2) How grip + power happen ⚙️💪

• Open hand → more FDP at DIP, lower pulley compression ✅
• Half-crimp → bigger A2/A4 load; FDS+FDP share work ⚖️
• Full crimp (DIP hyperflex) → max contact & force but spikes A2/A4 pressure 💥
• Pinch/pocket → asymmetrical slip loading + torsion
• Dynamic moves/campusing → rapid load cycles ↑ sheath shear & pressure ⏱️

Bottom line: pulleys = efficient force transfer. Smaller, sharper holds + crimping = more contact pressure & glide friction for the sheath to tolerate.

3) Why climbers get tenosynovitis 🧩

• High time-under-tension on small edges
• Load spikes (new board, max hangs, hard projecting) 📈
• Grip bias (habitual half/full crimp; pockets)
• Fatigue/cold/damp skin → higher friction 🥶
• Old pulley sprains → altered mechanics
• Systemic factors (rarer in climbers): diabetes, inflammatory arthritis

How it feels (typical climber pattern) 🎯

• Achy/sharp pain over A2/A4 (mid-finger), worse with crimp/pockets
• Local tenderness, mild fusiform swelling, AM stiffness
• Usually no locking (A1 trigger) and no bowstringing (think pulley tear if present)

Red flags = urgent review 🚩

• Finger at rest in slight flexion, severe pain with passive extension, diffuse swelling, tenderness along the whole sheath ± fever/warmth → possible infectious flexor tenosynovitis → same-day medical care.

4) Physio & Hand-Therapy Plan 🧰

A. Nail the diagnosis ✅

• History: grip types, training spikes, past pulley issues
• Exam: palpate A2/A4, compare crimp vs open hand tolerance
• Differentiate: A1 trigger, pulley sprain/tear, collateral/volar plate sprain, lumbrical shift, ganglion, joint synovitis
• Ultrasound if needed to confirm sheath irritation or exclude rupture

B. Settle symptoms without losing strength (1–2 wks) 🟢

• Relative deload (not total rest): big jugs, open-hand only
• Warm-up: 8–10 min easy traverse + forearm activation + tendon glides
• Local care: brief ice post-session if irritable; meds only if appropriate
• Support: H-tape or slim pulley ring over A2/A4 for feedback
• Drills (pain ≤3/10):
  • Tendon glides: straight → hook → fist → tabletop (5–10 reps, 3–5×/day)
  • Isometrics FDP/FDS (10–20s holds ×5, 1–2×/day)
  • Light wrist/forearm conditioning

C. Reload capacity (2–6+ wks) 🔁

Advance when day-to-day pain ≤2/10 and no next-day flare >24h.

• Hangboard (open-hand start):
  • Wk 1–2: large edge, 7–10s holds, 50–60s rest ×6–8
  • Wk 3–4: medium edge; add density hangs or low-volume repeaters
  • Add half-crimp only once quiet
• Strength/control: slow eccentrics for digits (3–4×8–10); scapular + cuff + wrist endurance
• Climbing: volume → then intensity; load ↑ ≤10–15%/wk

D. Return to performance 🏁

• Half-crimp on bigger edges → progressively smaller; full crimp sparingly and later
• Go/no-go rule: pain >3/10 during or flares next day → step back for 3–5 days
• Technique: economy > squeeze; elbows, footwork, pacing

E. Medical adjuncts (selected cases) 🧪

• US-guided corticosteroid mainly for A1 trigger; mid-finger sheath irritation = optimize load/rehab first
• Surgery = rare for climber-pattern sheath irritation; urgent for confirmed infection

5) Prevention Playbook 🛡️

• Periodise (plan deloads)
• Non-negotiable warm-up 🔥
• Grip variety (open/half; limit full crimp)
• Skin/conditions: warm & dry; manage gritty sessions early in a cycle
• Whole-chain capacity: shoulder/forearm endurance
• Auto-stop: pain >3/10 or next-day flare → pivot

6) Quick FAQ ❓

• Same as trigger finger? Often no—climbers = A2/A4 sheath irritation; trigger = A1 with clicking/locking.
• When can I crimp again? Open-hand 1–2 wks, half-crimp 3–6+ wks, full crimp later if symptoms allow.
• When to scan? Stalled progress at 4–6 wks, suspected pulley tear, or atypical symptoms.

Need a hand that’s climb-savvy? We can assess, plan your reload, and coordinate imaging if needed. Call (03) 9213 7000 or click here