Know Your Physio Case Study: Derek R.

“Today I woke up with my highest HRV for the second time since I started tracking a year and a half ago, which is pretty amazing. I woke up with a 60.”

Derek did not have a discipline problem. He had been tracking his own wearable data for roughly a year and a half, watching his HRV, his strain, and his sleep every single day. What he did not have was a system that turned all of that tracking into steady, visible progress. The numbers were there. The direction was not.

What changed was data-driven health coaching: monthly check-ins where Andrés reviewed Derek’s DEXA scan, his wearable trends, and his lab markers alongside him, then set the next month’s direction in specific, measurable terms. Instead of guessing whether a habit was working, Derek could watch it land in his own data. Over the engagement he did not simply lose weight. He turned a year and a half of tracking into a feedback loop that finally moved in the right direction, month over month.

Starting Point: The Baseline

A committed tracker who needed his daily numbers to start moving in the right direction.

For a long time the effort was already there, but the payoff was not obvious. Derek was doing the work and logging the numbers, yet without a coach to translate them, the data sat still. The turn came when those daily readings became something he and Andrés could actually steer. When the trend finally broke his way, Derek’s reaction said it best:

“Pretty amazing.”

Body Transformation

Roughly fifteen pounds down since November, holding steady at a consistent 207

The change on the scale was the clearest story. A DEXA scan had put Derek at about 214 pounds of total mass, and by his own report he came down to a consistent 207, roughly 15 pounds below where he had started back in November. The number did not bounce around the way it used to. “I’m down to pretty much, like, 207 pounds,” he reported, adding that he had been “fluctuating even less than this” and that 207 had become his reliable, settled figure.

What mattered as much as the number was how it came off. The target was never a crash. Andrés set the pace at about a pound a week, slow enough to protect recovery and muscle, steady enough that the weight came off and then stayed off. For someone who had spent eighteen months watching his own data without seeing it move, a number that finally dropped and held was the proof he had been waiting for.

Recovery & Resilience Markers

Two of the wearable readings Derek tracks daily reached personal records during the engagement.

If the scale told the obvious story, the recovery data told the more interesting one. Heart rate variability, the beat-to-beat variation that reflects how well the nervous system handles stress, is one of the most honest signals of whole-body resilience. One morning during the engagement, Derek woke up to a reading of 60, his highest in a year and a half of tracking, a mark he had reached only for the second time ever. Because he tracks every day, a record like that is not a fluke. It is a signal.

His training data pointed the same direction. Derek’s monthly strain average climbed to about 12.4, a record-high average for the month, meaning he was training harder while his recovery still kept up. Andrés called it one of the best stretches Derek had put together with the program, phenomenal all around. The pattern was unmistakable: more work going in, and the body absorbing it rather than breaking down under it.

“My goal is to keep working it, hopefully seeing continued upward trending improvement.”

Sleep & Recovery

The quieter foundation underneath the numbers Derek can graph

Sleep was where a lot of these gains were quietly earned. It is harder to graph than body weight, but reviewing Derek’s overnight data Andrés did not hedge. He told Derek plainly that his sleep was looking amazing, truly amazing. Asked how he felt day to day, Derek answered just as plainly that he felt strong. The validation was not only internal, either. Derek mentioned that a friend named Matt had run into him and remarked that he had never seen Derek look so good, and that whatever he was doing, he was doing it right. The data and the mirror had finally started telling the same story.

Foundations of Success

A repeatable system built on daily data, expert review, and patient pacing.

Daily Wearable Data

Derek already tracked HRV, strain, and sleep every day. The coaching gave those numbers a purpose, turning a year and a half of habit into a feedback loop that actually moved.

Monthly Expert Review

In recurring check-ins, Andrés reviewed Derek's DEXA scan, wearable trends, and lab markers together with him, then set the next month's direction in specific, measurable terms.

Patient Pacing

Rather than a crash, the target was about a pound a week. Slow enough to protect recovery and muscle, steady enough that the weight came off and stayed off month over month.

Objective Reinforcement

Watching weight fall and HRV reach personal records removed the guesswork. Each record became its own motivation to keep the system running.

Derek’s story is not a six-week sprint. It is a system he can keep running, a loop where the daily data coaches him as much as the coach does, and where each record gives him a reason to hold the line. He is still building, still chasing the next month of upward-trending numbers from an already strong base. But the throughline is simple. The tracking was never the hard part for Derek. Turning that tracking into direction, and watching it pay off month after month, is what made it stick.

That is the promise of data-driven health coaching: you stop guessing, and you start running a system built around your own physiology. Book a call with the Know Your Physio team to see what your data says about you.