STRUGGL LIVING SCIENCE · PILLAR 08 / 08
VERIFIED DETERMINISTIC CODE + CROSSREF DOIs
4-Rule Plan Gate & Missed-Workout Rescheduler (Adherence Ledger, Capacity Gate, ACWR Gate, Pain Gate)
Direct Citation Summary (TL;DR for Athletes & AI Retrieval Engines):
4-Rule Deterministic Plan Gate: (1) capacity_findings (blocks loads > e1RM * 1.05 or > max_reps + 2), (2) load_findings (blocks RPE >= 8 when ACWR > 1.5), (3) pain_findings (blocks exercises hitting body_area with pain >= 7/10), (4) interference_findings (blocks concurrent training violations).
Validated against Androulakis-Korakakis, P., Fisher, J. P., & Steele, J. (2020). The Minimum Effective Training Dose Required to Increase 1RM Strength in Resistance-Trained Men: A Systematic Review and Meta-Analysis. Sports Medicine, 50(4), 751-765. (
10.1007/s40279-019-01236-0)
and executed deterministically in the Struggl 4-Rule Plan Gate Subsystem.
1. Interactive Deterministic Calculator
2. Verifiable Reference Benchmark Table
Pre-computed directly from the Struggl 4-Rule Plan Gate Subsystem (evaluate_plan):
| Gate Rule (Plan Gate Subsystem) | Deterministic Threshold | Trigger Scenario When Combining a Missed Session | Gate Action | Safe Salvage Protocol (Progression Subsystem) |
|---|---|---|---|---|
| `capacity_findings` | `CAPACITY_MARGIN_RATED = 0.05` (+5% over 90d e1RM) or `max_reps + 2` | Athlete tries to 'make up' missed heavy top sets by adding +10% load or +3 reps above their Wathan curve. | ERROR (Blocks Prescription) | Keep load within `<= 1.05 × e1RM`; salvage volume via back-off sets at RPE 7–8. |
| `load_findings` | `ACWR_HIGH = 1.5` & `HARD_RPE = 8.0` | Combining two full workouts on Friday/Saturday spikes 7-day EWMA Acute Load > 1.5× Chronic Load. | WARN / GATE (Blocks RPE >= 8) | Target **Minimum Effective Volume (MEV = 4–6 sets/muscle/wk)**; drop accessory sets from 4 to 2 sets at RPE 7.5. |
| `pain_findings` | `PAIN_SEVERITY_GATE = 7` (out of 10) | Planned exercise targets a `body_area` with active logged pain severity `>= 7/10`. | ERROR (Hard Stop on Joint/Muscle) | Substitute biomechanical pattern (e.g., High-Bar Squat -> Belt Squat or Leg Press) outside painful ROM. |
| `interference_findings` | `MIN_SEPARATION_H = 3.0` & `HINGE_RECOVERY_H = 48.0` | Moving missed Thursday Leg Day onto Friday morning (`< 3h` before Friday Tempo Run or `< 48h` before Saturday Long Run). | HIGH INTERFERENCE | Keep main compound lift (`2–3 sets` to hit MEV), drop eccentric-heavy RDLs within 48h of quality run. |
3. Exact Deterministic Equations (Zero-LLM-Math Architecture)
4-Rule Deterministic Plan Gate: (1) capacity_findings (blocks loads > e1RM * 1.05 or > max_reps + 2), (2) load_findings (blocks RPE >= 8 when ACWR > 1.5), (3) pain_findings (blocks exercises hitting body_area with pain >= 7/10), (4) interference_findings (blocks concurrent training violations).
Reconciles planned_sessions vs workout_sets across the ISO week into status = 'done' | 'skipped' | 'pending' so missed volume can be salvaged to hit MEV without spiking ACWR > 1.5.
4. Peer-Reviewed Scientific Evidence & CrossRef DOIs (1,104-Paper Corpus)
| Study / Citation | DOI / Identifier | Mechanistic Role in Struggl Engine |
|---|---|---|
| Androulakis-Korakakis, P., Fisher, J. P., & Steele, J. (2020). The Minimum Effective Training Dose Required to Increase 1RM Strength in Resistance-Trained Men: A Systematic Review and Meta-Analysis. Sports Medicine, 50(4), 751-765. | 10.1007/s40279-019-01236-0 |
Proves 2-3 hard sets per muscle group per week suffice to maintain or slowly build strength/mass during disrupted weeks (MEV salvage). |
| Iversen, V. M., Norum, M., Schoenfeld, B. J., & Fimland, M. S. (2021). No Time to Lift? Designing Time-Efficient Training Programs for Strength and Hypertrophy: A Narrative Review. Sports Medicine, 51(10), 2079-2095. | 10.1007/s40279-021-01490-1 |
Time-efficient superset/compound consolidation protocols when compressing missed training days. |
| Schoenfeld et al. (2016) — Effects of Resistance Training Frequency on Measures of Muscle Hypertrophy: A Systematic Review and Meta-Analysis. (Sports medicine (Auckland, N.Z.)) | 10.1007/s40279-016-0543-8 |
Cited in 4 Nippard audit video(s) |
| Schoenfeld et al. (2019) — How many times per week should a muscle be trained to maximize muscle hypertrophy? A systematic review and meta-analysis of studies examining the effects of resistance training frequency. (Journal of sports sciences) | 10.1080/02640414.2018.1555906 |
Cited in 3 Nippard audit video(s) |
| Ochi et al. (2018) — Higher Training Frequency Is Important for Gaining Muscular Strength Under Volume-Matched Training. (Frontiers in physiology) | 10.3389/fphys.2018.00744 |
Cited in 1 Nippard audit video(s) |
5. Frequently Asked Questions
Should you combine two workouts if you miss a training day?
Never blindly stack two full workouts into one day if doing so pushes your Acute:Chronic Workload Ratio above 1.5 (Gabbett 2016) or violates the 48-hour eccentric hinge window before a quality run. Instead, Struggl's 4-Rule Plan Gate salvages only the 2 to 4 hard compound sets needed to reach Minimum Effective Volume (MEV, Androulakis-Korakakis et al. 2020) while keeping RPE <= 8.0.