Pulse OS

Science

Hormones, cycle, and reproductive health. Then the sport.

Women's health physiology is the base. Training load, nutrition, sleep, and mental performance sit on that record. The intelligence model turns them into one prediction against her own range.

The intelligence model

One model, against her own trailing range.

Cycle, training load, nutrition, sleep, and mental performance are inputs to one model. The output is a prediction against her own trailing range, not a population table. Pulsey can show the working. A clinician still writes the assessment.

Research pillars

Women's health and cycle

Hormones, cycle day, and reproductive conditions sit on the same timeline as the week. Irregularity and amenorrhea are clinical rows. Cycle-phase periodization is context for load, not a wellness score.

Training load

Session load, intensity, and the ramp from a short window against a longer one. Wearable intensity regulation and overreaching sit on the same person as the plan the coach wrote.

Nutrition and fueling

Energy availability, hydration, and recovery nutrition on the same chart as expenditure. Heat and fluid needs move with the session and the phase. This is intake against work, not a calorie target copied from a table.

Mental and behavioural performance

Psychological readiness, how she reports she feels, and interoception belong on the record. Return-to-play is not only a tissue test. Psychological safety and load are inputs, not a separate app.

Sleep and recovery

Sleep is the recovery multiplier. Rest is read in context: what she did, where she was, and what the next session asks for. Gaps stay gaps.

Durability and REDs

Soft-tissue windows, joint laxity, and energy deficiency are triage signals for clinic review. Ferritin, load, and symptoms sit together. The model flags. It does not diagnose.

Interactive research explorer

Select a topic and read the literature we build on.

How estradiol, progesterone, LH, and FSH move across a spontaneous cycle, and why extracted lab values stay in review until a clinician has signed them.

Supported literature