How to Ruck 7 Miles With 55 Pounds and Stay in Your Target Heart Rate Zones

Brett Matsuura

Published on: 28/04/2026

Learn to ruck 7 miles with 55 lbs while training in heart rate zones. A Marine vet, 50+, breaks down what actually builds fitness under load.

Semper Ruck Culture

Rucking Saved My Knees at 50: How Smart Loaded Training Rebuilt What Running Damaged

Brett Matsuura

Published on: 10/04/2026

Rucking saved my knees at 50 when running couldn't. Marine vet Brett explains the science and training approach that rebuilt joint health through smart loaded movement.

Semper Ruck Culture