The Order Is a Baseline for Comparison, Not a Rule: An Implementation Roadmap (The Kuriyama Protocol, Chapter 12)

Part 17 of a series; the twelfth of fifteen chapter-by-chapter articles. Part 1: 10.5281/zenodo.23587879 · Part 2: 10.5281/zenodo.23587670 · Part 3 (v2): 10.5281/zenodo.23723510 · Part 4: 10.5281/zenodo.23609857 · Part 5: 10.5281/zenodo.23610607 · Part 6: 10.5281/zenodo.23682055 · Part 7: 10.5281/zenodo.23684537 · Part 8: 10.5281/zenodo.23684996 · Part 9: 10.5281/zenodo.23685960 · Part 10: 10.5281/zenodo.23686289 · Part 11: 10.5281/zenodo.23720048 · Part 12: 10.5281/zenodo.23723725 · Part 13: 10.5281/zenodo.23834848 · Part 14: 10.5281/zenodo.23854475 · Part 15: 10.5281/zenodo.23854843 · Part 16: 10.5281/zenodo.23859894 Chapter 12 of The Kuriyama Protocol orders the preceding chapters into practice: where to enter (a two-axis classification), what to assess (a common sequence from information gate to update), and how to correct (a default sequence: weight shift, trunk, lower limb, kinetic linking). The central judgment is that the default correction order is not a rule but a baseline for comparison: only after progress stalls from Step 1 does breaking the order become informative about the bottleneck. A 15-step implementation structure, multi-axis difficulty progression, and the distinction between fatigue-related change (end or rest) and compensation (correct the bottleneck) complete the roadmap. Five gaps found while writing: - The "skill" axis was measured by the single-leg sit-to-stand, which the source textbook uses as a proxy for body-weight-normalized knee extensor strength and the Japanese Orthopaedic Association's locomotive syndrome test describes as a lower-limb strength test; the book itself equated it with relative strength, the parameter assigned to the other axis. Light fingertip touch (Jeka & Lackner, 1994) is added to separate strength-limited from balance-limited failure. - BMI cannot proxy muscle mass; body fat percentage or calf circumference (Chen et al., 2020) replaces it. - "Breathing first" in the assessment order conflicted with weight shift as Step 1 of correction; breathing is recast as a pre-correction check. - Faster progress after breaking the order is confounded by practice and regression to the mean; a unilateral bottleneck correction followed by bilateral return to Step 1 removes both. - The seven difficulty variables are not independent: surface, balance gear and stance all change the base of support; they reduce to about four axes. Five falsifiable predictions are registered (numbered 77–81, continuing the series): - P77. Clients who fail a single-leg rise but succeed with light fingertip touch improve more with balance training; those who do not, with strength training. - P78. Calf circumference agrees with bioimpedance muscle mass better than BMI. - P79. Clients who brace during slow weight shifting progress faster if breathing is addressed first; non-bracers show no difference. - P80. After a unilateral bottleneck correction in stalled clients, Step 1 progresses faster on the corrected side. - P81. Sway changes across surface, balance-gear and stance manipulations collapse onto base-of-support area and compliance; plane-of-motion changes do not. Refutations are welcome. The author has no formal research training. Corrections will be issued as new versions, with earlier versions kept retrievable. The article body is in Japanese. An English summary, the registered predictions and the reference list are included in the document. Contact: [email protected]