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If you had to choose just five movements to build a foundation of strength, coordination, and conditioning what would they be?

In this RB100 Challenge, we put that to the test with a 100-rep hybrid strength circuit built from five full-body movements, performed for 20 reps each. Itโ€™s part powerlifting, part functional training, and part willpower.

This circuit rewards efficiency, punishes sloppiness, and builds resilience through movement diversity. Itโ€™s strength. Itโ€™s sweat. Itโ€™s RB100.

โ€œThe hybrid athlete isnโ€™t just strong or fit theyโ€™re both. And this challenge proves it.โ€ โ€”ย RB100.Fitness


The Challenge Format

  • Goal:ย Complete all 100 reps
  • Structure:ย 5 movements ร— 20 reps
  • Suggested Movements:
    1. Barbell Deadliftsย (moderate weight)
    2. Push-Upsย (strict or hand-release)
    3. Kettlebell Swingsย (Russian or full)
    4. Goblet Squatsย (DB or KB)
    5. Med Ball Slamsย (or Dumbbell Snatches if no slam ball)

Rules:

  • Complete all 20 reps of one movement before moving on
  • Rest as needed between movements but keep moving
  • Maintain form under fatigue
  • No time cap, but record time for repeatability

Log movement selection, weights, and time in theย RB100 Tracker.

Kettlebell swing mid-rep with barbell and dumbbell in background, gym chalk visible
Kettlebell swing mid-rep with barbell and dumbbell in background, gym chalk visible

Why It Works

This circuit covers:

  • Pulling strength:ย Deadlift
  • Pushing control:ย Push-up
  • Hip explosiveness:ย Swing
  • Squat mechanics:ย Goblet squat
  • Dynamic power & release:ย Slam

The result? A balanced blend of:

  • Muscular tension
  • Joint-friendly volume
  • Movement variability
  • Work capacity under fatigue

Research supports hybrid protocols like this for improving muscle strength and aerobic endurance simultaneously, especially in general population and tactical athletes [NSCA Journal, 2022].


Scaling Options

  • Beginner:ย 10 reps per movement (50 total)
  • Intermediate:ย 5 ร— 4 rounds (circuit style)
  • Advanced:ย Unbroken 100-rep test for time
  • Sub push-ups for incline or knee variations
  • Sub slam ball for dumbbell ground-to-overhead

Recovery Protocol

Youโ€™ll feel it everywhere but especially in:

  • Glutes and hamstrings
  • Core and shoulders
  • Forearms and grip

Finish with:


Related Challenges

Pair or rotate with:


Learn More

Athlete in transition from burpee to pull-up, showing breath and intensity under circuit fatigue
Athlete in transition from burpee to pull-up, showing breath and intensity under circuit fatigue
Editorial Team

The Relentless Bravery Editorial Team brings together athletes, coaches, and experts to share trusted insights on training, recovery, and mindset. Always consult a professional before making fitness or health changes.

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