Road Less Traveled · Engineering Healthspan
Patrick Dempsey · PE, MBA · Certificate in Nutrition Science, Stanford University
Spring 2026 · 8 min read · Biological Reserve Series, Pillar 3 of 4
| 📺 This article companions this week's video: The Musculoskeletal Reserve — Watch on YouTube → |
| Biological Reserve Series — All Four Pillars Pillar 1: Your Body Is Aging Faster Than It Needs To → Pillar 2: What Happens to Your Brain When You Ride Hard → ▶ Pillar 3: The Musculoskeletal Reserve (this article) Pillar 4: The Metabolic Reserve — coming next |
I showed an embarrassing photo in this week's video. It was taken a few years ago, right before jumping into a pool with my grandson. I was fifty-eight years old. Hundreds of miles a month on the bike and running. High cardiovascular capacity. Excellent VO2 max.
And almost no functional muscle on my body.
What I was missing — what most dedicated cyclists are quietly losing — is the specific kind of mechanical loading that keeps fast-twitch muscle fibers alive, maintains neuromuscular junction integrity, and drives the bone mineral density response that matters most when you're in your seventies and eighties. This article covers the science and gives you the system to close that gap.