Wearables and Recovery Tracking: Helpful or Overhyped?
It seems like everyone is tracking something these days.
Sleep scores.
Heart rate variability.
Resting heart rate.
Recovery scores.
Strain scores.
Stress scores.
If you've spent any time around health and fitness recently, you've probably seen devices like WHOOP, Oura Ring, Garmin, Apple Watch, or one of the many other wearables on the market.
As a physical therapist, I get asked about these devices all the time.
"Should I buy one?"
"Are they accurate?"
"Do they actually improve recovery?"
The answer is yes... and no.
I think wearables can be incredibly useful.
I also think they can create unnecessary anxiety if people don't understand what they're actually measuring.
Like most tools, they're only as valuable as the way they're used.
Why have wearables become so popular?
For the first time in history, we have access to physiological information that used to require specialized medical equipment.
Your watch can estimate:
Heart rate
Sleep duration
Heart rate variability (HRV)
Training load
Daily activity levels
Recovery metrics
That's pretty impressive.
The appeal is obvious.
People want objective data.
They want to know if they're recovering.
They want to know if they're training too hard.
They want to know if they're making progress.
And in many cases, these devices provide useful information.
What does the research say?
Research on wearables continues to grow rapidly.
Studies published in journals such as Sports Medicine and The Journal of Strength and Conditioning Research have found that many modern wearables are reasonably accurate for tracking heart rate, activity levels, and sleep duration.
The keyword there is reasonably.
Some metrics are more reliable than others.
Heart rate tends to be fairly accurate.
Step counts are usually pretty good.
Sleep duration is often decent.
Recovery scores and readiness scores become a little more complicated.
Those numbers are based on algorithms rather than direct measurements.
That doesn't make them useless.
It just means they should be interpreted with some caution.
Let's talk about HRV
Heart rate variability has become one of the most popular recovery metrics.
Without getting overly technical, HRV reflects the variation in time between heartbeats and is often used as an indicator of recovery and nervous system readiness.
Generally speaking:
Higher HRV tends to be associated with better recovery.
Lower HRV may suggest fatigue, stress, illness, poor sleep, or insufficient recovery.
The research supporting HRV is actually fairly strong.
The challenge is that many people become overly focused on day-to-day fluctuations.
Your HRV can change for dozens of reasons.
One bad night's sleep.
Travel.
Alcohol.
Stress at work.
A tough workout.
Looking at long-term trends is usually much more valuable than obsessing over daily numbers.
Can wearables improve recovery?
This is where things get interesting.
The wearable itself doesn't improve recovery.
Your decisions improve recovery.
The device simply provides information.
If your wearable helps you:
Prioritize sleep
Manage training volume
Recognize fatigue
Improve consistency
Then it can absolutely improve outcomes.
If you ignore the data, it doesn't do much.
It's similar to owning a scale.
The scale itself doesn't create weight loss.
The actions you take based on the information do.
The downside of wearables
Believe it or not, I've seen people become less healthy because of their wearable.
Not physically.
Mentally.
Some individuals become obsessed with the numbers.
They wake up feeling great but decide they're tired because their recovery score says 62 instead of 82.
They skip workouts because their watch told them they weren't recovered.
They become dependent on the device instead of learning how to listen to their own body.
That's where wearables can become counterproductive.
The data should inform decisions.
It shouldn't control them.
How I view wearables as a physical therapist
Overall, I'm a fan.
I think wearables can provide valuable insights, particularly for athletes and highly active individuals.
But I also think they're often given too much power.
If someone sleeps eight hours, eats well, feels energized, and is performing well, I'm probably not going to change my entire plan because their readiness score dropped a few points.
Data is helpful.
Context is more important.
That's true in physical therapy, athletics, and life.
The things I care about most
If I had to choose the most valuable metrics, I'd focus on:
Sleep consistency
Resting heart rate
Long-term HRV trends
Daily activity levels
Those metrics tend to provide useful information without encouraging unnecessary overanalysis.
More importantly, they're actionable.
If your sleep is poor, improve sleep.
If your resting heart rate is elevated, evaluate stress and recovery.
If your activity level has plummeted, move more.
The best metrics are the ones that lead to better habits.
The bottom line
Wearables are neither magic nor meaningless.
They're tools.
And when used appropriately, they can provide valuable information about recovery, training, and overall health.
At Modern Movement Physical Therapy in Scottsdale, I encourage patients to use data as one piece of the puzzle—not the entire puzzle.
Because while technology can provide incredible insights, your body is still the most important source of information.
Learn to listen to both.
Take good care of your body, it's the only one you have.
Yours in health,
Dr. Michael Price