Arm Weight Training Program: Biceps and Triceps (4 weeks)

Most intermediate lifters want bigger arms and stall. The cause is almost never the program or the exercises — it's in frequency, weekly volume and progressive overload on the compound movements. This program structures these three pillars over 4 weeks, with 4 dedicated sessions per week.

Before the program, three useful clarifications: real arm anatomy, optimal training frequency and the biceps triceps ratio.

---

Arm anatomy: what you're actually trying to develop

The biceps brachii: 2 heads

The biceps has two heads: the long head (outer, visible when the arm is seen from the side) and the short head (inner, gives the arm thickness seen from the front). Both insert on the forearm and participate in elbow flexion and forearm supination.

The long head is worked with the arm behind the body (incline curl, spider curl). The short head is worked with the arm in front of the body (preacher curl, concentration curl).

A third muscle, the brachialis, located under the biceps, contributes significantly to the visible arm thickness. It's worked with a neutral grip (hammer curl).

The triceps brachii: 3 heads

The triceps takes up 60 to 65% of total arm volume, vs 35-40% for the biceps. That's the data most beginner lifters ignore.

It has three heads:

• ▸Long head: only one crossing the shoulder joint. Worked with the arm overhead (overhead extension).
• ▸Lateral: outer head, visible from the side. Worked with the elbow close to the body (pushdown).
• ▸Medial: inner head, barely visible but essential for strength.

Practical consequence

For visibly bigger arms: prioritize the triceps. The program below dedicates 50% of the volume to it, despite what most mainstream programs suggest.

---

Why a separate arm program

Most classic splits (PPL, upper lower, full body) integrate arm work at the end of the session, after the compounds. Three problems:

1. Accumulated fatigue: the biceps has already worked on pull-ups, the triceps on presses. Isolation sets are less productive.
2. Insufficient volume: a classic PPL allocates 6 to 9 sets per arm per week. To break the 35 cm arm circumference bar as an intermediate lifter, you need 12 to 18 weekly sets (Schoenfeld 2017).
3. No technical focus: impossible to properly feel and contract when tired and stressed by the end of the session.

A dedicated arm program solves these three problems. It's used alongside a main split (upper lower 2 days or full body 2 days) during a 4 to 8-week cycle, then you return to a standard split.

---

The program: 4 sessions per week

Proposed structure:

| Day | Session | Focus | Duration | |---|---|---|---| | Monday | Triceps Strength | 6-8 reps, heavy loads | 50 min | | Tuesday | Biceps Strength | 6-8 reps, heavy loads | 45 min | | Thursday | Triceps Volume | 10-15 reps, pump | 50 min | | Friday | Biceps Volume | 10-15 reps, pump | 45 min |

Wednesday, Saturday, Sunday: rest or other session (legs, back, chest) based on your main split.

Monday session: Triceps Strength

| Exercise | Sets | Reps | Rest | Note | |---|---|---|---|---| | Close-grip bench press | 4 | 6-8 | 2 min | Heaviest triceps compound | | Weighted parallel dips | 4 | 6-8 | 2 min | Bodyweight + weight belt | | Overhead bar extension | 3 | 8-10 | 90 s | Targets long head | | Rope pushdown | 3 | 10-12 | 60 s | Lateral finisher |

Total volume: 14 triceps sets. Load priority on the first two exercises.

Tuesday session: Biceps Strength

| Exercise | Sets | Reps | Rest | Note | |---|---|---|---|---| | Straight barbell curl | 4 | 6-8 | 2 min | Main movement | | Seated dumbbell curl | 4 | 8-10 | 90 s | Stability + range | | Dumbbell hammer curl | 3 | 8-10 | 90 s | Brachialis and long head | | Preacher curl | 3 | 10-12 | 60 s | Short-head finisher |

Total volume: 14 biceps sets.

Thursday session: Triceps Volume

| Exercise | Sets | Reps | Rest | Note | |---|---|---|---|---| | Rope pushdown | 4 | 12-15 | 60 s | Constant tension | | Overhead dumbbell extension | 3 | 12-15 | 60 s | Long-head stretch | | Dumbbell kickback | 3 | 12-15 | 45 s | Max contraction | | Bench dips | 3 | 15-20 | 45 s | Bodyweight finisher |

Total volume: 13 sets. High-rep sets at the end, RPE 8-9.

Friday session: Biceps Volume

| Exercise | Sets | Reps | Rest | Note | |---|---|---|---|---| | Standing cable curl | 4 | 12-15 | 60 s | Constant tension | | Incline dumbbell curl | 3 | 12-15 | 60 s | Long-head stretch | | Concentration curl | 3 | 12-15 | 45 s | Pure isolation | | Rope hammer curl | 3 | 15-20 | 45 s | Brachialis and forearm finisher |

Total volume: 13 sets.

---

Progressive overload on arms: the golden rule

Arms are muscles with short range and long tendon insertion: progressive overload is slower than on heavy compounds. Count on micro-progressions:

• ▸On compounds (close-grip bench press, weighted dips, barbell curl, seated dumbbell curl): +1 to 2.5 kg as soon as all reps of all sets are clean and complete.
• ▸On isolations (pushdown, kickback, concentration curl): +1 rep per set for 2 to 3 weeks, then +1 kg.

