SPORT::StrengthTraining (SPOS.STR)
= a closed-loop system that increases force/power capacity and tissue robustness
  while keeping joint/tendon/spine risk below threshold,
  and while producing transferable performance in the target sport(s).
Output is “strength reliability” + “movement quality under load” + “injury risk reduction”.
Not “max once then break”.

P3
- consistent training continuity
- stable technique under load (no form collapse)
- progressive overload managed (volume/intensity waves)
- recovery adequate; no chronic joint pain
- strength transfers to sport: faster, stronger, more resilient
P2
- progress sometimes, stalls often
- technique degrades near heavy loads
- inconsistent recovery; soreness too frequent
- small nagging pains appear (shoulder/knee/back)
P1
- frequent missed sessions
- plateau + fatigue accumulation
- repeated flare-ups (tendonitis, back pain)
- ego lifting; poor bracing; unstable patterns
P0
- acute injury (disc, tear) or chronic pain that stops training
- burnout / loss of capacity to train reliably

Z0 ego-load (too heavy) + Z0 poor sleep
→ Z1 no progression plan + repeated near-failure sets
→ Z0 technique collapse + joint/tendon irritation
→ Z2 training breaks + fear + compensation patterns
→ P2 → P1 → P0 (injury or chronic pain)
Repair: reduce load, rebuild technique, reintroduce progression with recovery gates.

TIMEFLOW::STRENGTH_FUNCTION
T0 survival: lifting/carrying, climbing, fighting, tool use
T1 ancient civilisations: soldier readiness; labor capacity; prestige displays
T2 medieval/early modern: martial conditioning; craft labor strength; wrestling traditions
T3 industrial: physical culture, organized sport, standardized gyms
T4 modern: S&C integrated into elite sport + military + rehabilitation
T5 sensor era: load tracking, velocity-based training, injury-risk governance, longevity focus

STR::Primitives
PR0 Movement patterns: squat/hinge/push/pull/carry/brace
PR1 Technique stability: repeatable bar path, joint stacking
PR2 Bracing + breathing: spine control under load
PR3 Tissue capacity: tendon/ligament adaptation, bone density support
PR4 Force production: maximal strength (1–5 reps)
PR5 Hypertrophy base: muscle cross-section (6–12 reps)
PR6 Power: rate of force (jumps, throws, Olympic-derivatives)
PR7 Work capacity: repeat sets without form degradation
PR8 Recovery governance: sleep/fuel/stress management

Z0::Top Failure Modes (Strength)
FM0.T1 ego lifting (maxing too often)
FM0.T2 poor bracing (back pain risk)
FM0.T3 bad depth/position → knee/hip irritation
FM0.T4 too much near-failure volume (fatigue debt)
FM0.T5 program hopping (no adaptation time)
FM0.T6 imbalance: push >> pull, quad >> posterior chain
FM0.T7 neglect warm-up + mobility, especially hips/ankles/shoulders
FM0.T8 low fueling (protein deficit) + sleep debt
Z0::Sensor Pack (Minimum viable)
S0.T1 session log: sets/reps/load + RPE (effort rating)
S0.T2 pain map: back/knee/shoulder/hip (0–10)
S0.T3 technique stability score (self/coach video check)
S0.T4 recovery score: sleep hours + fatigue (0–10)
S0.T5 performance marker: estimated 5RM/3RM trend (not daily max)
S0.T6 volume: total weekly hard sets per pattern
Z0::Repairs
R0.T1 max frequency cap: heavy top set 1×/week (or less for novices)
R0.T2 bracing protocol: 360° brace + controlled eccentric
R0.T3 submax technique block: 70–85% work with perfect reps
R0.T4 deload rule: reduce volume 30–50% when fatigue/pain trends rise
R0.T5 balance rule: pull volume ≥ push; posterior chain maintained
R0.T6 recovery baseline: protein + sleep window locked

