pointed out (sumo squat stance). Hold a pair of dumbbells between your legs.
  2. Bend your knees to lower down into a sumo squat, pushing your knees out towards your pinky toes as you drop your hips parallel to your knees.
  3. Drive through your heels, squeezing your glutes and pulling your inner thighs together to stand tall.

5. Push-Up and Renegade Row

Targets: Back, chest, biceps, triceps, shoulders and core.

woman performing a push up row and two women demonstrating a standing modification in a 20 minute strength workout

How to Do a Push-Up and Renegade Row

  1. Start in a high plank position, both hands on your dumbbells, shoulders stacked over wrists, core engaged.
  2. Perform a push-up by lowering your chest to the ground, letting your elbows fall back towards your hips. Exhale, pushing back up to the starting position.
  3. Then, perform a single arm plank row (or renegade row) on each side, pulling first your right elbow to your right hip, then planting it on the ground. When the right hand is planted, pull your left elbow to your left hip before returning it to the ground.

Modification: Perform a standing dumbbell back row to dumbbell press out. You can also perform modified push-ups from your knees or at an incline. If push-ups hurt your wrists, try placing your hands on a set of dumbbells.

6. Seated or Russian Twist

Targets: Upper abs, lower abs, obliques, core and hips.

three women performing a seated twist in a 20 minute strength workout

How to Do a Seated or Russian Twist

  1. Start in a seated position on the ground or on a yoga mat. Lean your torso back until you feel your core engage. Option to hold a dumbbell horizontally in both hands. To make it more difficult, float one or both feet off the ground.
  2. On an exhale, rotate your shoulders and torso to the right as you bring the dumbbell to tap the mat outside of your right hip. Inhale as you use your obliques and outer abs to return your chest to center.
  3. Then repeat on the opposite side, rotating your shoulders to the left as you bring the dumbbell to tap the mat outside of your left hip.

Modification: Omit the dumbbell, using just your bodyweight.

7. Dead Bug

Targets: Deep core muscles (transverse abdominis), lower abs, hips, shoulders and back (posterior and anterior deltoids).

three women demonstrating a dead bug exercise in a 20 minute strength workout

How to Do a Dead Bug

  1. Lie on your back flat on the floor, performing a slight pelvic tilt to press your lower back into the mat. Lift your knees to form a 90-degree angle (knees stacked on top of hips).
  2. Hold a dumbbell in each hand and extend your hands straight overhead toward the ceiling. Inhale, letting your belly expand.
  3. Exhale, engaging your core and simultaneously extending your left leg and right arm away from your body, lowering the dumbbell in your right arm towards the ground with control. Left arm and right leg remain in place. With control, inhale as you return to the starting position.
  4. Then repeat on the opposite side, exhaling as you extend your right leg and left arm away from the body, lowering the dumbbell in your left arm towards the ground. With control, return to the starting position.

Modification: Omit the dumbbells, using no equipment for this exercise.

Are full-body workouts good for building strength?

Yes, total-body workouts are one of the most effective ways to build strength, especially if you’re short on time. By working multiple muscle groups in the same workout, you build lean muscle mass while also improving balance, coordination and functional fitness. This approach ensures you’re effectively targeting the upper-body, lower-body and core in your workouts.

Should you strength train or go for a run?

Ultimately, whether you should strength train or go for a run depends on your fitness goals. If your goal is to build muscle, boost your metabolism and increase bone density, strength training is a good option. If your goal is to improve your cardiovascular health and endurance, you might go for a run. Including both cardio and strength training gives you the best of both worlds: a strong, capable body and a healthy heart.

What is the 3-2-1 method of strength training?

The 3-2-1 method is a way of structuring your weekly workout split. This plan includes 3 days of strength training workouts, 2 days of pilates and 1 day of cardio or HIIT workouts. It’s helpful if you want to vary your workout routine and maximize results in a short amount of time.

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