20-Minute Strength and SIT Workout for Women Over 40 (Dumbbells Only)

This 20-minute strength and SIT workout combines full-body dumbbell strength with short sprint intervals for women over 40. 🔥

This One Is an Inner Circle Exclusive

This 20-minute Strength and SIT Express workout is available exclusively inside the Garage Fitness Girl Inner Circle. Members can enjoy the full follow-along workout ad-free and music-free, along with a new exclusive workout every month.

👉 Join the Inner Circle here

Already a member? Your workout is ready and waiting!

Twenty Minutes That Keeps Raising the Stakes 💪

Short on time but still want a workout that challenges you? This one’s for you. We’re combining full-body dumbbell strength with short, powerful bursts of sprint interval training (SIT), all in one efficient session.

But there’s a little twist to this workout. Rather than starting with the hardest exercises and winding things down, we’re doing the opposite. Each block gradually increases the challenge, with work intervals progressing from 30 seconds to 40 seconds and finally 50 seconds.

And it’s not just the intervals that change. The exercises progress too. You’ll revisit the same movement patterns throughout the workout, but each block introduces a more challenging variation. What begins as a Front Squat in Block 1 becomes a Lateral Walking Thruster by Block 3.

The result? A workout that keeps you focused, challenges your strength and cardiovascular fitness, and makes every minute count. It’s short, it’s challenging, and you’ll definitely know you’ve worked. Grab your dumbbells and let’s get into it!

What You’ll Gain

You don’t need an hour to have a productive training session. With the right structure, 20 minutes can be incredibly effective. Here’s what we’re working on:

• ✔️ Progressive strength challenges: Longer intervals and more demanding exercise variations keep your muscles working as the session progresses.
• ✔️ Full-body strength and cardiovascular fitness: Build strength while challenging your heart and lungs in the same workout.
• ✔️ Short, effective SIT intervals: Push your cardiovascular fitness with brief bursts of high-intensity movement followed by generous recovery.
• ✔️ Muscular endurance: Increasing the work intervals challenges your ability to maintain good technique as your muscles fatigue.
• ✔️ Time-efficient training: A complete, structured workout that fits into even your busiest days.

The goal isn’t simply to squeeze as much exercise as possible into 20 minutes. It’s to make those 20 minutes purposeful.

Workout Overview

Why This Strength and SIT Workout Works for Women Over 40

Progressive overload is the whole game. If there’s one thing I want women over 40 to prioritise, it’s strength training that continues to challenge them.

As we move through our 40s and beyond, maintaining muscle becomes increasingly important. Not just for how we look, but for how we move, how strong we feel and how well we function in everyday life.

And building strength requires giving your muscles a reason to adapt. That’s where progressive overload comes in.

Traditionally, we think of progressive overload as gradually increasing the weight we lift. And while lifting heavier over time is an important part of getting stronger, it’s not the only way to make an exercise more challenging.

We can also increase repetitions, extend time under tension or introduce more demanding movement variations. That’s exactly what we’re exploring in this workout.

Each block increases the challenge by extending the work interval and progressing the exercises. This isn’t a replacement for progressively lifting heavier over weeks and months, but it’s a great way to introduce variety and challenge your muscular endurance within a shorter session.

And there’s a good reason to keep strength training a priority. As we age, we naturally become more susceptible to losing muscle mass, particularly if we’re not actively working to maintain it. The hormonal changes associated with perimenopause and menopause make preserving muscle and supporting bone health especially important.

Research highlighted by Stanford Lifestyle Medicine reinforces the value of strength training during this stage of life. The takeaway? Keep challenging your muscles, keep building strength and don’t underestimate what consistent resistance training can do for you.

SIT gives you cardio without the long grind. SIT stands for sprint interval training. It’s a form of high-intensity interval training that alternates short bursts of very hard effort with longer recovery periods.

For this workout, we’re using a simple format: 20 seconds of work followed by 40 seconds of recovery. That might sound like a lot of rest, but there’s a reason behind it.

Those 20 seconds are your opportunity to really challenge yourself, while the longer recovery helps you prepare for the next effort. Rather than trying to sustain a high intensity for an extended period, you’re working hard in short, manageable bursts.

It’s a time-efficient way to challenge your cardiovascular fitness, and it pairs beautifully with strength training. For women navigating perimenopause, I particularly like having the option to adjust intensity according to how we’re feeling and recovering.