Absolute rule: form beats weight. A barbell curl rep with hip swings isn't a rep.

Keeping a training log (manually or via an app like ForgeSport, which does it automatically with weekly RPE-based adaptation) is mandatory to see real progress.

---

Weekly volume: how many sets

Brad Schoenfeld's work (2017) on the dose-response relationship between volume and hypertrophy indicates an optimal volume for most lifters between 10 and 20 weekly sets per muscle group.

For arms specifically:

• ▸Beginner (less than 12 months): 8 to 10 sets/week biceps + 10 to 12 triceps are enough. Beyond, recovery becomes limiting.
• ▸Intermediate (1 to 3 years): 12 to 18 sets/week per arm. The program proposed here is calibrated for this level (14 + 13 = 27 cumulative sets per group).
• ▸Advanced (3+ years): 16 to 22 sets/week, but with variable intensity and programmed deloads every 4 to 6 cycles.

If you go beyond 22 weekly sets on the same group, accumulated fatigue exceeds most natural lifters' recovery capacity (MRV, Maximum Recoverable Volume).

---

Recovery between sessions

Arm muscles generally recover in 48 to 72 hours. The program respects this interval:

• ▸Monday Triceps Strength → Thursday Triceps Volume (72 h recovery)
• ▸Tuesday Biceps Strength → Friday Biceps Volume (72 h recovery)

Careful if you add this program to a main split that already includes pull-ups (stimulates biceps) or presses (stimulates triceps): the real stimulation frequency can go up to 3 or 4 times per week, which becomes excessive. Reorganize the week so compound and isolated arm sessions are separated by at least 24 hours.

---

Nutrition for arm development

No arm specificity: the nutritional principles of overall muscle development apply.

Protein

1.6 to 2.0 g/kg of body weight per day (ISSN Position Stand, Jäger 2017). Spread over 4 to 5 daily meals to maximize muscle protein synthesis.

Quality sources: chicken, turkey, eggs, fish, cottage cheese, legumes, whey protein as a supplement if needed.

Calories

• ▸In a mass phase: +200 to +400 kcal above TDEE. Beyond, fat gain accelerates without extra muscle gain.
• ▸In maintenance: possible to gain muscle (recomposition), but progress is slower.
• ▸In a cut: max deficit 300 to 500 kcal. Beyond, arm muscle mass is targeted first by catabolism (arms are barely used for daily energy compared to legs).

Carbs and fats

Carbs at least 3 g/kg to support training intensity. Fats 0.8 to 1 g/kg for hormonal production (testosterone).

---

The 5 mistakes that sabotage your arm program

1. Too much isolation, not enough compounds

The close-grip bench press, weighted dips and pull-ups build much more arm mass than 10 curl variations. Compounds allow much higher absolute loads, therefore more mechanical tension on the triceps and biceps.

2. Underestimating the triceps

If you do 12 biceps sets and 8 triceps sets per week, you flip the anatomical ratio. For visible arms: minimum 50% of the volume on the triceps.

3. Too much swing on the curl

Torso swinging to generate momentum on the barbell curl cheats resistance and reduces real tension on the biceps. Keep the torso fixed against a wall if in doubt.

4. Neglecting the specific warm-up

Before the first heavy barbell curl set, do 2 warm-up sets at progressive load (50%, 70% of the working load). Same on the close-grip bench press. This prepares the elbows and reduces the risk of tendinitis.

5. Running this program forever

A dedicated arm program isn't a permanent program. It's used for 4 to 8 weeks maximum to catch up a weak point, then you return to a standard split (PPL, upper lower, full body) which integrates arms in normal volume. Holding 6 months on a specialization program leads to local overtraining.

---

Biomechanical alternatives: BioSwitch

On every exercise in the program, if you don't have the exact equipment (machine taken at the gym, no dumbbell heavy enough at home, pain on a specific movement), you can substitute with a biomechanically equivalent variation.

ForgeSport integrates this logic directly: the BioSwitch button offers 2 to 4 alternatives for each exercise, with load automatically recalculated. A few key substitutions for this program:

• ▸Close-grip bench press → weighted parallel dips or neutral-grip dumbbell press
• ▸Straight barbell curl → EZ bar curl (more comfortable wrist) or alternating dumbbell curl
• ▸Rope pushdown → overhead dumbbell extension or cable kickback
• ▸Preacher curl → spider curl (incline bench face down)

More details on the biomechanical alternatives logic in the ForgeSport glossary.

---

Conclusion: 4 weeks, then evaluate

At the end of the 4 weeks of this dedicated arm program, measure:

• ▸Cold contracted arm circumference (tape measure, arm at 90 degrees, max contraction)
• ▸Load on the barbell curl 6 reps
• ▸Load on the close-grip bench press 6 reps
• ▸Load on the weighted dips 6 reps

A gain of 0.5 to 1 cm of arm circumference + 5% load on compounds is a typical result over 4 weeks of a specialized program. Beyond that, it's exceptional.

Then: back to a main split for 6 to 8 weeks minimum before restarting an arm specialization cycle. Periodizing specialization cycles is what enables long-term progress without local overtraining.

To generate an adaptive program that integrates optimal frequency and volume based on your real performance (without having to calculate everything manually), create your ForgeSport account for free: 5 questions, program built in 30 seconds, automatic weekly adjustment based on your RPE.