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Summary
On episode 443 of 40+ Fitness, Coach Allan sits down with David E. Frost, an NFPT certified master fitness trainer, rowing coach, champion competitor, and award-winning adjunct professor who founded Well Past 40 after careers in the U.S. Navy and the business world, to promote wellness and longevity.
David talks through his book, Kaboomer: Thriving and Striving into Your 90s, and the “seven S's” model he built for a long, healthy life: strength, stamina, restorative sleep, stress, substance (nutrition), stretching, and stability.
The conversation gets practical, covering heart rate training zones for building stamina, why strength training matters for fighting sarcopenia and osteopenia, and why learning proper form has to come before adding weight.
Links
- https://wellpast40.com
- Episode 736 – Die harder and later with David Frost
Key Takeaways
- David's “seven S's” define a long, healthy life. Strength, stamina, restorative sleep, stress, substance, stretching, and stability make up what he calls a “physical 401k.” He argues these factors are interrelated: neglect one (like sleep or stress) and it drags down the others, including your ability to build strength or stamina.
- Strength training fights sarcopenia and osteopenia. Starting around age 30, people can lose nearly a percent of skeletal muscle a year, a condition called sarcopenia. Resistance training slows or offsets that loss and also helps bone density (osteopenia). David says he has never seen a study where resistance exercise was found unsafe for any condition, including cancer, MS, or diabetes.
- Most stamina training should happen in a conversational, low intensity zone. David recommends spending up to 80% of training time at about two thirds of max heart rate, a pace where you can still hold a full conversation. That zone builds capillaries and mitochondria for lasting endurance without excessive wear.
- There are three training intensity zones, and most time belongs in zone one. Zone one is conversational and should dominate; zone two (about 80 to 85% of max heart rate) feels good but can't be sustained long; zone three, the “red zone” at 90 to 95% of max heart rate, is for occasional, doctor approved sprint efforts only.
- Functional, multi muscle group exercises beat isolated machine work, especially past 40. David favors free weight, complex movements like lunges, twists, and overhead lifts done through multiple planes of motion, plus functional moves like the farmer's walk, to build the grip and carrying strength needed for daily life.
- A simple balance test is a real longevity marker. Standing on one foot with eyes closed for 20 seconds is the self test David points to as an indicator tied to longevity. He calls stability the “accident insurance” piece of his model, and says it starts with strength in the big toes.
- Form has to come before load. Both Allan and David stress learning a movement pattern correctly, Allan even rehearses lifts with an empty PVC pipe, before adding any weight. Pushing too fast, particularly after 40 or 60, is how people get hurt.
- A trainer or workout partner adds value beyond just safety. David points to accountability, better mind-body alignment that recruits more muscle during a lift, and the social motivation of having someone else in the process as reasons a trainer or workout buddy is worth it, at least while building the habit.
- David's three strategies to get and stay well: get started, say “yes and” instead of “yes but” so you find a workaround instead of an excuse, and treat wellness as a journey you earn over time rather than a quick fix.
“Humbly, being strong is not an apology.”
David Frost
