Get back on the floor: mobility and flexibility as you age
Kelly Starrett, Vonda Wright, Ido Portal and Huberman's stretching episode all prescribe regular floor sitting, squatting and short static stretches to preserve range of motion. Mobility keeps independence and reduces injuries in later decades.
Range of motion is lost through disuse and kept through use, and the fix is less about heroic workouts than about daily, gentle exposure to the positions modern life has taken away. Four sources agree on that, and on the payoff: fewer falls, less pain, fewer injuries under load, and the ability to keep doing what you want with your body for decades.
Physical therapist Kelly Starrett says the body adapts to the narrow set of positions we use: sit, stand, walk slowly. Asked what has changed in 10,000 years, he answers, "We're off the ground". His simplest prescription is to sit on the floor for 20 to 30 minutes each evening, cross-legged or in other positions, shifting whenever you like while you watch TV. Getting up and down counts too. He says range of motion does not have to decline with age, and that at no age do you stop adapting. His goals are modest: basic, textbook range, not contortion. He also wants hip extension protected and loaded, with some sprinting and jumping kept in your life.
Movement teacher Ido Portal prescribes the squat challenge: "accumulate 30 minutes a day in the squat position unloaded", spread through the day. The deep squat is a human resting position that chairs replaced. He notes that hips differ and that some people must build up gradually.
Orthopedic surgeon Vonda Wright supplies the frame. In her view people do not get frail because they age; they age because they get frail. Flexibility is the first letter of her FACE framework, alongside aerobics, carrying a load, and equilibrium and foot speed. She says it is never too late to start.
Andrew Huberman supplies the numbers. Flexibility declines roughly 10 percent every 10 years from about age 20. Static stretching beats dynamic and ballistic stretching for long-term range. Holding for about 30 seconds works, and longer holds added nothing in one study. What matters most is at least five minutes per muscle group per week, on five or more days. Gentle stretching, at 30 to 40 percent of the point of pain, improved range more than stretching at 80 percent.
They agree that daily low doses beat occasional big sessions, that you do not need to force it, and that mobility belongs with strength, speed and balance. They disagree on discomfort. Portal treats discomfort as a sign you are in the right place and accepts small injuries as part of learning. Huberman warns that pushing to extremes causes injuries. Starrett sits between them: expect some soreness, but stay able to breathe.
What to do with it: spend 20 to 30 minutes on the floor each evening. Build up squat time in short bouts. Practice getting up and down without your hands. Add short, gentle static stretches five or more days a week, after warming up or after training. Pair mobility with lifting, walking, sprint intervals and balance work. If you have joint pain, arthritis, a recent surgery or a history of falls, ask a physician or physical therapist before starting deep squats or new stretches.