# Study 000H Plain-Language Summary

Study `000H` asks what seems to separate high-burden from low-burden cadence-protected running. The answer is not that cadence changes more or less. The cadence-protected pattern is already there in both the October 2025 cluster and the April 2026 boundary probe. What changes more clearly is the amount of local running embedding around the run.

The strongest supported support factors are high running-share context and dense stabilized-context continuity. Longer bout length appears to help too, but the current data cannot isolate it as cleanly as embedding support.