RIRLift app icon RIRLift

Exercises

HIIT exercises for weight loss: intervals that fit around a diet

Published October 29, 2026

The best HIIT exercises for weight loss are the air bike, rowing machine, ski erg and treadmill sprints in the gym, sled pushes, battle ropes and kettlebell swings for loaded intervals, and burpees, jump rope and mountain climbers at home. Work 20 to 60 seconds hard, recover as long or longer, and keep each session to 15 to 25 minutes. Two or three sessions a week next to two or three strength sessions is the mix that works: the intervals add calorie burn in little time, and the lifting keeps more of the weight you lose coming from fat rather than muscle.

  1. Air Bike Quads, Hamstrings, Glutes
  2. Rowing Machine Quads, Hamstrings, Glutes, Lats
  3. Sled Push Quads, Glutes
  4. Kettlebell Swing Glutes, Hamstrings
  5. Burpee Quads, Glutes, Chest, Shoulders
  6. Jump Rope Calves, Quads
  7. Treadmill Walk Quads, Glutes, Calves

Bikes, rowers and the ski erg

Machines are the easiest way to go truly hard for 20 to 60 seconds and then back off on cue. They carry no impact, the screen shows whether this interval matched the last one, and you can push the last rep without your form breaking down.

Full body, fan-bike sprints

Air Bike

Quads, Hamstrings, Glutes

The harder you push and pull an air bike, the more the fan resists, so 20 seconds all-out is hard for a beginner and an athlete alike. It is the most efficient interval tool in most gyms and has zero impact.

How to do it

  1. Set the seat so your knee is slightly bent at the bottom.
  2. Let your arms drive the handles in time with your legs.
  3. Start easy for 2 minutes and 30 seconds, then build to moderate for the last 30 seconds.

Cues

  • Arms push and pull
  • Breathe through your nose at first

Common mistakes

  • Sprinting in the first minute: save it for the WOD.
  • Gripping the handles so tight your shoulders shrug.

Swap for: Rowing Machine, Stationary Bike, Ski Erg

Build a session with Air Bike
Log it in RIRLift

Legs, back and arms, rowing

Rowing Machine

Quads, Hamstrings, Glutes, Lats

Each stroke uses the legs, hips, back and arms, so a 45 to 60 second rowing interval involves more muscle than almost any other cardio. The monitor shows meters per interval, which makes progress easy to track.

How to do it

  1. Strap your feet in and hold the handle with straight arms.
  2. Push with your legs first, then lean back slightly and bring the handle to your lower ribs.
  3. Reverse the order on the way back: arms forward, body tips forward, knees bend.
  4. Keep the pace conversational, around 20 strokes a minute.

Cues

  • Legs, body, arms; arms, body, legs
  • Easy enough to talk

Common mistakes

  • Racing the first minute: this is a warm-up, so finish feeling fresher than you started.

Swap for: Stationary Bike, Air Bike, Jump Rope

Build a session with Rowing Machine
Log it in RIRLift

Lats, shoulders and core, standing pull

Ski Erg

Shoulders, Upper Back

The ski erg puts the upper body and trunk to work while the legs stay mostly still, so it suits intervals on a day your legs are sore from squats.

How to do it

  1. Stand facing the machine with the handles above your head and arms straight.
  2. Pull the handles down toward your thighs, hinging your hips back and bending your knees slightly.
  3. Finish with the hands beside your thighs and your torso leaning forward.
  4. Rise back up and reach high for the next stroke, keeping a steady rhythm.

Cues

  • Reach tall at the top
  • Pull with lats, not just arms
  • Hinge into each stroke

Common mistakes

  • Pulling only with the arms: drive the handles down with your lats and a hip hinge.
  • Going too hard on the first interval: pace so the last one is as strong.

Swap for: Rowing Machine, Battle Rope Wave, Air Bike

Build a session with Ski Erg
Log it in RIRLift

Quads and hamstrings, cycling

Stationary Bike

Quads, Hamstrings

A regular upright or spin bike lets you climb to hard resistance for 30 to 60 seconds with your weight on the seat. For a larger body it is the gentlest way to start intervals.

