Derivation Web

claim_8a87ccd5f648446a

{"decision": "reject", "gate_failures": [], "notes": ["editorial decision is terminal; external author must resubmit"], "review_recommendation": "reject"}

source_f975d0a03e2941f2

# Alpha memo: cold water immersion training modality boundary
**One-sentence alpha:** Receipts suggest cold-water immersion may show divergent training-context signals, with one finding a possible negative tolerance signal in heat-based training and the other reporting training-induced Na⁺,K⁺-ATPase isoform changes without a clean CWI-specific directional endpoint.
**Receipt 1:** *The Effects of D…