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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 four-day upper and lower routine trains every major movement pattern twice weekly while leaving room for recovery and steady progress.

Training Week

Follow the four workouts in order and keep lifting streaks to two days or fewer.

Upper A

Monday · 45-70 min

Lower A

Tuesday · 45-70 min

Recovery

Wednesday

Rest fully or choose gentle walking or easy activity.

Upper B

Thursday · 45-70 min

Lower B

Friday · 45-70 min

Recovery

Saturday

Rest, walk, or do comfortable mobility work.

Recovery

Sunday

Rest, walk, or do comfortable mobility work.

Session Method

Warm up first, then complete the listed work sets with controlled technique.

Warm Up Briefly

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

Practice First Lift

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

Leave Clean Reps

Finish each work set with 2-3 sound reps available and stop when range shortens or position changes.

Rest By Lift

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

Keep Choices Stable

When alternatives are offered, choose one suitable exercise and keep it for several weeks.

Level Options

Use the version that matches your current training experience and available time.

Beginner Start

For weeks 1-2, do 2 work sets per exercise, keep 3 reps available, skip the final accessory, and finish near 50 minutes.

Intermediate Plan

Use every listed set, keep about 2 reps available, and finish within roughly 70 minutes.

Short Session

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

Progression Example

Add reps within the range before increasing weight, as shown for bench press at 3 x 6-8.

Build Reps

Week 1 · 135 lb

Complete sets of 8, 7, and 6 reps.

Build Reps

Week 2 · 135 lb

Complete sets of 8, 8, and 7 reps.

Top Range

Week 3 · 135 lb

Complete all three sets for 8 reps.

Add Weight

Week 4 · 140 lb

Begin the new load with sets of 7, 6, and 6 reps.

Progression Rules

Progress can mean more reps, better range, cleaner form, or the same work with less strain.

Earn The Increase

Add weight only when every work set reaches the top of its range with controlled form and 2-3 clean reps available.

Use Small Steps

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

Protect Full Range

Do not increase weight when extra reps came from shortening the movement, and do not expect an increase every workout.

Build Plank Time

Add 5-10 seconds weekly, then choose a harder plank variation after every set reaches 60 seconds.

Recovery Rules

Keep the workout order intact when life or fatigue interrupts the calendar.

Take Easier Week

If several warning signs appear together, keep the exercises, halve the usual work sets, use comfortable loads, and resume gradually.

Watch Fatigue Signs

Look for two weeks of falling performance, unusually heavy normal loads, lingering soreness, poorer sleep, or worsening joint comfort.

Continue The Sequence

After a missed day, do that session next and preserve Upper A, Lower A, Upper B, then Lower B.

Return After Week

After missing a full week, repeat the previous loads or use slightly lighter ones.

Review At Eight

Review the routine after eight weeks, or sooner if an exercise hurts or the schedule clearly does not fit.

Safety Note

Check Health Needs

This is not medical advice, so speak with a qualified health professional before starting if you have an injury, chronic condition, or unexplained symptoms.

Stop For Pain

Do not wait for the eight-week review when an exercise causes pain.

Movement Choices

Choose one option from each tile when the main movement does not suit you, then keep that choice consistent for several weeks.

Upper A

Lower A

Upper B

Lower B

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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