New Research Says Strength Isn’t the Best Predictor of How Well You Age. Kelly Starrett Explains What Is (and Why You Lose It First)

 Written by 

Julien Raby

 Last updated on 


Elite sport can leave bodies battered, but one of the world’s best-known movement experts says that fate is far from guaranteed.

In a recent YouTube interview, UFC legend Georges St-Pierre sat down with physical therapist Kelly Starrett, author of Becoming a Supple Leopard.

power-predicts-longevity-better-than-strength
  • Save

Starrett’s advice on pain, aging, and power could change how you train.

One tip for staying athletic past 40 comes from an old Soviet saying.

Here is everything worth stealing.

Pain Is a Check Engine Light, Not a Verdict

Starrett’s biggest message: stop fearing pain. Treat it as information.

Build Strength and Conditioning With One Simple Tool
FULL-BODY TRAINING

If you want something simple that actually works, this is one of the most effective tools I’ve used to build strength, conditioning, and endurance without needing a full gym setup.

  • Full-body training with one weight using swings, squats, and presses
  • Solid cast iron build that feels stable and lasts for years
  • Comfortable grip that makes high-rep workouts easier to handle

Pain is a request for change. It’s getting our attention. It’s like a check engine light.

His goal is to hand athletes self-care tools before they reach for pills or a clinic appointment. Professional help still matters when problems escalate.

It’s okay that you’re in pain, but here are all these tools that you can control without a physical therapist, without a doctor, without medicine.

Even surfing legend Laird Hamilton once set the record straight with a group of pro water polo players. “I’ve never been 100%,” he said, recalling 110 stitches before age ten.

Ignoring a swollen knee, Starrett warns, changes how you move and leaves tissue less able to handle load.

The Three Non-Negotiables

When desperate athletes call Starrett, he skips the exercises. His first questions concern basics.

We have to be even more sophisticated in making sure that sleep is non-negotiable, eating food is non-negotiable, taking time off and being with loved ones is non-negotiable.

  • Sleep first: lie in bed for eight hours, phone away, even if sleep refuses to come.
  • Caffeine curfew: Starrett suggests stopping around noon.
  • Over 40? Get a blood panel to check vitamin D, omegas, and overall tissue health.

You want to lose weight, sleep. You want to be sharper, sleep. You want to be more powerful, win a world championship, sleep.

Why Power Matters More Than Strength as You Age

Many people dial back intensity with age. Starrett says that instinct backfires.

He pointed to newer research suggesting power predicts function better than raw strength, though he named no specific study in the interview. Treat that as his interpretation until you see the data yourself.

Build Strength and Conditioning With One Simple Tool
FULL-BODY TRAINING

If you want something simple that actually works, this is one of the most effective tools I’ve used to build strength, conditioning, and endurance without needing a full gym setup.

  • Full-body training with one weight using swings, squats, and presses
  • Solid cast iron build that feels stable and lasts for years
  • Comfortable grip that makes high-rep workouts easier to handle

So it turns out moving quickly is the thing because if you stumble you need to be quick.

His warning comes with a Soviet proverb: “When you stop jumping, you start dying.”

People stop jumping. They stop being explosive. They stop moving quickly.

Starrett argues that power fades faster than strength. Biking and pickleball at comfortable speeds will not replace it.

Easy Ways to Add Springiness

  • Jump rope daily, which Starrett does himself.
  • Bounce on your toes while holding a sink, ideal for beginners.
  • Try a rebounder or small heel-lift bounces.
  • Swing kettlebells, which load hamstrings and back at speed.
  • Try drop curls: let go of a bar, then catch it.

St-Pierre asked whether his 72-year-old mother should try this. Starrett’s answer: start small, with gentle bounces on the balls of the feet.

Fixing Back Pain Starts With the Hips

Starrett rejects the idea that the spine is badly designed. Most people simply under-use it.

Is your spine doing spine things? Does it extend? Does it flex? Does it rotate?

