IFX Shred 16 — Resources Hub
CUT SMART • TRAIN HARD • KEEP MUSCLE
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Shred 16 — Start Here
Get set up once. Then execute daily.
- Calculate your targets with /macro-calculator.
- Build a realistic “default day” with /meal-builder and save 3–5 go-to meals.
- Pick your training days (4 lift days + 1 extra cardio day).
- During the cut, your goal is strength retention + consistency. Don’t chase failure on big lifts.
- Track daily (workouts + nutrition). Adjust every 7–14 days using trend weight + performance + recovery.
Program Overview + Weekly Structure
Heavy compound first → antagonistic supersets → cardio finish.
Style: One heavy compound (low reps) + opposing supersets (efficient volume + work capacity).
Weekly layout: 4 lifting days + 1 additional Zone 2 cardio day.
What “antagonistic supersets” means
- Upper: Push/Pull (press + row, pulldown + fly, etc.)
- Lower: Quad/Ham or Hinge/Unilateral pairings
- Minimal wasted time. More work capacity without extending sessions forever.
Primary compounds (strength retention)
Exercise Substitutions (Quick Swap Guide)
Keep the same pattern + intent. Swap only if needed.
2) Match the equipment you have (barbell → DB/machine).
3) Keep reps/effort the same (still 0–2 RIR on accessories).
4) If joints don’t like it, swap it — don’t “power through” pain.
Primary Compounds (Shred 16)
If shoulders cranky: Neutral-grip DB Press • High-incline DB Press
If low back is fried: Hack Squat • Belt Squat • Leg Press
Low equipment: Band Pulldown • Inverted Row
If grip is limiting: Straps allowed on hinge sets
Superset Swaps (Opposing Pairings)
| If you can’t do… | Swap to… | Keep the intent |
|---|---|---|
| DB Row / Chest-Supported Row | Seated Cable Row • Machine Row • 1-Arm Cable Row | Hard squeeze + controlled eccentric |
| DB Bench / Press variation | Machine Press • Push-up (weighted) • Smith Press | Clean reps, no bouncing |
| Lateral Raise | Cable Lateral Raise • Machine Lateral Raise | Delts, not traps |
| Leg Extension | Sissy Squat (assisted) • TKE • High-rep Goblet Squat | Quad pump, knee-friendly |
| Hamstring Curl | Slider Curl • Stability Ball Curl • Band Curl | Full ROM + slow lower |
| Triceps Pressdown | Rope Pressdown • Overhead Cable Extension • Dips (assisted) | Elbows stable, full lockout |
| Curls (DB/Cable) | EZ Curl • Machine Curl • Rope Curl | No swinging, full ROM |
Cardio Rules (Zone 2 Targets)
Cardio is part of the program—keep it consistent and sustainable.
After every lift (4 days/week)
| Block | Zone 2 time | Notes |
|---|---|---|
| Weeks 1–3 | 25–35 min | Build the habit + nail pace |
| Weeks 5–7 | 30–40 min | Increase time slowly, keep it easy |
| Weeks 9–11 | 35–45 min | Most productive block for fat loss |
| Weeks 13–16 | 45–60 min | Prioritize recovery; keep strength stable |
Extra cardio day (non-lifting)
Cut Nutrition + Adherence Rules
Simple targets. Consistent execution. Smart adjustments.
Adjustment cadence: change only after 7–14 days of consistent tracking.
Macro defaults (simple + effective)
Non-negotiable on a cut.
Keep hormones + satiety stable.
Bias around training (pre/post).
Easy lever that protects recovery.
Adherence rules (these matter more than hacks)
- Track oils/sauces/drinks honestly. Those are the usual “invisible calories.”
- Hit protein daily. Then hit calories. Then nail carbs around training.
- If hunger is high: add volume foods (lean protein, potatoes/rice, veggies, fruit).
Progression Rules (Supersets)
Progress without blowing up fatigue during a cut.
Main lift (first movement)
Progression: hit top reps on all sets with clean reps → add 2.5–10 lb next week.
Superset accessories (everything after)
Progression: add reps to the top of the range first → then add a small load jump.
Density rule (optional, use sparingly)
- If performance is stable: reduce rest between rounds by 10–15 seconds.
- If performance drops: keep rest the same and focus on clean reps.
Deloads + Diet Break Guidance
Deloads keep progress clean and prevent burnout.
(Week 12 can also be a diet break week if needed.)
