Quickfire Cluster Training Workouts To Build Muscle Fast

Quickfire muscle
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Cluster training calls for lower reps and fast switching between exercises, which allows you to compress more reps into less time to get a better training effect. This boosts the muscle-building effect of the moves while burning plenty of calories. These workouts combine cluster training with normal sets to increase the workload during each session without adding any time.

The cluster sets in this workout use paired exercises that work opposing muscle groups. This gives one group a rest while the other is lifting weights, allowing you to pump out reps constantly for ten minutes. You will fully exhaust the muscle fibres in less time, producing a better muscle-building effect. It also boosts your metabolism so you use energy at a faster rate for hours after your workout.

  • Do workouts A, B and C once a week each.
  • Do the last two exercises in the workout as a cluster. Using a weight you can do 10 reps with, do five and then go on to the next exercise with no rest. Repeat the first move. Keep alternating for ten minutes.
  • Rest for 60 seconds between sets and three minutes between each exercise.
  • Leave at least a day between workouts.

Quick tips

  • Warm up with 10 minutes of cardio followed by some dynamic stretching.
  • Do a couple of practice sets for the cluster exercises to ensure your form is correct.
  • The cluster sets need to be fast and furious.
  • For an express workout, turn the final four exercises in each workout into two cluster sets.
  • Warm down with five to ten minutes of gentle cardio and some static stretching. Try this stretching routine.

Workout A

1 Single-leg good morning

Sets 3  Reps 8 each side  

Target: lower back, core 

Keep one foot slightly off the floor and slowly bend over at the hips.

2 Dumbbell pull-over

Sets 3  Reps 8  

Target: chest, triceps, core 

Use your pecs to pull your arms back over your head and don’t arch your back.

3 Reverse grip bent-over row

Sets 3  Reps 8  

Target: lats, traps, core 

Hold the bar with palms facing outwards and pause at the top of the move.

4 Dumbbell flye

Sets 3  Reps 8  

Target: chest, core 

Hold the bar with palms facing outwards and pause at the top of the move.

5 Wide-grip cable row

Clusters 1 Reps 5  

Target: rear shoulders, upper back 

Keep your shoulder blades drawn back and use a wide bar.

6 Alternating dumbbell bench press

ClustersReps 5 each side  

Target: chest, triceps

Drive the weights straight up and lower slowly.

Workout B

1 Overhead squat

Sets 3  Reps 8  

Target: quads, glutes, hamstrings, core 

Keep your lower back in its natural arch.

2 Cuban press

Sets 3 Reps 8 each side  

Target: rotator cuffs, core 

Keep your upper arms level with the floor when rotating your lower arms up.

3 EZ-bar curl

Sets 3 Reps 8  

Target: biceps 

Avoid leaning back as you lift and keep your core tight.

4 Seated EZ-bar overhead triceps extension

Sets 3 Reps 8  

Target: triceps, core 

Keep your upper arms still for the whole move.

5 Split squat

Clusters 3 Reps 5 each side 

Target: hamstrings, glutes, quads, core 

Start in the split stance and maintain perfect form.

6 Overhead press

Clusters 3 Reps

Target: shoulders, core

Press the bar straight overhead and don’t tilt your hips forwards.

Workout C

1 Lateral lunge

Sets 3 Reps 8 each side  

Target: inner thighs, glutes 

Keep your outside knee in line with your ankle.

2 Medicine ball reverse crunch

Sets 3 Reps 8  

Target: abs, core 

Curl your lower body and the ball towards your chest.

3 Snatch grip deadlift

Sets 3 Reps 8  

Target: hamstrings, glutes, upper back Use your lower body to power the move rather than your lower back.

4 Woodchop

Sets 3 Reps 8 each side  

Target: abs, core 

Keep your arms almost straight and use your core to power the rotation and lift.

5 Gym ball Russian twist

Clusters 1 Reps 5  

Target: abs, core 

Keep your lower back unstressed and twist to both sides to complete the rep.

6 Good morning

Clusters 1 Reps 5  

Target: lower back, hamstrings

Bend over at the hips and push them back to maintain balance.

Nick Hutchings worked for Men’s Fitness UK, which predated, and then shared a website with, Coach. Nick worked as digital editor from 2008 to 2011, head of content until 2014, and finally editor-in-chief until 2015.