Some days you’ll feel ready to push. Other days, a lower-impact variation or a more controlled pace is exactly what your body needs. Both are valid.

The key is finding an intensity that challenges you appropriately without leaving you feeling completely depleted.

Short sessions are the ones you repeat. One of the biggest lessons I’ve learned after years of training women is that consistency matters far more than the occasional perfect workout. And sometimes, 20 minutes is all you’ve got.

Between work, family, changing energy levels and everything else life throws at us, longer training sessions aren’t always realistic. But that doesn’t mean your training has to stop.

A well-structured 20-minute session can help you maintain momentum, challenge your muscles and support your fitness goals without taking over your day.

It’s not about doing less because you’re getting older. It’s about training in a way that works for your body and your life. Consistency over intensity. Energised, not exhausted. Always.

The Full Strength and SIT Workout

Warm Up

1️⃣ Squat Touchdown
2️⃣ Cross Body Speed Walk
3️⃣ Windmill
4️⃣ Butt Kicks

Block 1 | 1 Round · 30s work / 15s rest

1️⃣ Front Squat | 10kg/22 lbs
15 secs rest
2️⃣ Alt Bent-Over Row | 10kg/22 lbs
15 secs rest
3️⃣ Deadlift | 10kg/22 lbs
20 secs rest

🔥 SIT Burst | 3 rounds · 20s work / 40s rest
⚡ Pausing High Knees

Block 2 | 1 Round · 40s work / 15s rest

1️⃣ Squat to Curl | 7kg/15.5 lbs
15 secs rest
2️⃣ Bear Renegade Row | 7kg/15.5 lbs
15 secs rest
3️⃣ Sumo Deadlift Pulse | 10kg/22 lbs
20 secs rest

🔥 SIT Burst | 3 rounds · 20s work / 40s rest
⚡ Fast Skaters

Block 3 | 1 Round · 50s work / 20s rest

1️⃣ Lateral Walking Thruster | 7kg/15.5 lbs
20 secs rest
2️⃣ Renegade Row to Push-Up | 7kg/15.5 lbs
20 secs rest
3️⃣ Sumo Deadlift Walk Out Jump | 10kg/22 lbs
20 secs rest

🔥 SIT Burst | 3 rounds · 20s work / 40s rest
⚡ Sprawl

Workout Complete 🔥 My Recorded Burn: ~144 Calories

Exercises Worth Calling Out

One of my favourite things about this strength and SIT workout is how the exercises develop across the three blocks. We’re not simply repeating the same movements for longer. We’re building on them. Here are three exercise progressions worth paying attention to.

Front Squat → Squat to Curl → Lateral Walking Thruster. We begin with a Front Squat, focusing on lower-body strength and control. In Block 2, we introduce the Squat to Curl, adding an upper-body movement while maintaining the squat pattern.

By Block 3, we’ve progressed to the Lateral Walking Thruster, combining a lateral step, squat and overhead press. It’s a great example of how one movement pattern can evolve into a more complex full-body exercise.

Alt Bent-Over Row → Bear Renegade Row → Renegade Row to Push-Up. Our pulling exercises follow a similar progression. We start with a traditional Bent-Over Row before moving to the floor for the Bear Renegade Row.

This introduces a greater stability challenge, particularly through the core and shoulders. Finally, the Renegade Row to Push-Up combines pulling and pushing in one movement, making it a challenging full-body exercise. Remember, maintaining good form is always more important than lifting heavier.

Sumo Deadlift Walk Out Jump. This is our final hinge progression, and it’s a challenging way to finish the strength portion of the workout. We’re combining a sumo deadlift pattern with a walk-out and explosive jump, bringing together lower-body strength, core stability and cardiovascular effort.

But don’t worry if jumping isn’t for you. You can remove the jump and perform a controlled, low-impact variation while still getting a great workout. The goal is to challenge yourself at the level that’s right for you.

Trainer Tips

A few things to keep in mind to help you get the most from this strength and SIT workout:

• ✔️ Choose your weights carefully. The final few repetitions of each strength interval should feel challenging, but you should still be able to maintain good form.
• ✔️ Be prepared to adjust your dumbbells. What feels manageable for 30 seconds might feel very different when you’re working for 50 seconds. There’s absolutely nothing wrong with dropping your weight.
• ✔️ Use heavier weights for simpler strength movements. Exercises like squats and deadlifts may allow you to lift heavier than combination movements involving curls, presses or additional stability demands.
• ✔️ Make your SIT intervals count. Aim for a strong, challenging effort during those 20 seconds, then use the recovery to catch your breath. If you’re new to sprint intervals, build your intensity gradually.
• ✔️ Keep your mat nearby. We’ll be heading to the floor in Block 2 for the Bear Renegade Row, so having everything ready will make your transitions easier.

