Rock climbers over 40 who keep re-injuring the same A2 finger pulley because they’re using recovery timelines and training protocols designed for 25-year-olds — not for aging tendons with slower collagen synthesis.

The book includes:

Custom cover with stone/granite texture, rust & sand palette, and a finger anatomy illustration showing the A2 pulley snap • Table of Contents with 6 chapters + appendix • Chapter 1 — Pulley anatomy: the A1–A5 system, why the A2 fails 75% of the time, the crimp position mechanics, the bowstringing sign • Chapter 2 — Why over-40 climbers are more vulnerable: collagen cross-linking, reduced tenocyte activity, the cumulative microtrauma trap — with a recovery multiplier table by decade • Chapter 3 — Injury grading (Grade 1–4): self-assessment protocol, H-taping test, when to get an ultrasound • Chapter 4 — The 8-week active recovery protocol: rice bucket, progressive tendon loading, the strict 0–1/10 pain rule • Chapter 5 — Rebuilding grip strength: isometric fingerboard protocol, the open-hand advantage, when full crimp can return (spoiler: last) • Chapter 6 — Prevention system: load management equation, the 72-hour rule, weekly A2 palpation scoring, deload week structure • Appendix A — Printable checklist + load-return timeline by grade