Passive heat
Sauna and passive heat training
Track controlled heat exposure such as sauna sessions while keeping passive-heat context distinct from active runs and rides.
SWELTR Beta
Heat adaptation tracking for sauna, running, cycling, and race prep.
Log passive heat training and active heat activities, estimate adaptation trends, and review suggested protocol starting points in one beta workspace. Sweltr is an educational fitness-tracking tool, not medical advice.
Example beta dashboard
AthleteProtocolScore
Adaptation Score
67/100
Well Adapted
Eight-week score trend
71
CV
63
Thermo
68
Percept.
Score67 / 100CV71Thermo63Perceptual68Passive heatsaunaHeat activityrun / rideHeat loadmediumSweat onsettrend improvingProtocolfoundation day 7RecoveryloggedStatusbeta estimateScore67 / 100CV71Thermo63Perceptual68Passive heatsaunaHeat activityrun / rideHeat loadmediumSweat onsettrend improvingProtocolfoundation day 7RecoveryloggedStatusbeta estimate
Multimodal heat training
One place to track passive heat and active heat work.
Sweltr is built for athletes who prepare through more than one heat modality: sauna sessions, running or cycling in heat, indoor heat exposure, and coach-reviewed protocol work. Start with the race heat readiness check or join the beta to track sessions over time.
Active heat
Running, cycling, and outdoor heat
Log active heat activities with temperature, duration, effort, clothing, ventilation, sweat-rate, comfort, and hydration context.
Review
Readiness, protocols, and coach oversight
Connect heat exposure to readiness checks, suggested protocol starting points, score trends, and assigned-coach review without turning estimates into medical advice.
Adaptation Score
One estimate, with the inputs visible.
The score is a 0-100 estimate built from cardiovascular, thermoregulatory, and perceptual inputs across logged passive heat and active heat work. It is designed for tracking and review, not diagnosis, treatment, or medical prescription.
CV Score
35%Heart-rate response, recovery, and session trend inputs.
Thermo Score
40%Sweat onset, heat-load response, and temperature context.
Perceptual Score
25%RPE, thermal comfort, hydration, and athlete-reported context.
How it works
Track heat exposure. Review the trend. Keep context in view.
01
Log heat exposure
Track passive heat training and active heat activities with duration, temperature, effort, and relevant biometric inputs.
02
Review estimated adaptation
Sweltr calculates a 0-100 estimate across cardiovascular, thermoregulatory, and perceptual dimensions.
03
Adjust with context
Use trends, protocol progress, and safety judgment to decide what to review with a coach or qualified professional.
Built for beta review
Useful for individual athletes and assigned coaches.
For athletes
See how your heat work is trending.
Sweltr helps athletes collect heat-training context from passive heat and active heat sessions, then review estimated adaptation without turning app output into medical advice.
- Log sauna, running, cycling, and other heat sessions
- See adaptation trends and score history
- Review suggested protocol starting points
- Track sweat onset, heat load, and recovery notes
- Keep safety context visible during beta
For coaches
Review assigned athletes in one workspace.
Coaches can review connected athlete data, protocol status, notes, and beta feedback while respecting athlete consent and app access controls.
- View assigned athlete rosters
- Review score trends and session history
- Assign protocol starting points for athlete review
- Keep coach notes connected to athlete profiles
- Use Inbox updates for relationship and protocol events
Beta expectations
Built to learn before broader launch.
Sweltr is currently in beta. Features, formulas, templates, scores, and suggested protocol guidance may change as the product improves. Use outputs as educational estimates and starting points, and adjust based on your experience and qualified guidance when appropriate.
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