Intro: There’s no hiding from the sled. It’s one of the most effective tools for building raw power, mental grit, and high-output conditioning.

In this RB100 challenge, your mission is to burn 100 calories using the sled push/pull. Whether you’re using a motorised assault sled, turf-based prowler, or weight sled + wearable tracker — you’ll earn every calorie.


How to Structure It

Depending on your setup:

  • Prowler on turf: track total distance (e.g. 20m lengths) and time
  • Motorised sled or assault sled: use built-in calorie tracker
  • Weight sled with heart rate monitor: estimate using tracker like MyZone or Whoop

Sample Format:

  • Push 20m → Pull back 20m = 1 set
  • Repeat until 100 calories burned or distance/time target achieved

Scaling Options

  • 10 x 10m push/pull with rest between
  • Alternate push/pull rounds with bodyweight exercises (e.g. push-ups or lunges)
  • Reduce load to maintain pace without sacrificing form

Why It Works

  • Total-body engagement: legs, hips, shoulders, core
  • No eccentric loading = reduced DOMS, faster recovery
  • Great for rehab, athletic performance, and fat loss
  • Builds high-output conditioning without impact

Tips for Success

  • Keep torso tight and posture forward during push
  • Use a strong rope or strap for pulls — avoid jerky motion
  • Set a calorie/time benchmark and try to beat it weekly

Pair it with:


External Resources:

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.

Open fitness journal with handwritten entry and pen — overlay text-100 Words a Day
#37: Journal 100 Words a Day About Your Progress

#37: Journal 100 Words a Day About Your Progress

Read More
Athlete mid-HYROX race, grit and focus on their face, pushing a sled across the floor surrounded by cheering crowd — captured under bright competition lighting with energy and intensity
How to Pace Every HYROX Station (and Avoid Blowing Up Mid-Race)

How to Pace Every HYROX Station (and Avoid Blowing Up Mid-Race)

Read More
Athlete mid-jump outdoors with rope blurred in motion, overlay text- 1000 Jump Rope Skips Challenge
#14: 100 Jump Rope Skips × 10 Rounds

#14: 100 Jump Rope Skips × 10 Rounds

Read More