How to do it

  1. Adjust the seat to hip height when you stand beside the bike.
  2. Pedal at a light resistance with a steady, smooth cadence.
  3. Add a little resistance in the last minute so you finish slightly out of breath.

Cues

  • Smooth circles
  • Slightly warm, not tired

Common mistakes

  • Cranking heavy resistance: this is to get warm, not to train your legs before chest day.

Swap for: Air Bike, Rowing Machine, Elliptical

Build a session with Stationary Bike
Log it in RIRLift

Treadmill intervals

Sprints for people who already run, steep walking for everyone else. Raising the incline lets you reach a hard effort at walking speed, which matters when every extra pound lands on your knees with each stride.

Legs, running intervals

Treadmill Run

Quads, Hamstrings, Glutes

Short sprints of 15 to 30 seconds at a speed you could not hold for long are classic HIIT. Keep them for people who already run comfortably, since sprinting from zero is hard on the calves and hamstrings.

How to do it

  1. Move from your walking start to an easy jog.
  2. Stay in the middle of the belt with a short, quick stride.
  3. Raise the speed by small steps once the jog settles.
  4. For pick-ups, step the speed up for the stated time, then return to the jog.

Cues

  • Middle of the belt
  • Light landings

Common mistakes

  • Drifting to the back of the belt
  • Overstriding to keep up with the belt

Swap for: Running, Elliptical

Build a session with Treadmill Run
Log it in RIRLift

Legs, steep walking

Treadmill Walk

Quads, Glutes, Calves

Walking hard up a 10 to 15 percent incline gets your heart rate close to a jog's with far less landing force. Hands off the rails, or most of the effort disappears.

How to do it

  1. Start the belt at an easy walking pace.
  2. Raise speed or incline every minute until you are walking briskly.
  3. Walk with a normal arm swing.

Cues

  • Let go of the rails.
  • Short, quick steps as speed rises.

Common mistakes

  • Holding the rails and leaning back.

Swap for: Brisk Walk, Elliptical

Build a session with Treadmill Walk
Log it in RIRLift

Loaded intervals

Pushing, whipping or swinging a load works muscle and lungs together. These are the best picks when you want a short session to feel like training rather than just sweating.

Quads and glutes, pushing

Sled Push

Quads, Glutes

A sled push is all effort and no impact: there is no lowering phase and no landing, so you can go very hard without much soreness the next day. Twenty-meter pushes make natural intervals.

How to do it

  1. Load the sled and grip the high or low handles with your arms extended.
  2. Lean in until your body forms a straight line from head to back foot.
  3. Drive the sled forward with short, powerful steps, pushing through the balls of your feet.
  4. Keep pushing for the target time, then rest fully.

Cues

  • Low body angle
  • Short, hard steps
  • Keep the arms locked

Common mistakes

  • Standing too upright so the sled stalls: lower the hips and lean in.
  • Long, loping strides: keep steps short and fast.

Swap for: Sled Pull, Air Bike, Barbell Back Squat

Build a session with Sled Push
Log it in RIRLift

Shoulders and core, rope waves

Battle Rope Wave

Shoulders, Abs

Alternating waves keep your arms and trunk working at a fast rhythm while your legs stay planted, so they are a good interval to rotate in between leg-heavy moves.

How to do it

  1. Hold one rope end in each hand, feet about shoulder width, knees bent.
  2. Whip one arm up while the other goes down to send alternating waves down the ropes.
  3. Keep the waves small and steady for the warm-up, not all-out.

Cues

  • Athletic stance
  • Small, even waves

Common mistakes

  • Standing up straight: stay in a quarter squat.

Swap for: Battle Rope Slam, Jumping Jack

Build a session with Battle Rope Wave
Log it in RIRLift

Glutes and hamstrings, hip hinge

Kettlebell Swing

Glutes, Hamstrings

Swings train the hips and back side of the body and drive your breathing up within 15 reps. In a weight loss plan they are the bridge between a strength exercise and an interval.

