SPORT::Athletics::Throws (SPOS.ATH.THR)
= repeatable throwing performance (power × timing × sequencing × release consistency)
  across training blocks and competition days,
  while keeping shoulder/elbow/wrist + spine/hip load below injury threshold.
Output is “distance reliability under maximal intent” + “availability”.

P3
- technique sequencing stable at high intent
- implement release consistent; foul rate controlled
- strength/power supports technique (does not override it)
- shoulder/elbow/spine robust; low recurrence pain
- competition routine consistent; peaks scheduled
P2
- good throws mixed with poor timing days
- release angle inconsistent; fouls appear
- shoulder/elbow tightness recurring
- power exists but leaks through poor sequencing
P1
- frequent missed sessions due to arm/back pain
- technique regression; fear/guarding appears
- inconsistent performance; training becomes “forced”
- overuse patterns (elbow/shoulder) or back flare-ups
P0
- significant injury (UCL/elbow, shoulder tear, disc/back injury)
- cannot train/compete reliably

Z1 high-intent throw volume spike + Z0 inadequate shoulder/scap strength
→ Z0 sequencing breaks (arm “takes over”)
→ Z0 elbow/shoulder irritation + back compensation
→ Z2 missed sessions + loss of timing
→ P2 → P1 → P0 (arm/back injury)
Repair: cap high-intent throws, rebuild sequencing with drills, restore shoulder/scap and trunk capacity, reintroduce intent progressively.

TIMEFLOW::THROWS_FUNCTION
T0 survival: spear/stone throwing for hunting and conflict
T1 ancient civilisations: military readiness (javelin/spear), prestige displays
T2 pre-modern: martial sports, festivals, strength culture
T3 industrial: standardized athletics events; clubs; measurement/records
T4 modern: elite biomechanics + strength science + national projection
T5 sensor era: sequencing analytics, joint load governance, individualized volume/intensity control

THR::Primitives
PR0 Footwork and positions (entry, glide/rotation, power position)
PR1 Sequencing: ground → hips → torso → arm → implement
PR2 Release mechanics (angle, point, timing)
PR3 Block/bracing (transfer force without collapsing)
PR4 Mobility: hips/Thoracic/shoulder with control
PR5 Strength base: legs/hips/trunk + scapular stability
PR6 Elastic intent: safe high-velocity power expression
PR7 Volume governance: number of high-intent throws/week
PR8 Competition routine: cues, fouls control, arousal regulation

Z0::Top Failure Modes (Throws)
FM0.TH1 “arm throw” (sequencing failure) → elbow/shoulder overload
FM0.TH2 weak block/bracing → power leak + back stress
FM0.TH3 poor hip mobility/control → compensations
FM0.TH4 too many max-intent throws/week (overuse)
FM0.TH5 technical reps sloppy; no drill gates
FM0.TH6 shoulder/scap weakness → impingement risk
FM0.TH7 elbow pain from grip/extension overload (javelin risk)
FM0.TH8 competition arousal too high → fouls + rushed throws
Z0::Sensor Pack (Minimum viable)
S0.TH1 high-intent throws count/week (max throws)
S0.TH2 pain map: shoulder/elbow/wrist/back/hip (0–10) + next-day stiffness
S0.TH3 foul rate (training + meets)
S0.TH4 release consistency proxy: “same feel” score + distance variance
S0.TH5 sequencing score: video check (hips lead? arm late?)
S0.TH6 recovery: sleep + fatigue score
S0.TH7 strength marker: key lifts/med-ball throws trend (support capacity)
Z0::Repairs
R0.TH1 drill-first: ground-up sequencing drills; reduce intent temporarily
R0.TH2 block/bracing training: positions + trunk stiffness work
R0.TH3 mobility with control: hips + thoracic rotation + shoulder
R0.TH4 cap max throws; add low-intent technical reps instead
R0.TH5 cuff/scap prehab + forearm work (esp javelin)
R0.TH6 gradual intent ladder: 70% → 80% → 90–95% (rare full max)
R0.TH7 competition routine: breath + 1 cue; avoid “try harder”

