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Low Impact HIIT — Workout 3

This 20-minute beginner workout focuses on 20 minute beginner low impact hiit with dumbbells. Led by Danielle Harrison, it targets shoulders, quads, core with evidence-based exercises designed for women of all fitness levels.

Exercise Breakdown

14 exercises in Workout 3

Warm-up3 exercises
1m 28s
0:30
Warm-up: Side Steps and Arm Circles

Circling those arms forward, let's get those shoulders nice and warm.

full bodyshouldersarms
low
1:06
Warm-up: Quad and Hamstring Stretches

Hold it, balance, little stretch of the quad.

quadshamstringsbalance
low
1:31
Warm-up: Squats and Downward Dog

Feet nice and wide for me, some squats.

glutesquadshamstringsshoulders
low
Strength2 exercises
58s
8:31
Reverse Lunge with Overhead Press

Changing the leg each time, reverse and press.

quadsglutesshouldersarms
medium
9:01
Reverse Fly with Step Out

Slight bend in the arms.

upper backshoulderscore
medium
Cardio8 exercises
3m 55s
2:15
Squat with Knee Tap

It's not a full squat. We're not going all the way down, half squat.

quadsglutescore
medium
2:46
Skater Lunges

Be careful of this knee, please. When you take it behind, keep the knee in line over the foot.

glutesouter thighsquads
medium
3:16
High-Knee March with Jabs and Crosses

Opposite arm to leg — I want the knee ideally above the hips.

armsshoulderscorehip flexors
medium
3:46
Uppercuts

This is your palm facing core.

armsbicepsshoulderscore
medium
8:00
Oblique Knee-to-Elbow Crunches

Try and get nice and lifted as you extend out of that.

corehip flexors
medium
9:31
Knee Drives

We're gonna lose one weight... knee drives, nice and light.

corehip flexorsquads
high
17:00
Finisher: Thrusters

Light weights only, thrusters.

full bodyquadsshoulders
high
17:31
Finisher: Speed Jabs and Crosses

If we keep our feet moving, maybe we'll get distracted by our arms being on fire.

armsshoulderscore
high
Cool-down1 exercise
1m 37s
18:10
Cool Down: Stretching

Slowly roll up to standing, head comes up last.

full bodyshoulderscalveships
low

Muscles Targeted

Primary

shouldersquadscore

Secondary

armsglutesfull body

Equipment & Modifications

Equipment Needed

  • dumbbells

Don't Have Equipment?

You can substitute with:

water bottlescanned goodsresistance bands

Available Modifications

  • Keep it high up here if you need it
  • Not a full squat, half squat
  • Add light weights in second round
  • Straight squat without knee tap
  • Step it instead of jumping
  • Take a big step if you have space
  • Add light weights
  • Take it slower if need be
  • Vary speed between slow and quick
  • Break it down: reverse, press, then bring it back in
  • Use one weight or no weights
  • Hold the stretches for longer if you have time

Coaching Highlights from Danielle Harrison

Circling those arms forward, let's get those shoulders nice and warm.

Form

Be careful of this knee, please. When you take it behind, keep the knee in line over the foot.

Safety

If you are struggling getting the knees up, take those light weights in front of you, press them together, just give me a squat.

Modification

If we keep our feet moving, maybe we'll get distracted by our arms being on fire.

Motivation

Danielle's approach centers body awareness over aesthetics. She coaches the internal experience of movement, not just the mechanics.

Form

Health Benefits

Women who want to build real shoulders and quads strength without a gym membership. Particularly relevant if you're navigating unexplained weight gain, dating after 40, or aging appearance. No fitness background required. Danielle Harrison meets you where you are.

unexplained weight gain

90% relevant

muscle mass preservation (metabolic rate); insulin sensitivity improvement; cortisol management; body composition over scale weight

dating after 40

90% relevant

Stress reduction and emotional regulation through parasympathetic activation; Improved body awareness, confidence, and self-perception; Enhanced posture and physical presence for increased self-assurance; Increased energy and vitality for social engagement; Development of lean muscle mass for metabolic health and body composition

aging appearance

90% relevant

Increased collagen production and skin elasticity through resistance training; Improved circulation and nutrient delivery to skin cells; Enhanced muscle definition and tone to reduce appearance of sagging; Better posture to create a more youthful and confident appearance; Stress reduction and cortisol management (via Yoga/Pilates) to mitigate cellular aging; Improved lymphatic drainage to reduce puffiness

self worth decline

90% relevant

Enhances body awareness and interoception, fostering a more positive self-perception.; Builds physical strength and competence, translating to increased self-efficacy and confidence.; Promotes parasympathetic nervous system activation, reducing stress and improving emotional regulation.; Offers a structured routine and sense of accomplishment, counteracting feelings of helplessness.; Improves posture and physical presence, which can positively impact self-image and how one is perceived.

