Backpacking Light Podcast Episode 135 | Field Notes - The Metabolic Cost of Bushwhacking
Oct 13, 2025
Explore the unique metabolic challenges of bushwhacking in this enlightening discussion. Discover how brush work, impedance work, and hazard work inflate the Metabolic Difficulty Ratio, impacting energy costs and travel time. Learn about innovative bushwhacking leggings that reduce drag and durable materials for packs designed for rugged terrain. Understand how off-trail miles differ from conventional trail miles and why those differences matter when planning your next adventure.
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The One-Mile That Feels Like Four
- Ryan describes the classic moment when a planned one-mile bushwhack takes far longer and feels much harder.
- This captures the discrepancy between map distance and actual metabolic cost off-trail.
Off-Trail Miles Are Metabolically Distinct
- Off-trail miles are a different metabolic challenge, not just harder hiking.
- Resistance, irregularity, and instability each add distinct energetic costs that inflate the MDR.
Choose Gear That Reduces Drag And Damage
- Use low-friction, abrasion-resistant clothing and durable packs when bushwhacking.
- Choose shelters and gear that let you camp anywhere to reduce site-search energy and risk.