George Kittle Return-to-Play Workbench
SF 49ers TE
Reserve/PUP 21-Day Window • Achilles Load Ramp • Kyle Shanahan Personnel Distribution
Standard 3-Wk Ramp
Conservative 4-Wk
Accelerated Return
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Workload & Snap Parameters
Week 1 Practice Intensity
65%
Week 1 Target Game Snaps
22 snaps
Week 2 Practice Intensity
80%
Week 2 Target Game Snaps
38 snaps
Week 3 (Full Clearance) Snaps
54 snaps
In-Line Run/Pass Blocking Share
55%
High-contact Achilles deceleration stressor
Window Day Activation Checkpoint
Day 14
Biomechanical Load & Roster Clearance
Day 14 of 21
Peak Acute Load (AU)
2,850
• Target Window Met
Chronic Baseline (AU)
2,400
28-Day Rolling Avg
Max ACWR Ratio
1.19
• Safe Zone (0.8 - 1.3)
53-Man Roster Spot
Compliant
• 1 Cut/IR Required
Achilles Acute-to-Chronic Load Progression
Acute
Chronic
Sweet Spot (<1.3)
49ers Personnel Grouping & Rep Distribution (Wk 1–3)
Personnel Set
Alignment
Wk 1 Snaps
Wk 2 Snaps
Wk 3 Target
NFL Roster Rule & Tendon Milestones
✓
21-Day Practice Window: Active (Must add to 53-man or revert to season-ending IR by Day 21).
✓
Achilles Re-injury Risk: Within optimal adaptive remodeling corridor (ACWR 1.19).
✓
53-Man Transaction: San Francisco must execute 1 corresponding roster cut/IR move before kickoff.
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Frame Completed State
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