Adaptive hypertrophy training

SAMPLE READOUT

When your main lift stalls.

A lifter whose main lift stops moving. Calyber reads the flat performance and holds load and volume instead of grinding more weight onto a stall.

Sample inputs, real engine. The lifter is fictional; the prescriptions and estimates are the engine's real output. This is a modeled scenario, not a promised result.

Start free See the full block

Sample case file

Upper / Lower, 4 days/week

SituationMain lift stalled

Main decisionHoldHold load and volume through the stall

Weeks

4 / week

Schedule

298

Sets logged

Planned

Deload

Sample lifters

Modeled lifter · Real engine output · Every set inspectable · Not a promised result

The decision

The call this block turns on.

Fixed plan

Add weight on schedule because another week passed.

Calyber

Hold load and volume because the logged reps and estimated strength stopped moving.

What it sees: Bench Press reps and estimated 1RM flat for three weeks while workload stayed high.

A stall is a signal to stop adding, not a reason to grind heavier.

Calyber recommendation

Week 2 update

Chest

Weekly volume: 8 to 8 sets

DecisionHold volume

Why this changed

The raw feedback pointed toward a volume change, but the engine's priority and recovery rules held the target steady for this muscle.

Recoverable range: MEV 8 to MRV 20 sets
New weekly target: 8 sets

Engine trace available

The block

A stall held, not forced.

Four days a week. When the main lift stopped moving for three weeks, Calyber held load and volume instead of grinding heavier, then closed with a planned deload.

Performance dipHold loadAvoid forced progression

Weeks

4 / week

Training schedule

298

Sets logged

Exercises

Engine changes

Modeled trend

173 → 181 lb

Bench Press estimated strength

Estimated 1RM computed from the logged sets: a strength index, not a loaded bar weight. Modeled from sample inputs, not a promised result.

Timeline

W1Start

W2Build

W3Stall

W4Held

W5Held

W6Deload

Muscle priority map

Emphasized

Primary focus for this block

Chest

Growth

Progressed where recovery allowed

Back/LatsBicepsHamstringsQuadsShouldersTriceps

Maintain

Kept productive without chasing extra fatigue

Calves

Adjustments

What the engine changed, and why.

3 engine moments shaped this block. Open any trace to read the engine's own reasoning, verbatim.

Week 2 · ChestVolume held8 → 8 sets (0/week)
The raw feedback pointed toward a volume change, but the engine's priority and recovery rules held the target steady for this muscle.
▸Engine trace
MEV 8MRV 20
Good stimulus (net=1.0) -> +1 set | Slow-recovery muscle held steady unless under-stimulated [priority=EMPHASIZE, recovery=SLOW, muscle=Chest]
Why the volume held
Week 2 · BicepsVolume raised6 → 7 sets (+1/week)
Biceps recovered well and the sets were productive, so the engine added volume for the next week, bounded by the maximum recoverable volume.
▸Engine trace
MEV 6MRV 16
Good stimulus (net=1.0) -> +1 set [priority=GROW, recovery=FAST, muscle=Biceps]
How the engine decides volume
Week 6 · All musclesDeload
The final week is a planned deload. Volume and load drop so accumulated fatigue clears before the next block.
▸Engine trace
Scheduled deload: target RIR 8, loads capped near 50 percent of peak estimated 1RM.
See the recovery protocol

Stuck does not have to mean guessing. Log a block and see whether Calyber should push, hold, reduce, or deload before you force another bad progression.

Start free

Full log

For lifters who want the receipts.

The complete week by week prescription the engine produced: every set, load, rep target, and RIR. Most visitors do not need this to understand the case. Open it to audit every number.

Simple view above. Audit view below.

▸Open the full 6-week logset by set

W1Target RIR 3

Upper A2026-04-06

EXERCISE	SETS	WEIGHT (lbs)	REPS	RIR
Bench Press (Medium Grip)	4	145	7	nr
Barbell Bent Over Row	4	135	9	nr
Dumbbell Shoulder Press (Seated)	8	50	9	nr
Dumbbell Curl (2-Arm)	6	32.5	10	nr

Lower A2026-04-07

EXERCISE	SETS	WEIGHT (lbs)	REPS	RIR
Barbell Squat (High Bar)	2	205	7	nr
Seated Leg Curl	3	120	11	nr
Standing Calf Raise	4	170	12	nr

Upper B2026-04-08

EXERCISE	SETS	WEIGHT (lbs)	REPS	RIR
Bench Press (Incline, Medium Grip)	4	115	8	nr
Seated Cable Row	4	150	10	nr
Cable Triceps Pushdown (Rope)	6	60	12	nr

Lower B2026-04-09

EXERCISE	SETS	WEIGHT (lbs)	REPS	RIR
Leg Press	2	290	10	nr
Stiff-Legged Deadlift	3	165	9	nr
Leg Extension	2	130	13	nr

W2Target RIR 2

Upper A2026-04-13

EXERCISE	SETS	WEIGHT (lbs)	REPS	RIR
Bench Press (Medium Grip)	4	145	8	nr
Barbell Bent Over Row	4	135	10	nr
Dumbbell Shoulder Press (Seated)	8	50	10	nr
Dumbbell Curl (2-Arm)	7	32.5	11	nr

Lower A2026-04-14

EXERCISE	SETS	WEIGHT (lbs)	REPS	RIR
Barbell Squat (High Bar)	2	205	8	nr
Seated Leg Curl	3	120	12	nr
Standing Calf Raise	4	170	13	nr