Z1::Failure Modes
FM1.T1 no progression model (random workouts)
FM1.T2 intensity too high too often
FM1.T3 volume too high for recovery capacity
FM1.T4 poor exercise selection for goal (sport mismatch)
FM1.T5 no technique feedback loop (no video / coaching)
Z1::Sensors
S1.T1 progression slope: load or reps increasing over 4–8 weeks
S1.T2 fatigue debt: RPE rising at same load
S1.T3 technique breakdown frequency near top sets
S1.T4 pain trend correlated with specific lifts
S1.T5 adherence: sessions completed / planned
Z1::Repairs
R1.T1 simple periodization: accumulate → intensify → deload
R1.T2 top-set + back-off structure (safe strength build)
R1.T3 exercise rotation to reduce joint irritation
R1.T4 sport transfer mapping: choose lifts that support target movement
R1.T5 weekly technique review cadence

Z2::Failure Modes
FM2.T1 unsafe culture: “lift through pain”
FM2.T2 no spotting/safety standards
FM2.T3 novice thrown into advanced programming
FM2.T4 lack of warm-up space/time; poor equipment maintenance
Z2::Sensors
S2.T1 incident rate (injuries near max lifts)
S2.T2 novice retention / dropout
S2.T3 coaching coverage (coach-to-athlete ratio)
S2.T4 equipment failure reports
Z2::Repairs
R2.T1 safety SOP: rack pins, spot rules, lift standards
R2.T2 onboarding pathway: technique gates before heavy loading
R2.T3 coaching minimums + supervision for novices
R2.T4 facility standards: maintenance + warm-up provision

Z3::Failure Modes
FM3.T1 competition incentives → rapid weight cuts + risky peaking
FM3.T2 judging inconsistency (depth/lockout standards)
FM3.T3 performance-enhancing drug pressures (integrity decay)
Z3::Sensors
S3.T1 injury spikes around peaking cycles
S3.T2 rapid bodyweight changes pre-event
S3.T3 judging disputes + standard drift
S3.T4 integrity signals (testing coverage where relevant)
Z3::Repairs
R3.T1 peaking safety standards (cap intensity exposure)
R3.T2 standardized judging education + calibration
R3.T3 health-first policies: weight-cut limits + hydration checks

STATE::STRENGTH
- Intensity In = heavy exposure frequency (≥85% or RPE≥8)
- Volume Vo = weekly hard sets per pattern
- Technique Stability TS = breakdown count near top sets
- Recovery Rec = sleep + fatigue trend
- Pain Risk PR = pain map trend
- Progress Pg = 4–8 week trend in reps/load
Phase Estimator:
IF Pg positive AND TS stable AND PR low AND Rec stable → P3 drift
IF TS breaking OR PR rising OR Rec falling → P2/P1 warning
IF training stops due to pain/injury → P0 risk

1) deload 5–10 days (reduce volume 30–50%)
2) return with submax top sets (RPE 7–8)
3) rebuild volume gradually (add 1–2 hard sets/week)
4) reintroduce heavier exposures (≤1–2/week)
5) lock sleep + protein baseline; monitor pain trend

Trigger: pain during hinge/squat OR next-day sharpness + movement restriction
1) reduce compressive loading; keep training via safer variants
2) rebuild bracing + hinge pattern (light, perfect reps)
3) strengthen trunk endurance + glute/hamstring support
4) reintroduce load with strict technique gates
5) audit: sleep/stress + ego-load + warm-up quality

1) remove provocative range temporarily (modify grip/depth)
2) add prehab + balanced pulling/posterior chain
3) reduce near-failure sets; keep reps clean
4) gradual ROM restoration with pain-free gates
5) technique check: stacking, control, tempo

CivOS Link:
- Strength is the “base chassis” module for human performance:
  it increases resilience, reduces injury burden, and supports workforce capability (Z0–Z2),
  while enabling elite projection in many sports (Z4–Z5).
- System brittleness risk: unsafe culture, misinformation, over-concentration of “guru” norms.
- Repair: standardized safety thresholds, onboarding gates, and transparent load governance.