Deload training rules
- Cut sets: reduce total sets by ~40–50%
- Drop load: -10–15%
- Effort: keep ~3–4 RIR (RPE 6–7)
- Cardio: keep Zone 2 easy; reduce time slightly if needed
Diet break option (when to use)
- Sleep is worsening, soreness is high, and performance is trending down.
- Hunger is extreme and adherence is slipping.
- Move calories to maintenance for 5–7 days (keep protein high), then resume the deficit.
RPE + RIR Quick Guide
Use this to choose the right weight and stop sets before form breaks.
What they mean
RIR (Reps In Reserve): how many clean reps you could still do before failure.
RPE (Rate of Perceived Exertion): how hard the set felt on a 1–10 scale.
RPE ↔ RIR Cheat Sheet
| RPE | RIR | What it feels like |
|---|---|---|
| 10 | 0 | Max effort — no reps left (rare; testing only) |
| 9 | 1 | Very hard — maybe 1 clean rep left |
| 8 | 2 | Hard — 2 clean reps left (most main lifts) |
| 7 | 3 | Moderate — fast reps, plenty left (volume / technique) |
| 6 | 4+ | Easy — warm-up / deload / recovery work |
How to use it (fast)
- Main lifts: RPE 7–9 (≈ 1–3 RIR). Stop if form breaks.
- Accessories: 0–2 RIR for hard, clean reps.
- Deload weeks: 3–4 RIR (≈ RPE 6–7). Leave the gym fresh.
Training Intensity Rules
Main lifts vs supersets vs deload rules across all IFX programs.
Main lifts (first movement)
Accessories / supersets
Deload + adjustments
Too hard? -5–10% load or cap sets. Too easy? add small load or reduce rest slightly.
The 4 R’s of Recovery
Your simple framework to keep progressing while cutting.
Carbs: bias pre/post training.
Hydration: consistent every day.
Steps: daily low-intensity movement.
Spread protein: 3–5 meals.
Mobility: 5–10 min/day.
Deloads: planned fatigue management.
Small wins: reps/quality first.
Consistency: beats intensity spikes.
Warm-up Standards
How to ramp into heavy work sets without wasting energy.
1) General Warm-up (3–5 min)
2) Movement Prep (3–6 min)
- Hinge day: hip hinge drill + glute bridge + hamstring sweep (light).
- Squat day: goblet squat patterning + ankle/hip openers.
- Upper day: band pull-aparts + scap push-ups + light rows.
3) Ramp Sets (minimum 3)
| Set | Load | Reps | Notes |
|---|---|---|---|
| Warm-up 1 | Light | 8–10 | Full ROM, smooth tempo |
| Warm-up 2 | Moderate | 5–6 | Brace and groove technique |
| Warm-up 3 | Heavier | 2–3 | Should feel “snappy”, not fatiguing |
| Optional | Near work weight | 1 | If needed for confidence/comfort |
What’s Next? (After Shred 16)
Keep the results. Recover your output. Then pick your next goal.
The win is holding your new bodyweight while strength and performance come back.
Step 1 — Return to Maintenance (minimum 4 weeks)
Simple method: +150–250 kcal/day each week until weight stabilizes.
Add most calories back through carbs (training performance + recovery).
Step 2 — Run a “Transition Phase” (2–4 weeks)
This is a low-fatigue block designed to restore recovery, joints, and motivation while keeping training consistent.
Low intensity + moderate volume.
Most sets at 2–4 RIR (RPE 6–8).
Focus on easy pace + steps.
Goal: recovery, not punishment.
For this phase, build sessions from your favorite exercises and focus on clean reps + quality movement.
DIY “Favorite Exercises” Template (Quick Build)
| Workout (3–4 days) | What to include | How hard |
|---|---|---|
| Day A — Full Body | Squat or leg press • Press • Row • 1–2 accessories • Core | 2–4 RIR (no grinders) |
| Day B — Full Body | Hinge • Pull-up/pulldown • Incline/DB press • 1–2 accessories • Core | 2–4 RIR |
| Day C — Upper/Lower | Pick your best-feeling variations • keep it simple | Mostly 3 RIR |
| Optional Day D | Arms/Shoulders + easy conditioning (pump + movement) | 3–4 RIR |
Step 3 — Choose Your Next Goal
Good fit: IFX 365 — Phase 03 Performance (hypertrophy).
Good fit: IFX Engine / Hybrid-style program.
Run a smaller deficit (8–12%) and keep strength as the priority.