Protocol / PUBLIC-SAFE SUMMARY
A versioned participant session
Documented and implemented; device validation remains
Baseline is five minutes, seated quietly with back supported, feet flat and the Watch arm relaxed. The resting reference is the median of delivered valid samples in the final minute.
High Knees, Stair Climbing and Sitting Toe Touches each last 30 seconds. Music marks start and stop, not cadence. Participants use a comfortable pace and may stop at any time.
Recovery is seated and lasts at least two minutes. HR must be at or below 110% of resting for a confirmed 30-second interval. A gap longer than five seconds resets confirmation. At five minutes without confirmation, the app enters adult review rather than automatically continuing.
Six exercise orders are counterbalanced. Within each 25-person group, one order receives five places and the other five orders receive four. The extra slot rotates across the four age groups.
Supporting workspace artifacts
Source locations identify the original artifacts in the private project. Raw files are not publicly served. Hashes identify the reviewed source snapshot; they are provenance, not external certification.
docs/study-plan.md:184SHA-256 8917413b5ba1bc1666646352b3cd73c7f9a294e707ed0d1bfeab3c9c17826038App/Shared/Protocol/ProtocolDefinition.swift:13SHA-256 3db6a9dd9010b931b001cdb9fc0b3e0842163c1242e573935d298a94c8dbe44f