Updated June 2026 • WeightLossDiets.co.za
If your current workout routine consists of doing one exercise, resting for two minutes, scrolling through your phone, and then maybe doing another exercise — circuit training is about to change your life.
Circuit training chains exercises back-to-back with short (or no) rests, turning a 30-minute session into something that simultaneously builds muscle, torches kilojoules, and challenges your cardiovascular system. It's the workout format that underpins everything from CrossFit to 30-minute bootcamp classes to those army-style drills you see in the park on Saturday mornings.
Best of all: you can do it anywhere. Your lounge, your garden, your building's parking structure during Stage 6 load-shedding. No gym membership required.
Most exercise formats make you choose: cardio for heart health and calorie burn, or weights for muscle and metabolism. Circuit training refuses to choose. By moving between exercises with minimal rest, it keeps your heart rate in an elevated fat-burning zone while the resistance work stimulates muscle growth.
The result is a double attack on body fat:
Data for a 75 kg adult, 60 minutes of sustained effort.
| Activity | kJ/hour (approx.) | Muscle Building? | Equipment Needed |
|---|---|---|---|
| High-intensity circuit training | 1,800–2,200 | Yes | Optional |
| Kettlebell circuit | 1,700–2,100 | Yes | Kettlebell |
| Running (10 km/h) | 1,600–2,000 | Minimal | Running shoes |
| HIIT (sprints) | 1,500–2,000 | Minimal | None/treadmill |
| Moderate circuit training | 1,400–1,800 | Yes | Optional |
| Cycling (vigorous) | 1,400–1,800 | Minimal | Bicycle |
| Swimming (laps) | 1,200–1,600 | Moderate | Pool |
| Weight training (traditional) | 800–1,200 | Yes | Weights |
| Walking (brisk) | 700–1,000 | Minimal | None |
Source: Compendium of Physical Activities (Ainsworth et al.); adapted for kilojoule values.
Exercises use only your own body weight — push-ups, squats, lunges, burpees, jumping jacks, mountain climbers. Zero equipment, zero cost, works in any space. The go-to format when starting out or during load-shedding.
Rest periods: 60–90 sec between exercises | Session length: 20–30 min | Equipment cost: R0
Adds resistance to bodyweight movements or introduces dedicated weight exercises (swings, presses, rows). The extra load forces more muscle recruitment, elevating both kJ burn and the afterburn effect significantly.
Rest periods: 30–60 sec between exercises | Session length: 25–40 min | Equipment cost: R350–R1,200
Uses heavier compound movements (squats, deadlifts, bench press, pull-ups) performed in circuit format with short rests. Maximum muscle stimulus paired with elevated heart rate. Typically done at a gym.
Rest periods: 45–90 sec between exercises | Session length: 35–50 min | Equipment: Gym required
Alternates between cardio bursts (jumping jacks, skipping, box jumps) and strength exercises (push-ups, rows, squats). Keeps heart rate constantly elevated while hitting different muscle groups. Popular in bootcamp-style classes.
Rest periods: 20–45 sec between exercises | Session length: 25–35 min | Equipment cost: R0–R500
Strict 20 seconds on, 10 seconds off, 8 rounds per exercise = 4 minutes per station. Brutally efficient. Research shows Tabata-style intervals can burn more kJ in 4 minutes than 30 minutes of steady-state cardio. Not recommended if brand new to exercise.
Rest periods: 10 sec within rounds; 1 min between stations | Session length: 16–24 min | Equipment cost: R0+
Complete all 6 exercises back-to-back. Rest 90 seconds after completing the circuit. Repeat 3 rounds.
| # | Exercise | Work Time / Reps | Rest | Form Cue |
|---|---|---|---|---|
| 1 | Bodyweight Squats | 40 seconds | 20 sec | Chest up, knees track over toes, hips below parallel |
| 2 | Push-Ups (knee or full) | 40 seconds | 20 sec | Body in a straight line; don't let hips sag |
| 3 | Reverse Lunges | 40 seconds | 20 sec | Step back, lower rear knee to 2 cm off floor, push through front heel |
| 4 | Mountain Climbers | 40 seconds | 20 sec | Hips stay level; drive knees toward chest alternately |
| 5 | Glute Bridges | 40 seconds | 20 sec | Drive hips up by squeezing glutes; hold 1 sec at top |
| 6 | Jumping Jacks (or Step Jacks) | 40 seconds | 20 sec | Land softly; step version reduces impact for bad knees |
Total: ~18 min for 3 rounds including inter-circuit rest. Suitable for absolute beginners.
