Atomic Metrix Blog
Training, science, and the AI that ties them together.
- UpdateUpdate
Product update log is now live
Atomic Metrix now has a public update timeline so athletes can see what changed across product releases.
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Atomic Agent usage is clearer and more accurate
Monthly Atomic Agent usage now reflects real credit consumption instead of simple message counts.
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Heart-rate zones and activity reports got more trustworthy
Activity analysis now uses profile-based heart-rate zones and cleaner zone reporting.
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Workout editing and activity workflows became smoother
Training plans, workout canvas controls, and activity management received practical workflow upgrades.
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MCP setup and route planning became easier to connect
Atomic Metrix improved MCP discovery, OAuth registration, scopes, and route-planning tools for AI clients.
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Account safety, trainer controls, and fitness pages were tightened
This release focused on safer account flows, better trainer interactions, and fresher fitness data.
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Training-plan exports and connected-account flows expanded
Intervals.icu and Strava workflows gained stronger export, writeback, and authorization support.
Read the update - Science7 min read
W′bal Drop: the hidden cost of hard surges above FTP
A practical guide to W′ balance, anaerobic work capacity, and why short attacks can decide how much snap you have left.
Read the post - Science11 min read
CTL, ATL, and TSB, the three curves that predict your race performance
Fitness builds slowly, fatigue spikes fast, and form is the gap between them. Understand the math, learn to read the chart, and nail your taper.
Read the post - Science10 min read
HRV, sleep, stress, and training load, the science of knowing when to push and when to rest
Your body talks before every ride. Heart rate variability, sleep quality, resting heart rate, and training balance tell you whether today is a green light or a rest day.
Read the post - Science11 min read
Building your aerobic engine, from couch to competitive in one year
How long it really takes to build fitness, what changes inside your body, how to periodize a full year, and how to come back after time off the bike.
Read the post - Science10 min read
Power zones, heart rate zones, FTP, and the power curve, a complete guide
What the zones mean, how FTP anchors everything, and how a power-duration curve reveals your strengths and limiters.
Read the post - Science9 min read
Polarized, pyramid, or base? Picking the right training method for where you are
Why beginners, plateau'd riders, and veterans need fundamentally different approaches, and how to tell which one fits you right now.
Read the post - Science8 min read
Power vs heart rate: why serious cyclists need both
Power is the cause, heart rate is the effect. When they drift apart during a ride, your body is telling you something specific, it's called decoupling.
Read the post - Science7 min read
What is TSS, and why 'two hours easy' isn't two hours hard?
The single number coaches use to quantify how hard a workout actually was, duration alone doesn't tell you, intensity alone doesn't either.
Read the post - Feature6 min read
What is MCP, and why should an athlete care?
The short answer: it's the plug that lets AI coaches read your real training data instead of guessing.
Read the post - Feature7 min read
Instant, Reasoning, and Agent, three modes, one coach
A fast answer, a data-backed analysis, or a full action plan. Know which mode to reach for and why it matters for your training.
Read the post - Feature8 min read
Training plans, from AI generation to your daily calendar
How to create, activate, and follow a structured training plan. See your week view, track completion, and watch planned workouts appear on your calendar.
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