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The 4-Day Upper/Lower Split

An eight-week upper and lower body gym routine covering major movement patterns twice each week. It includes four workouts, exercise substitutions, warm-up and rest guidance, beginner adjustments, a shorter session option, gradual progression, recovery rules, and an eight-week review point.

or get coached through it

This eight-week split builds steady strength across four weekly workouts while leaving room for recovery.

Weekly Training Rhythm

Follow the workouts in order and keep no more than two lifting days together.

Eight-Week Progression

Build reps with controlled form before adding the smallest practical amount of weight.

Run Each Session

The listed sets are work sets, so complete warm-up and practice sets separately.

Warm Up First

Spend 5 to 10 minutes walking, cycling, or rowing, then rehearse the day with controlled squats, hinges, or band pull-aparts.

Practice The Lift

Before the first exercise, do 8 to 10 reps with an empty bar, 5 reps near half weight, and 2 to 3 reps near working weight.

Keep Reps Available

Finish with 2 to 3 sound reps in reserve and stop when range shortens or position changes.

Use Full Rest

Rest 2 to 3 minutes after the main lift, 90 to 120 seconds after secondary lifts, and 60 to 90 seconds after isolation work.

Keep Choices Stable

When alternatives are listed, choose one movement and stay with it for several weeks.

Use Short Sessions

For a 45-minute workout, complete the first four exercises and add one more only if time remains.

Progress With Control

More weight is only one form of progress.

Fill The Rep Range

Keep the same load until every work set reaches the top of its range with controlled form and 2 to 3 good reps available.

Add Small Loads

Increase upper-body lifts by 2.5 to 5 lb, lower-body lifts by 5 to 10 lb, or move to the next machine pin.

Count Clean Progress

A cleaner rep, fuller range, or equal work with less strain counts, and extra reps from a shorter range do not.

Preserve The Order

After a missed day, do that workout next; after a missed week, repeat the prior loads or go slightly lighter.

Watch Recovery

Consider an easier week when performance drops for two weeks and heavy-feeling loads, lasting soreness, poor sleep, or joint discomfort appear together.

Movement Choices

Use these substitutions when the main option does not suit your setup, then keep the choice consistent.

Upper A

Lower A

Upper B

Lower B

Train With Care

Pain Needs Attention

Review the plan before eight weeks if an exercise causes pain or the schedule clearly does not fit.

Check Health Concerns

Speak with a qualified health professional before starting if you have a chronic condition, injury, or unexplained symptoms.

How BodyBuddy works

  1. 1Start the plan.
  2. 2BodyBuddy texts you every day to keep you on track.
  3. 3Actually finish what you started.

What the texts feel like

Week 1 · getting started

Today 7:42 AM

Week 4 · missed day

Today 7:42 AM
week 4 and Lower A slipped. can you pick it up today and keep the sequence?
ugh I felt like I’d already ruined the week
you haven’t just take Lower A next
Later
did you make it through squats and hinges?

Week 8 · the review

Today 7:42 AM
week 8 already. want to review your exercise choices and how the schedule felt?
kind of proud and surprised I stayed with it
you earned that tomorrow we map what continues
Later
what felt strongest when you looked back?

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