Why Measure Training Stress?
In your 20s, you’re made out of rubber. Overuse injuries happen, but mostly in pretty extreme cases. In your 30s, you still probably bend, rarely break, and generally heal quickly.
In your 40s, the body starts to change, and those changes become more dramatic and pronounced in your late 40s. That’s when the proverbial shit hit the fan for me: massive distress in my right hip that I never saw coming; a stress fracture to my third metatarsal in my right foot, a 60% tear in my right achilles tendon that required surgery, and recently a stress reaction/fracture in my left femur.
Why? Why then? Why didn’t I see it coming? Why did I still think I could train like a much younger elite athlete?
And a much better question for the long term: How will I prevent this from happening in the future?
I finally figured this out the answer to that last question while I was nursing this latest injury: I needed a system that would enable me to measure stress in a meaningful way, within each sport and across sports, to do two really important things:
Optimize my training program to achieve my goals, and
Avoid overtraining by proactively planning both stress and recovery.
I haven’t found a system that does both, and I think I would have found one by now among what I’ve read about endurance sports training if anyone had ever thought to invent one.
The concept is really simple: Find a metric – some measurement – that can be used to measure the amount of stress that the body is subjected to over a specific standard distance, within a particular sport, that can also be used to measure and compare stress in each of the other two sports in triathlon.
And one key twist: this metric doesn’t have to be purely objective (like HR, or power output, or speed), but rather something that can be customized to a specific athlete that is based on both subjective and objective variables.
I’ve been using and refining my system for the past several weeks, and I’ve learned a lot about how to balance my training, make adjustments over time, and understand when, why, and more importantly how, to optimize my program. With my most recent running injury almost entirely behind me (give it a couple more weeks), I’ll be refining this system to include all three sports, and use that to figure out the best way forward.
Stay tuned…