Complete all 8 exercises. Rest 45 seconds after the circuit. Repeat 4 rounds. Use a single dumbbell or kettlebell (women: 6–12 kg; men: 12–20 kg).
| # | Exercise | Reps / Time | Rest | Muscle Focus |
|---|---|---|---|---|
| 1 | Goblet Squat | 12 reps | 15 sec | Quads, glutes, core |
| 2 | Push-Ups (weighted option: backpack) | 12 reps | 15 sec | Chest, triceps, shoulders |
| 3 | Single-Arm Dumbbell Row | 10 reps each side | 15 sec | Back, biceps |
| 4 | Dumbbell Romanian Deadlift | 12 reps | 15 sec | Hamstrings, glutes, lower back |
| 5 | Burpees | 10 reps | 15 sec | Full body — maximum kJ burn |
| 6 | Dumbbell Shoulder Press | 12 reps | 15 sec | Shoulders, triceps |
| 7 | Reverse Lunges (with dumbbells) | 10 reps each leg | 15 sec | Glutes, quads, balance |
| 8 | Plank Hold | 45 seconds | 15 sec | Core, shoulders, full-body stability |
Total: ~32 min for 4 rounds. Burns approximately 700–900 kJ. Best for people with 4–8 weeks training base.
Alternates cardio bursts with strength movements. No rest between exercises within a circuit. Rest 60 seconds between circuits. Complete 5 rounds.
| # | Exercise | Time | Notes |
|---|---|---|---|
| 1 | Box Jumps (or Step-Ups fast) | 30 sec | Explode up; step down carefully |
| 2 | Weighted Push-Up to Row | 30 sec | Push-up then row each dumbbell alternately |
| 3 | Kettlebell Swings | 30 sec | Hip hinge power; arms passive |
| 4 | Jump Squats | 30 sec | Land soft; quarter-squat landing absorbs impact |
| 5 | Devil's Press (burpee + dumbbell snatch) | 30 sec | Lower dumbbells to floor, burpee, then snatch overhead |
| 6 | Battle Rope Slams (or Towel Slams) | 30 sec | Towel on floor: slam it down explosively both hands |
| 7 | Hollow Body Hold | 30 sec | Lower back pressed to floor; legs 15 cm up |
| 8 | High Knees Sprint on the Spot | 30 sec | Drive knees above hip height; pump arms |
Total: ~35 min for 5 rounds. Burns approximately 900–1,100 kJ. For those with 3+ months consistent training.