difficulty losing weight

90% relevant

Increased basal metabolic rate through muscle mass development; Improved insulin sensitivity and glucose regulation; Enhanced hormonal balance (e.g., cortisol management, estrogen metabolism); Reduced visceral fat accumulation; Improved body composition and fat-to-muscle ratio; Stress reduction and improved sleep quality (indirectly supports weight management)

Relevant For

back painbalancebone densitycardiovascularcoordinationcore strengthfatigueflexibilityknee painmetabolismpostureshoulder painstressupper backweight gain

Frequently Asked Questions

What muscles does this muscle tone workout target?

The primary targets are shoulders, quads, core, with secondary activation through arms, glutes, full body. Danielle Harrison programs 14 exercises across 20 minutes — standout moves include Reverse Lunge with Overhead Press (quads, glutes). Reverse Fly with Step Out (upper_back, shoulders). According to SeniorShape Fitness, compound movements like these build functional strength that translates directly to daily life. This is a beginner-friendly session, but the muscle engagement is real. It works well as a arm toning exercises session. The core strengthening exercises in this session build deep stability that supports everything from your posture to your pelvic floor.

What equipment do I need for this workout?

You'll need dumbbells. Don't have everything? Swap in water bottles, canned goods, resistance bands. Danielle Harrison shows exactly when to grab each piece so you're not scrambling mid-circuit. Many women use this as their primary shoulder workouts with dumbbells routine.

Is this workout suitable for beginners?

Yes. Danielle Harrison designed this session for people who are starting out or coming back after a break. Modifications shown throughout: Keep it high up here if you need it; Not a full squat, half squat. The 20-minute format is deliberate — long enough to challenge your muscles, short enough that you'll actually finish.

How long is this workout?

About 20 minutes, start to finish. That includes 3 warm-up movements and a proper cool-down. Danielle Harrison doesn't skip either end, which matters more than people think. 14 exercises total.

Are there modifications available for this workout?

Danielle Harrison provides modifications throughout. Examples: Keep it high up here if you need it; Not a full squat, half squat; Add light weights in second round; Straight squat without knee tap; Step it instead of jumping; Take a big step if you have space; Add light weights; Take it slower if need be; Vary speed between slow and quick; Break it down: reverse, press, then bring it back in; Use one weight or no weights; Hold the stretches for longer if you have time. The point isn't to suffer through a move you can't do with good form. Danielle Harrison's philosophy is clear: own the movement at your level first. Your body will tell you when it's ready for the next progression.

What health benefits does this Low Impact HIIT workout offer beyond fitness?

This session has direct relevance for women dealing with unexplained weight gain, dating after 40. The combination of exercises Danielle Harrison chose targets not just aesthetics but functional health markers — bone density, insulin sensitivity, cortisol regulation. A study by We Talk Menopause found that this type of training produces measurable improvements in these areas. The beginner-level programming means these benefits are accessible without risking injury.

How often should I do this workout?

Two to three times per week with at least one rest day between sessions. Your muscles need 48-72 hours to repair and grow stronger after resistance work. Danielle Harrison designed Low Impact HIIT as a progressive series, so doing the workouts in order gives your body time to adapt. If you're sore for more than two days, that's your body saying slow down, not push harder.

Why does this workout emphasize shoulders exercises?

Because shoulders strength is foundational. It supports everything from posture and balance to injury prevention and daily movement quality. Danielle Harrison programs shoulders-focused work into this session because it's the area most women lose strength in first during their 30s and 40s. The exercises here aren't random — they build on each other.

Can I do this workout if I have joint pain or stiffness?

Start with the modifications Danielle Harrison shows and see how your body responds. Many of the exercises in this session can be scaled — lower range of motion, lighter load, slower tempo. Joint stiffness in your 30s and 40s often improves with consistent movement, not avoidance. That said, sharp pain during any exercise means stop. Pain is information, not a challenge to push through.

Related Workouts & Topics

About the Trainer

Danielle Harrison

Danielle Harrison

Muscle Tone Trainer

From: Low Impact HIIT