How to do it

  1. Stand with your feet a little wider than your hips, the bell set about a foot in front of you.
  2. Hinge down, grip the handle with both hands, and hike the bell back between your thighs.
  3. Snap your hips forward to stand tall, letting the bell float up to about shoulder height on straight arms.
  4. Let it fall back between your legs as you hinge again, and go straight into the next rep.

Cues

  • Hips snap, arms just hold on
  • Stand tall at the top
  • Bell passes high between the thighs

Common mistakes

  • Squatting the swing by bending the knees deeply: push your hips back and keep the shins nearly vertical.
  • Lifting the bell with your shoulders: if your arms are working, the hips are not driving it.

Swap for: Dumbbell Romanian Deadlift, Kettlebell Deadlift, Superman

Build a session with Kettlebell Swing
Log it in RIRLift

No-equipment intervals

For hotel rooms, living rooms and days the gym is out. All three move your whole body fast and need nothing but floor space, or a rope.

Full body, floor to jump

Burpee

Quads, Glutes, Chest, Shoulders

No equipment, every major muscle and a hard interval in 30 seconds. Burpees are the go-to when there is no machine, but their landings make them a poor first choice if your joints already ache.

How to do it

  1. Stand tall, then squat down and plant your palms.
  2. Kick your feet back into a plank.
  3. Jump your feet back under you.
  4. Stand up and jump, reaching your arms overhead.

Cues

  • Fast down, fast up
  • Solid plank
  • Land soft

Common mistakes

  • Sagging hips in the plank: brace on every rep.
  • Slowing to a walk-out: keep it crisp or rest.

Swap for: Half Burpee, Mountain Climber, Dumbbell Burpee

Build a session with Burpee
Log it in RIRLift

Calves and legs, rope skipping

Jump Rope

Calves, Quads

A rope fits in a bag and turns any patch of floor into an interval station. Thirty to sixty seconds of fast skipping is hard work once you can skip without tripping.

How to do it

  1. Hold the handles at hip height with the rope behind you.
  2. Turn the rope with your wrists and hop just high enough to clear it.
  3. Keep a steady, easy rhythm.

Cues

  • Small hops on the balls of your feet.
  • Elbows close to your sides.

Common mistakes

  • Jumping high and swinging from the shoulders.

Swap for: Skipping in Place, Jumping Jack

Build a session with Jump Rope
Log it in RIRLift

Core and hips, running plank

Mountain Climber

Abs

Driving the knees in fast from a plank raises the heart rate with the hands taking part of your weight, a useful low-impact move to put between burpees and rope intervals.

How to do it

  1. Start in a high plank.
  2. Drive one knee toward your chest, then switch legs quickly.
  3. Bursts: 15 seconds at half pace, then faster.

Cues

  • Shoulders over hands
  • Hips level

Common mistakes

  • Raising your hips high.
  • Bouncing on your hands.

Swap for: Plank Jack, Mountain Climber Jump, High Knees

Build a session with Mountain Climber
Log it in RIRLift

Put them together: example sessions

Each session below picks from the exercises above for one situation, with the sets, reps, rest and RIR filled in.

Session 1

You lift three days and are in a calorie deficit

Open in the session builder
  • Workouts2× a week
  • Working sets17 a week
  • Per workout~20 min
  • EquipmentAir Bike, Rowing Machine, Kettlebells

You already strength train and want to add intervals while dieting without losing strength on your main lifts.

Two short machine sessions a week add hard work without competing with your lifting for recovery, which is the risk while eating less. Day A is 8 sprint intervals, Day B is 6 longer rows plus 3 swing sets, each under 20 minutes. The swings stay at 2 reps in reserve because they share your lifting muscles.