Many back flare-ups strike during something trivial, like tying shoes. Starrett says the back is not necessarily damaged. The brain simply flags an unfamiliar position as unsafe.

  • Move the spine daily: cat-camel, hanging from a bar, yoga, Pilates, or rope flow.
  • Restore hip extension: getting the knee behind the body is a commonly missing skill.
  • Treat neck, shoulders, and upper back as one system, with pelvis, low back, and hips as another.

Stiff hips force the lumbar spine to pick up the slack. Starrett calls that a force leak.

Build Strength and Conditioning With One Simple Tool
FULL-BODY TRAINING

If you want something simple that actually works, this is one of the most effective tools I’ve used to build strength, conditioning, and endurance without needing a full gym setup.

  • Full-body training with one weight using swings, squats, and presses
  • Solid cast iron build that feels stable and lasts for years
  • Comfortable grip that makes high-rep workouts easier to handle

Shoulder Trouble in Combat Sports

Shoulders look complicated, yet Starrett simplifies them.

It does four things. It goes overhead, goes out in front, goes out to the side, it goes behind.

Lacking rotation forces the shoulder forward with every punch, putting the rotator cuff in a weak spot. His fixes cover three bases:

  • Restore range of motion before chasing strength.
  • Warm up upper body as seriously as lower body. A few arm circles will not cut it.
  • Recover afterward instead of sitting still.

Starrett reported no shoulder injuries on a water polo team he has supported for four years, crediting thorough prep while admitting some luck plays a part.

The 20-Minute Floor Habit

Asked for one daily change, Starrett did not pick cold plunges or red light. Sit on the floor.

You’re going to get up off the ground like an old man. But I guarantee you over time that will change your wattage, your power, your back will feel better, knees will feel better.

Any position works: cross-legged, kneeling, side-saddle. Twenty to thirty minutes each evening exposes tissues to end ranges that chairs never reach.

Starrett went further, claiming that in cultures where people sleep and toilet on the ground, fall risk and hip disease drop to zero. No study was cited, so read that as a bold observation rather than established fact.

Build Strength and Conditioning With One Simple Tool
FULL-BODY TRAINING

If you want something simple that actually works, this is one of the most effective tools I’ve used to build strength, conditioning, and endurance without needing a full gym setup.

  • Full-body training with one weight using swings, squats, and presses
  • Solid cast iron build that feels stable and lasts for years
  • Comfortable grip that makes high-rep workouts easier to handle

Play, Kids, and the Risks of Contact

Would St-Pierre let his children fight professionally? The answer came instantly.

Absolutely not. I don’t want them to have to deal with the stress that I deal and also the risk is so high. The odds of success is so low.

Starrett’s blueprint for young athletes leans on play over specialization. Think tag, wrestling, skateboarding, climbing, and track and field.

The brain learns through play. That is the fastest way.

St-Pierre agreed, saying he improved faster by staying playful while teammates battled ego. Starrett also backs delaying contact, such as flag football before tackle, and giving a concussed brain time to heal through sleep and good nutrition.

Plan for Retiring Twice

Starrett borrowed a line from volleyball star Gabby Reece.

You’re going to retire once from your job as an athlete and then you’re going to retire from your job after an athlete.

The goal is leaving sport “unharmed, not unscathed.” St-Pierre echoed the idea, saying health after fighting matters more to him than performance.

Warm-ups matter here too. Starrett uses them to ask, “Who am I today?” before deciding how hard to train.

Build Strength and Conditioning With One Simple Tool
FULL-BODY TRAINING

If you want something simple that actually works, this is one of the most effective tools I’ve used to build strength, conditioning, and endurance without needing a full gym setup.

  • Full-body training with one weight using swings, squats, and presses
  • Solid cast iron build that feels stable and lasts for years
  • Comfortable grip that makes high-rep workouts easier to handle

Best Sports for Longevity

Starrett favors activities with community and explosive movement, such as tennis or mountain biking.

It’s probably less about the sport and more important about your social interaction engagement.

His closing advice: find something you love and do it a lot.

Share via
Copy link