3 sessions: Mon / Wed / Fri
Workout A only
3 rounds × 6 exercises
Work: 30 sec | Rest: 90 sec between exercises
Rest 2 min between circuits
Focus: learn movement patterns, build consistency
3 sessions: Mon / Wed / Fri
Workout A
4 rounds × 6 exercises
Work: 40 sec | Rest: 60 sec between exercises
Rest 90 sec between circuits
Focus: increase volume, reduce rest
3 sessions: Mon / Wed / Fri (or Tue / Thu / Sat)
Workout B (light weights)
3 rounds × 8 exercises
Work: 12 reps | Rest: 30 sec between exercises
Rest 60 sec between circuits
Focus: add resistance, maintain form
4 sessions: Mon / Tue / Thu / Sat
Workout B × 2 sessions
Workout A (upgraded: add jumps) × 2 sessions
Rest: 45 sec between exercises
Focus: increase frequency, begin real fat loss
| Factor | Home Circuit | Gym Circuit |
|---|---|---|
| Cost | R0–R1,500 once-off equipment | R299–R699/month membership |
| Convenience | Train anytime, no travel | Travel required; may have queues |
| Load-shedding | No impact (no electricity needed) | Many gyms have generators |
| Exercise variety | Limited by equipment | Full range of machines and weights |
| Coaching | YouTube / apps only | PTs and group classes available |
| Accountability | Self-motivated | Group energy helps |
| Best for | Budget-conscious; parents at home; shift workers | Social exercisers; those who need variety |
| Gym | Monthly Cost | Circuit Class? | Locations |
|---|---|---|---|
| Virgin Active | R499–R899/month | Yes — BodyPump, Circuit, HIIT | National |
| Planet Fitness | R299–R499/month | Yes — 30-min circuit zones | National |
| Curves (women-only) | R399–R549/month | Yes — 30-min hydraulic circuit | National |
| CrossFit affiliates | R700–R1,400/month | Yes — WOD-based circuit format | Major cities |
| F45 Training | R800–R1,200/month | Yes — team-based functional circuits | Major cities |
| Independent Bootcamp classes | R100–R250 per class | Yes — outdoor circuit format | Parks, community spaces |
| Equipment | Why It's Useful | ZAR Price Range | Where to Buy |
|---|---|---|---|
| Adjustable dumbbells (pair) | Versatile; replaces full dumbbell rack | R600–R2,500 | Makro, Sportsmans Warehouse, Takealot |
| Fixed dumbbells (2×8 kg) | Simple, durable, affordable entry | R250–R500 | Game, Makro, Pick n Pay Sport |
| Kettlebell (single) | Swings + circuits — the ultimate single-tool | R350–R900 | Sportsmans Warehouse, Takealot, Makro |
| Resistance bands (set) | Lightweight, travel-friendly, joint-friendly | R150–R400 | Faithful to Nature, Takealot, Dischem |
| Skipping rope | Cardio bursts between strength exercises | R80–R300 | Game, Checkers, Sportsmans Warehouse |
| Exercise mat | Floor exercises, comfort, hygiene | R150–R500 | Makro, Checkers, Mr Price Sport |
Starter home circuit kit recommendation: A pair of 8 kg dumbbells (or a 12–16 kg kettlebell) + a skipping rope + an exercise mat = R450–R900 total. That's all you need for 12+ months of effective circuit training.
Exercise accounts for roughly 30% of the fat-loss equation. What you eat determines the other 70%. The good news is that a moderate calorie deficit — around 2,000–2,500 kJ/day less than your maintenance intake — combined with 3 circuit sessions per week will produce 0.5–1 kg of fat loss per week for most people.
A 75 kg person burns approximately 1,600–2,200 kJ per hour during moderate-to-high-intensity circuit training. A 30-minute session typically burns 700–1,000 kJ during the workout, plus additional kilojoules from the afterburn effect over the next 24 hours.
Yes — start with Workout A (bodyweight only), use longer rest periods, and focus on learning the movements correctly before increasing intensity. Most beginners see significant improvement in fitness and body composition within 3–4 weeks of consistent training.
Three sessions per week with at least one rest day between each is ideal for most people. This provides enough training stimulus for fat loss while allowing adequate muscle recovery.
Nothing, if you start with bodyweight circuits. Adding dumbbells (R250–R500 at Makro or Game) or a kettlebell (R350–R900 at Sportsmans Warehouse or Takealot) significantly expands your options and increases the fat-burning stimulus.
They burn similar kilojoules per hour, but circuit training builds muscle simultaneously — which raises your resting metabolism long-term. For body composition change, circuit training typically produces faster visible results than running alone.
Effective sessions take 20–45 minutes. Beginner sessions (Workout A) take about 18–22 minutes. Intermediate sessions (Workout B) take 30–35 minutes. The beauty of circuit training is that shorter sessions can still be highly effective — quality beats quantity.
Disclaimer: This article is for informational purposes only and does not constitute medical advice. Consult your doctor or a registered biokineticist before starting a new exercise programme, especially if you have existing health conditions. WeightLossDiets.co.za always recommends professional guidance for individual health decisions.