Day A: Air bike sprints
ExerciseSets × repsRIRRest
Air BikeSeconds all-out. Pedal easy between. 8 × 15–20 1 100 s

Open Day A: Air bike sprints in the session builder

Day B: Rows and swings
ExerciseSets × repsRIRRest
Rowing MachineSeconds hard. Row easy between. 6 × 45–60 1 75 s
Kettlebell Swing 3 × 15–20 2 1 min

Open Day B: Rows and swings in the session builder

How to run it
Do Day A after an upper-body lifting session or on a rest day, and Day B on a day without squats or deadlifts. Warm up for 5 minutes at an easy pace first. Walk on your other days.
How to progress
Aim to beat your distance or calories per interval by a little each week at the same effort. When all 8 air bike sprints match your best, add a ninth; on the rower, add 5 seconds to each interval up to 60.
Open in the session builder

Session 2

At home, 20 minutes, three days a week

Open in the session builder
  • Workouts3× a week
  • Working sets45 a week
  • Per workout~20 min
  • EquipmentJump Rope

You train at home with no machines, have a jump rope, and want intervals that make up most of your exercise for now.

With no lifting elsewhere in the week, three sessions give you enough total work, and burpees and mountain climbers carry some strength stimulus too. One circuit of three moves, five rounds: 15 intervals and about 20 minutes per session.

Home circuit
ExerciseSets × repsRIRRest
A1 Jump RopeSeconds of skipping. 5 × 40–60 2 30 s
A2 Burpee 5 × 6–10 2 30 s
A3 Mountain ClimberSeconds of work. 5 × 20–30 1 90 s
How to run it
Do it Monday, Wednesday and Friday, or any three days with a day between. Go round the three moves as a circuit, resting 30 seconds between moves and 90 seconds after each round. Walk on two of the other days.
How to progress
First add reps to the burpees and mountain climbers within the range. When all five rounds reach the top, add a sixth round. After that, cut the rest between moves from 30 to 20 seconds.
Open in the session builder

Session 3

A lot of weight to lose, joints first

Open in the session builder
  • Workouts3× a week
  • Working sets26 a week
  • Per workout~20 min
  • EquipmentExercise Bike, Treadmill, Sled

You have a lot of weight to lose and jumping or running hurts your knees, hips or back, but you want to work hard.

Intervals do not need impact to be hard: a bike, a steep treadmill and a sled all let you reach a high effort with your feet never leaving the floor or pedals. Longer work and full recovery keep it doable. The bike day has 8 intervals and the walk-and-push day 9, each about 25 minutes.

Bike intervals
ExerciseSets × repsRIRRest
Stationary BikeSeconds hard. Pedal easy between. 8 × 30–45 2 90 s

Open Bike intervals in the session builder

Incline walk and sled
ExerciseSets × repsRIRRest
Treadmill WalkSeconds at a steep incline. Flat and slow between. 5 × 45–60 2 90 s
Sled PushSeconds per push. 4 × 15–25 2 2 min

Open Incline walk and sled in the session builder

How to run it
Alternate the two days three times a week, for example bike Monday, walk-and-push Wednesday, bike Friday. Start each with 5 minutes easy. If your gym has no sled, do 4 more incline walk intervals instead.
How to progress
On the bike, raise the resistance one level when all 8 intervals feel the same at the target effort. On the treadmill, add 1 percent incline every week up to 15. On the sled, add 10 to 20 pounds when every push stays steady.
Open in the session builder

Make it fit you

Questions

Can HIIT reduce weight?

Yes, when it adds to a calorie deficit. HIIT burns a lot in a short session and keeps your heart and lungs fit, but the scale only moves when you eat less than you burn over weeks. Pair it with strength training so more of the weight lost is fat.

How many times a week should I do HIIT to lose weight?

Two or three sessions of 15 to 25 minutes, on days apart. More than that tends to leave you too tired to push hard, and walking on the other days adds more calories with less fatigue.

How do you burn 1,000 calories a day?

Through exercise alone it takes a couple of hours of hard work, which few people can repeat daily. A more workable route is daily walking, two or three short interval sessions a week, strength training and a modest cut in what you eat.

Is it safe to do cardio every day?

Easy cardio like walking or cycling is fine every day. Hard intervals are not: keep HIIT to two or three days a week with at least one easier day between, so each session is actually hard.

Is HIIT better than steady cardio for weight loss?

It burns more per minute, so it suits a short schedule. Over weeks, both lose about the same fat when total calories match. Use whichever you will keep doing, and many people do best with both.