Upper B2026-04-15

EXERCISE	SETS	WEIGHT (lbs)	REPS	RIR
Bench Press (Incline, Medium Grip)	4	115	9	nr
Seated Cable Row	4	150	11	nr
Cable Triceps Pushdown (Rope)	6	60	13	nr

Lower B2026-04-16

EXERCISE	SETS	WEIGHT (lbs)	REPS	RIR
Leg Press	2	290	11	nr
Stiff-Legged Deadlift	3	165	10	nr
Leg Extension	2	130	14	nr

W3Target RIR 2

Upper A2026-04-20

EXERCISE	SETS	WEIGHT (lbs)	REPS	RIR
Bench Press (Medium Grip)	4	145	9	nr
Barbell Bent Over Row	4	135	11	nr
Dumbbell Shoulder Press (Seated)	8	50	11	nr
Dumbbell Curl (2-Arm)	8	32.5	12	nr

Lower A2026-04-21

EXERCISE	SETS	WEIGHT (lbs)	REPS	RIR
Barbell Squat (High Bar)	2	205	9	nr
Seated Leg Curl	3	120	13	nr
Standing Calf Raise	4	170	14	nr

Upper B2026-04-22

EXERCISE	SETS	WEIGHT (lbs)	REPS	RIR
Bench Press (Incline, Medium Grip)	4	115	10	nr
Seated Cable Row	4	150	12	nr
Cable Triceps Pushdown (Rope)	6	60	14	nr

Lower B2026-04-23

EXERCISE	SETS	WEIGHT (lbs)	REPS	RIR
Leg Press	2	290	12	nr
Stiff-Legged Deadlift	3	165	11	nr
Leg Extension	2	130	15	nr

W4Target RIR 1

Upper A2026-04-27

EXERCISE	SETS	WEIGHT (lbs)	REPS	RIR
Bench Press (Medium Grip)	4	145	9	nr
Barbell Bent Over Row	4	135	12	nr
Dumbbell Shoulder Press (Seated)	8	50	12	nr
Dumbbell Curl (2-Arm)	9	35	11	nr

Lower A2026-04-28

EXERCISE	SETS	WEIGHT (lbs)	REPS	RIR
Barbell Squat (High Bar)	2	205	10	nr
Seated Leg Curl	3	120	14	nr
Standing Calf Raise	4	170	15	nr

Upper B2026-04-29

EXERCISE	SETS	WEIGHT (lbs)	REPS	RIR
Bench Press (Incline, Medium Grip)	4	120	9	nr
Seated Cable Row	4	152.5	11	nr
Cable Triceps Pushdown (Rope)	6	60	15	nr

Lower B2026-04-30

EXERCISE	SETS	WEIGHT (lbs)	REPS	RIR
Leg Press	2	292.5	11	nr
Stiff-Legged Deadlift	3	165	12	nr
Leg Extension	2	132.5	14	nr

W5Target RIR 0

Upper A2026-05-04

EXERCISE	SETS	WEIGHT (lbs)	REPS	RIR
Bench Press (Medium Grip)	4	145	9	nr
Barbell Bent Over Row	4	140	11	nr
Dumbbell Shoulder Press (Seated)	8	52.5	11	nr
Dumbbell Curl (2-Arm)	10	35	12	nr

Lower A2026-05-05

EXERCISE	SETS	WEIGHT (lbs)	REPS	RIR
Barbell Squat (High Bar)	2	210	9	nr
Seated Leg Curl	3	120	15	nr
Standing Calf Raise	4	172.5	14	nr

Upper B2026-05-06

EXERCISE	SETS	WEIGHT (lbs)	REPS	RIR
Bench Press (Incline, Medium Grip)	4	120	10	nr
Seated Cable Row	4	152.5	12	nr
Cable Triceps Pushdown (Rope)	6	62.5	14	nr

Lower B2026-05-07

EXERCISE	SETS	WEIGHT (lbs)	REPS	RIR
Leg Press	2	292.5	12	nr
Stiff-Legged Deadlift	3	170	11	nr
Leg Extension	2	132.5	15	nr

W6DELOADTarget RIR 8

Upper A2026-05-11

EXERCISE	SETS	WEIGHT (lbs)	REPS	RIR
Bench Press (Medium Grip)	2	90	30	nr
Barbell Bent Over Row	2	90	30	nr
Dumbbell Shoulder Press (Seated)	4	35	30	nr
Dumbbell Curl (2-Arm)	5	22.5	30	nr

Lower A2026-05-12

EXERCISE	SETS	WEIGHT (lbs)	REPS	RIR
Barbell Squat (High Bar)	1	130	30	nr
Seated Leg Curl	2	85	30	nr
Standing Calf Raise	2	120	30	nr

Upper B2026-05-13

EXERCISE	SETS	WEIGHT (lbs)	REPS	RIR
Bench Press (Incline, Medium Grip)	2	75	30	nr
Seated Cable Row	2	102.5	30	nr
Cable Triceps Pushdown (Rope)	3	42.5	30	nr

Lower B2026-05-14

EXERCISE	SETS	WEIGHT (lbs)	REPS	RIR
Leg Press	1	197.5	30	nr
Stiff-Legged Deadlift	1	110	30	nr
Leg Extension	1	95	30	nr

Generated by Calyber's training algorithm from authored sample inputs: logged sessions and session feedback for fictional sample lifters. No real person's data appears on this page. Algorithm version v1.2.0.

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