SomviaWhy two logbooks hide the problem
Most hybrid training is tracked in two places: a running app that counts kilometres and a lifting app that counts sets. Each keeps its own idea of a big week, and each week can look reasonable on its own while the body is carrying both. Fatigue does not keep two ledgers. It arrives as a sum, on a morning when the run felt heavy for no reason the running log can show.
The fix is not a better running log or a better lifting log. It is one number that both kinds of session add to, read against how recovered you are.
How one number is built
Every workout in Apple Health with a heart-rate record gets a load. The load weights the minutes of the session by how hard the heart was working, relative to your own resting and maximum heart rate, so an easy hour and a hard hour score differently and a run and a lifting session score on the same scale. Where a session carries pace or power curves as well, Somvia uses them. A strength session usually has heart rate only, and that is enough.
The sessions arrive from whatever wrote them: the watch, a phone-recorded workout with a chest strap, a third-party app that saves to Apple Health. Somvia does not read the other apps, only Health, and it does not care what the session was labelled. A Functional Strength Training entry and an Outdoor Run get the same treatment.
What it does not read. Sets, reps and weights are not part of load. A strength session contributes its heart-rate load and its duration, nothing more. The lifting side is counted, not analysed.
Long-term load, and what this week is doing to it
Two averages of the daily load carry most of the meaning. Long-term load is the six-week average, what the last block has built in you. This week's volume is the seven-day average, what you are doing right now. Read together they answer the question a total cannot: is this week adding to what you have, or going in faster than you absorb it.
Somvia charts both on one plot, with the value from four weeks ago beside each so the direction is visible without reading the axis. When this week runs well ahead of the long-term line for more than a few days, the training state says so, in a word. Overreaching is the one to act on. Maintaining after three weeks of trying to build is the other one, because it means the load is not landing.
The morning score
Recovery is a number each morning from the night just gone: overnight HRV and resting heart rate against your own usual, last night's sleep, and the load still owed from recent sessions. The load part is where hybrid training shows up, because it now includes the lifting. A heavy leg day lands in tomorrow's recovery the same way a long run does, which is the whole point of counting them together.
It opens to show which of the four moved it, so a low morning after a normal night points at the load, and a low morning after a short night points at the sleep.
Where progress is measured
On the running side: threshold pace and heart rate estimated from your sustained hard efforts, cardio fitness, and heart-rate recovery after a run, all charted over months. On the whole-body side: recovery and the training state. Strength progress is not measured, because Somvia does not read what was lifted. It counts the cost of the session, not the result.
The early warning
Resting heart rate a few beats above your own usual for several mornings, or overnight HRV sitting below your own range, are the signals that the sum has gone too far, and they show up before the sessions do. Somvia raises a card on the Today screen when either drifts from your baseline. The baseline is yours, built from your own nights, because there is no population figure that fits everyone.
Questions
Does a strength session get the same kind of load as a run?
Yes, from its heart-rate record. Load weights the minutes of a session by how hard the heart was working relative to your own resting and maximum heart rate, so a run and a lifting session reduce to the same scale. Where a session also has pace or power curves, Somvia uses those; a strength session normally has heart rate only, and that is enough for a load.
Does Somvia track my lifts or my strength progress?
No. It does not read sets, reps or weights. A strength session contributes its load and its duration, nothing more. Progress is tracked on the running side, through threshold pace, cardio fitness and heart-rate recovery, and on the whole-body side through recovery and the training state.
What if I lift without a watch?
A session with no heart rate in Apple Health still counts as a session with a duration, but it cannot be given a load, so it does not move the totals. Somvia lists which sessions were skipped rather than guessing an intensity. A chest strap paired to the phone, or any watch that writes heart rate to Apple Health, is enough.
Is the recovery score any different for a hybrid athlete?
The inputs are the same for everyone: overnight HRV and resting heart rate against your own baseline, last night's sleep, and the load still owed from recent sessions. What differs is that the load part now includes the lifting, so a heavy leg day shows up in tomorrow's recovery the same way a long run does.