AB Gym Blog

3-Day Full Body Workout Routine for Beginners: The Best Plan to Start this September

A complete full-body training plan organized into 3 days per week, with guided exercises, target sets, reps, and simple progressive overload.

If you just joined a gym this September, you’ve likely seen dozens of complex workout splits online: Push-Pull-Legs, 5-day bro-splits, upper/lower rotations…

For anyone starting out or returning after a long break, exercise science and seasoned coaches agree: a 3-day Full Body routine is hands down the best starting point.

In this article, we explain why full-body training delivers superior results for beginners, and provide your exact, step-by-step exercise plan to get started today.


🏆 Why Full-Body Training Outperforms Muscle Splits for Beginners

  1. Higher frequency with minimal soreness: By hitting the entire body each session, you perform only 1 or 2 exercises per muscle group. This triggers growth without the massive muscle damage (and 5-day limping) caused by doing 16 sets of chest in a single afternoon.
  2. Built-in schedule flexibility: If you plan to train Monday, Wednesday, and Friday, and an unexpected work event comes up on Wednesday, you simply go Thursday or Saturday instead. In a split routine, missing “leg day” throws off your entire weekly progression.
  3. Faster motor learning: Beginners build strength rapidly through neurological adaptation. Practicing a pulldown or squat pattern 2–3 times per week grooved good form far faster than performing it once every seven days.

🗓️ Weekly Schedule Overview

The routine alternates two balanced sessions (Workout A and Workout B) with a rest day in between:

DayWorkoutFocus
MondayWorkout AQuads, Chest, Upper Back, Biceps
TuesdayRestLight walk or active recovery
WednesdayWorkout BHamstrings, Lats, Shoulders, Triceps, Core
ThursdayRestFull rest
FridayWorkout ARepeat Workout A (Next week you start with Workout B)
SaturdayRestFree activity / Leisure
SundayRestRest & recharge

🏋️‍♂️ The Workout Plan: Exercise by Exercise

Workout A: Quad & Push Focus

  1. Leg Press (or Goblet Squat)
    3 sets of 10 to 12 reps (Rest: 90 seconds).
    Tip: Place your feet shoulder-width apart in the center of the sled. Lower with control without letting your lower back peel off the back pad.

  2. Flat Dumbbell Bench Press
    3 sets of 10 to 12 reps (Rest: 90 seconds).
    Tip: Dumbbells provide a more natural, comfortable arc of motion for your shoulders compared to a fixed barbell.

  3. Seated Cable Row (Close-Grip)
    3 sets of 10 to 12 reps (Rest: 90 seconds).
    Tip: Keep your chest tall and pull your elbows toward your hips rather than shrugging into your neck.

  4. Dumbbell Lateral Raises (Side Delts)
    3 sets of 12 to 15 reps (Rest: 60 seconds).
    Tip: Use light weights (5–10 lbs / 2–5 kg) and raise slightly forward in the scapular plane (not straight out to the sides).

  5. Dumbbell Bicep Curls
    2–3 sets of 12 reps (Rest: 60 seconds).


Workout B: Hamstring & Pull Focus

  1. Lying or Seated Leg Curl (Hamstrings)
    3 sets of 10 to 12 reps (Rest: 90 seconds).
    Tip: Position the pad just above your heels. Squeeze for a brief 1-second pause at peak contraction.

  2. Lat Pulldown (Wide or Neutral Grip)
    3 sets of 10 to 12 reps (Rest: 90 seconds).
    Tip: Grip slightly wider than shoulder width. Drive your elbows down toward your pockets without swinging your torso backward.

  3. Incline Dumbbell Press (Upper Chest)
    3 sets of 10 to 12 reps (Rest: 90 seconds).
    Tip: Set the bench to a modest 30-degree incline to emphasize the upper pectoral fibers without overloading front delts.

  4. Tricep Rope Pushdowns
    2–3 sets of 12 to 15 reps (Rest: 60 seconds).
    Tip: Keep your elbows glued to your ribs and spread the rope ends apart at the bottom lockout.

  5. Isometric Plank (Core)
    3 sets holding for 30 to 45 seconds (Rest: 60 seconds).


📈 How to Progress: Double Progression Made Simple

Forget complicated percentage charts. Use the rep range method (Double Progression):

  1. Pick a weight where you can achieve 10 clean repetitions across all 3 sets.
  2. In subsequent workouts, aim for 11 reps, then 12 reps with that exact same load.
  3. Once you can execute 3 sets of 12 reps with perfect form, increase the weight by the smallest increment (e.g., from 20 lbs to 25 lbs, or 10 kg to 12 kg).
  4. With the heavier weight, your reps will naturally drop back to 9 or 10. Build back up to 12, and repeat.

📱 Track Your Sets in Seconds

Trying to memorize sets, weights, and rest intervals while catching your breath between exercises is impossible.

Use AB Gym to log these exercises on your phone with zero ads, offline support, and automatic progressive overload indicators. Let’s make this September count!