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

Zone 2 Recovery Rucking: The Low-Impact Secret to Long-Term Fitness Over 40

Brett Matsuura

Published on: 20/04/2026

Zone 2 recovery rucking is the most underused tool for sustainable fitness over 40. Marine vet Brett explains the science and exactly how to do it right.

Semper Ruck Culture