Z1::Failure Modes
FM1.TH1 too many maximal days; no deload
FM1.TH2 strength work stacked poorly with throw intent (fatigue overload)
FM1.TH3 no sequencing progression gates (skipping fundamentals)
FM1.TH4 one plan for all implements/body types
FM1.TH5 lack of technical feedback loop (no video cadence)
Z1::Sensors
S1.TH1 elbow/shoulder/back complaints after max-intent clusters
S1.TH2 distance variance across sessions (consistency)
S1.TH3 sequencing breakdown frequency at higher intent
S1.TH4 strength-power trend vs throw trend (transfer signal)
S1.TH5 meet performance variance (pressure execution)
Z1::Repairs
R1.TH1 weekly structure: technique days + limited max-intent days + recovery
R1.TH2 coordinate lifting: heavy strength away from max-intent throws
R1.TH3 progression gates: drills mastered before intent increases
R1.TH4 individualize: implement, limb lengths, mobility constraints
R1.TH5 video micro-review weekly + one correction target

Z2::Failure Modes
FM2.TH1 youth pushed into heavy implements too soon
FM2.TH2 no strength/mobility base program
FM2.TH3 selection bias toward early strength; late developers lost
FM2.TH4 weak medical integration for elbow/shoulder warning signs
Z2::Sensors
S2.TH1 injury days lost (elbow/shoulder/back)
S2.TH2 progression curve: technique consistency before distance jumps
S2.TH3 dropout/burnout rate
S2.TH4 volume spikes around meets
Z2::Repairs
R2.TH1 age-appropriate implement progression + intent caps
R2.TH2 minimum strength/mobility standards
R2.TH3 development squads for late bloomers
R2.TH4 joint-risk SOP: early detection + load reduction ladder

Z3::Failure Modes
FM3.TH1 excessive rounds/events in short windows (fatigue + injury)
FM3.TH2 unsafe circles/runways or poor warm-up access
FM3.TH3 inconsistent officiating affects foul reliability
Z3::Sensors
S3.TH1 foul-rate spikes late in rounds (fatigue signal)
S3.TH2 injury incidence at meet clusters
S3.TH3 venue incident reports
Z3::Repairs
R3.TH1 rest standards between rounds/events
R3.TH2 venue safety and warm-up standards
R3.TH3 officiating calibration

STATE::THROWS
- IntentDose ID = max-intent throws/week
- JointRisk JR = shoulder/elbow/back pain + stiffness trend
- Sequencing S = video score (ground→hips→torso→arm)
- Consistency C = distance variance + foul rate
- StrengthSupport SS = strength/power markers trend
- Recovery Rec = sleep + fatigue trend
Phase Estimator:
IF ID controlled AND JR low AND S stable AND C improving → P3 drift
IF JR rising OR S breaking at higher intent OR foul rate rising → P2/P1 warning
IF injury stops throwing → P0 risk

1) reduce intent temporarily; return to sequencing drills
2) rebuild positions: power position + block/bracing
3) add med-ball throws for safe sequencing power
4) reintroduce throws with intent ladder (70→80→90%)
5) cap max throws; maintain cuff/scap prehab

1) simplify cue to 1 target (e.g., rhythm into power position)
2) short approach/entry to stabilize timing
3) pressure reps: simulated rounds with consequence scoring
4) rebuild routine: breath + cue + commit
5) review: foul trigger moment, then retrain that segment

Trigger: back pain trend rising OR stiffness limits rotation
1) reduce rotational load; switch to safer variants
2) rebuild trunk stiffness + hip mobility control
3) audit technique: bracing, block, excessive hyperextension
4) gradual reintroduction with intent caps
5) coordinate lifting: avoid stacking heavy pulls with max throws

CivOS Link:
- Throws are “tool-physics heritage” sports:
  they preserve and project ancient survival capabilities (throwing weapons/tools)
  into modern measured performance pipelines.
- Brittleness risk: intent/volume spikes + poor sequencing → joint failure.
- Repair: sequencing gates + intent governance + joint-prehab standards.