And most importantly, remember that intensity is personal. Your challenging effort might look very different from mine, and that’s exactly how it should be.

Who This Strength and SIT Workout Is Perfect For

This strength and SIT workout is ideal for women who enjoy a challenge but don’t always have time for a longer training session. Maybe you’ve had a busy week, your usual routine has gone out the window, or you’re simply looking for something shorter that still feels worthwhile.

You don’t need to skip your training altogether. Twenty minutes of purposeful movement can be a great way to keep showing up for yourself. It’s also a fantastic option if you enjoy variety.

The intervals change, the exercises progress, and each block brings something different to focus on. And because you know exactly what’s coming next, it’s easier to stay motivated right through to the finish.

While this workout is particularly suited to women who already have some strength training experience, beginners can also participate by choosing lighter weights, using the modifications shown and working at a comfortable intensity.

Remember, the best workout is one that challenges you appropriately and leaves you feeling good about what you’ve achieved.

What to Try Next

👉 25-Minute Barbell Strength and SIT Workout for Women Over 40
👉 25 Min Upper Body & Abs Strength and SIT Workout
👉 Should You Do Strength and Cardio in the Same Workout After 40?

Frequently Asked Questions

Is this strength and SIT workout suitable for perimenopause?

Absolutely. Strength training and cardiovascular exercise can both play an important role in supporting health and fitness through perimenopause. The combination of resistance exercises and short SIT intervals gives you the opportunity to work on both in one session.

The important thing is to adjust the intensity to suit your individual fitness level, energy and recovery needs. If you’re experiencing fatigue or having a lower-energy day, take the modifications and reduce the intensity where needed.

What weight dumbbells should I use?

I used 7kg/15.5 lbs and 10kg/22 lbs throughout this workout. However, your weights should reflect your own strength and experience. Aim for a load that makes the final few repetitions challenging without compromising your technique.

Having two sets of dumbbells is ideal, allowing you to use heavier weights for movements like squats and deadlifts and lighter weights for combination exercises.

Can I do this strength and SIT workout as a beginner?

Yes, provided you’re comfortable with the movement patterns and choose appropriate modifications. I show alternatives for the Bear Renegade Row, Renegade Row to Push-Up, Sumo Deadlift Walk Out Jump and all three SIT bursts.

Start with lighter dumbbells, reduce the intensity of the cardio intervals and take additional rest whenever you need it. There’s no need to keep up with my pace. Focus on moving well and building confidence.

How many calories does this strength and SIT workout burn?

My recorded calorie burn for this session was approximately 144 calories. Your actual energy expenditure will vary depending on factors such as body size, fitness level, workout intensity and the weights you’re using.

But remember, calories burned are only one small part of the picture. The strength, fitness and consistency you’re building are far more valuable than any number on your watch.

How often should I do this strength and SIT workout?

Once or twice a week can work well as part of a balanced training routine, depending on your other workouts and how well you’re recovering. Because this session combines strength and higher-intensity cardio, it’s worth allowing adequate recovery between challenging sessions.

It’s also a brilliant option to keep in your back pocket for those busy days when a longer workout simply isn’t happening.

Do I need a gym?

Not at all! All you need is a set of dumbbells, an exercise mat and enough space to move comfortably. You can do this workout at home, making it a convenient option when time is limited.

Why do the intervals get longer instead of shorter?

I wanted this workout to build in intensity rather than gradually wind down. Starting with 30-second intervals gives you an opportunity to establish the movement patterns before progressing to longer work periods and more complex exercise variations.

By the final block, you’ll be working for 50 seconds per exercise, which adds a real muscular endurance challenge. It’s a fun way to keep a short workout interesting, purposeful and challenging right through to the finish.

Ready to Give This Strength and SIT Workout a Go?

I’d love to know which block challenged you the most. I have a feeling Block 3 might be the winner! 😅

And remember, you don’t have to spend hours working out to make progress. Keep showing up, keep challenging yourself and keep building strength in a way that works for you.

Consistency over intensity. Strong and energised, not exhausted. Always. 🔥

Penny x