Norwegian 4x4 - Single Kettlebell v2

The ultimate Kettlebell Conditioning Protocol is BACK—and this time, it’s completely optimized. Around a year ago, I posted a video showing you how to turn the famous, science-backed Norwegian 4x4 protocol into a kettlebell workout. It was incredibly popular, but as a coach, I like refining my methods. Today, we are unlocking Version 2.0. This is a highly time-efficient, 30-minute workout designed so your cardiorespiratory system remains the limiting factor. In the original version, local muscular fatigue (especially in the shoulders) sometimes caused people's heart rates to drop because their muscles quit first. Version 2.0 uses smarter exercise pairing to keep your heart rate pinned exactly where it needs to be, using just a single kettlebell and a small square meter of floor space. If you want your fitness to skyrocket without pounding the pavements or staring at a blank wall on a treadmill, grab your bell and let’s build an engine. ⏱️ VIDEO TIMESTAMPS 0:00 - Elite Cardio Without the Treadmill 0:43 - The Science: What is the Norwegian 4x4 Protocol? 2:42 - Block 1: Power & Lung (4-Min AMRAP) 04:30 - Block 2: The Engine Ladder (Ascending 2-4-6-8...) 06:04 - Block 3: The Low-Impact Flow (4-Min AMRAP) 07:26 - Block 4: The Cardio-Killer Finish (Pyramid Wave) 08:36 - The Cheeky 5th Round Class Surprise! 🏋️ THE V2.0 PROTOCOL (Save This Workout) Protocol: 4 Blocks | 4 Mins Work | 3 Mins Rest. Aim for 85–95% HRmax (Zone 4/5). Block 1 (4-Min AMRAP): 5 Single-Arm High Pulls + 5 Clean & Push Presses + 5 Reverse Lunge Pass-Throughs. Complete all reps on one hand, then alternate hands. Block 2 (Ascending Ladder): Goblet Thrusters + KB Plank Pull-Throughs. Start at 2 reps of each, then 4, 6, 8, 10... adding 2 reps every round. Block 3 (4-Min AMRAP): 5 Single-Arm Swings + 5 Cleans to Rack + 5 Single-Arm Ballistic Rows (the hand transition happen on the row). Complete a full round on one side, then switch hands. Block 4 (Pyramid Style): Two-Handed KB Swings + Burpees Over Kettlebell. Wave up and down: 1, 2, 3, 4, 5, 6, then back down 5, 4, 3, 2, 1. If you finish, climb back up! 😈 THE CHEEKY 5TH ROUND SURPRISE Want the exact challenge I threw at my 45-minute live fitness class? After your final 3-minute rest, run through one final 4-minute time cap to see if you can complete this entire circuit just once through: Block 1: 5 reps of each move on the Left hand, then 5 reps on the Right hand. Block 2: 6 Goblet Thrusters + 6 KB Plank Pull-Throughs. Block 3: 5 reps of each move on the Left hand, then 5 reps on the Right hand. Block 4: 6 Two-Handed Swings + 6 Burpees Over Kettlebell. 🔗 CONNECT WITH ME Main Channel: @aarontreagus Adventure & Cycling Vlogs: @aarontreagusadventures Instagram (Fitness & Coaching): @aarontreaguspt Instagram (Personal): @treag87 💬 Drop a comment below: How far up the ladder did you get on Block 2, and did you survive the 5th round time cap? Don't forget to LIKE, SUBSCRIBE, and smash the notification bell for more data-tested fitness protocols! #KettlebellWorkout #VO2Max #Norwegian4x4 #KettlebellConditioning #FitnessProtocol #HIITWorkout