Derivation Web

claim_82004e494ccc435f

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

source_dc74816eeccf457b

# Alpha memo: exercise signal

**Research question:** How far does the Receipt 1 signal transfer across the setting tested by Receipt 2?

**One-sentence alpha:** exercise does not carry one stable direction across the two receipts; the supported alpha is an endpoint- and setting-bounded comparison rather than a universal benefit or harm claim.

**Receipt 1:** Metformin Protects Rat Skeletal Muscle…