261 ‒ Training for The Centenarian Decathlon: zone 2, VO2 max, stability, and strength

KEYPOINTS

• 01

  Exercise is the highest-leverage longevity tool for most people

  Peter's view: if everything in your life is a 6 or 7 out of 10, raising exercise to a 10 does more for both length and quality of life than improving any other area. He says he would keep training even if it shortened his life by a year, purely for the quality of the years he has left. Severe problems like malnutrition still come first.

• 02

  Plan for the 'marginal decade' by training for specific late-life tasks

  The marginal decade is the last decade of life, and for most people it is a period of poor health and function. The Centenarian Decathlon is a list of about 10 physical tasks you want to be able to do then, picked from about 50 options: about half are daily activities and half are feats of fitness. Peter's wall chart targets his late 80s, not 100.

• 03

  Peter's own list is concrete and measurable

  His list includes picking up a 30 lb child from a squat or a crib, getting up off the floor with one point of support, lifting a 30 lb suitcase overhead and dead hanging for 30 seconds. It also includes a 1-minute farmer's carry with 25% of body weight in each hand, carrying 20 lb up four flights of stairs, pulling himself out of a pool onto a deck 12 inches above the water and drawing a 50 lb bow. Some items, such as a hex-bar deadlift of his body weight for five reps, are deliberately ambitious.

• 04

  Work backwards: today's targets must allow for the decline

  Strength and VO2 max drop predictably with age. To still have a VO2 max of 30–32 mL/kg/min in 30–40 years, Peter, whose VO2 max is in the low-to-mid 50s, has to work hard now. That makes the bar even higher for someone 20 years younger. His archery analogy: practise at 100 yards and 50 becomes easy.

• 05

  Benchmarks for strength and grip

  For a man in his 40s, the farmer's carry target is half his body weight in each hand for one minute (90 lb per hand for a 180 lb man). For a woman, it is about 75% of that. The dead-hang target is 2 minutes for men and 1.5 minutes for women in their 40s, minus about 10–15 seconds per decade. A 2-minute wall sit, thighs parallel and hands off, is another test. A VO2 max test costs about $100–150, and field tests can estimate it for free.

• 06

  Appendicular lean mass is a long-term record of training

  Appendicular lean mass index (ALMI) is limb lean mass (kg) divided by height squared, taken from a DEXA scan. Peter wants patients at or above the 75th percentile for age and sex. He likens it to hemoglobin A1c: just as A1c reflects average glucose over three months, ALMI and VO2 max reflect years of training. He admits the link to outcomes is associative but strong.

• 07

  Minimum effective dose: about three hours a week if starting from nothing

  Going from nothing to about 3 hours a week is an enormous improvement. A rough split: about 1 hour of steady zone 2, 1 hour of strength training, 20–30 minutes of VO2-max-style intervals across one or two sessions, and the remaining 30–40 minutes spent on stability in 10-minute daily chunks. Daily short stability work beats one long weekly session. Shift the balance based on weak spots, such as a strong lifter whose aerobic fitness is 'an atrocity'.

• 08

  Sports are great, but not a complete program

  Tennis, basketball and weekly weights put you ahead of most people. But sports involve repetitive, asymmetric stress, such as a golf swing, which builds movement problems and imbalances over decades. So add deliberate training to counteract them.

• 09

  Split cardio roughly 80/20 between zone 2 and VO2 max

  Both recreational athletes and elites follow about 80/20, and some elites run close to 90/10. Peter now does 4–5 hours of dedicated cardio a week, down from 14–20 hours in the past and not counting rucking. That includes four zone 2 sessions of 45–60 minutes. Following Iñigo San Millán's advice, sessions of at least 30–45 minutes are better spread across the week.

• 10

  Define zone 2 by lactate or effort, not heart-rate minutes

  Zone 2 is the point just before you can no longer speak comfortably while exercising, roughly where lactate starts to accumulate. Heart rate is 'generally the worst approximation'. Forty-five minutes of heart-rate zone 2 scattered across a 3-hour ride is not physiologically the same as a steady 45-minute block. Good options include a bike, rower (if your form holds), stair climber, or brisk walking for beginners.