Mobility after lifting: what the ten minutes should contain

Ten minutes of static stretching after a lifting session, not before it, matched to the day you just trained rather than a generic list. Compound runs one mobility block per day, six to seven movements held for 25 to 60 seconds each with zero rest between sets, so it runs straight through the moment the last set is racked.

Should you stretch before lifting or after it?

After. Static stretching held long enough to matter also costs you force on the set that follows it, and that cost disappears the instant your working sets are done.

A 2012 systematic review of 106 studies on acute static stretching found the effect on maximal muscle performance is dose-dependent, not fixed. Stretches under 30 seconds showed no real effect on force output (pooled estimate of roughly negative 1 percent). Stretches of 30 to 45 seconds were still not significantly detrimental. Past 60 seconds, a significant drop in force or power became likely, and the longer the hold went, the larger and more consistent the drop. The evidence is not a blanket warning against stretching; it is a specific one against long holds shortly before you need force.

Compound's mobility holds run up to 60 seconds, which is exactly the range that carries a real cost before a lift and none after one. The session is already over by the time you reach it, so the only thing at stake is how the next ten minutes are spent, not how the next set goes. Warming up is a different question with a different set of answers, covered on its own: what actually belongs in a warm-up.

There is also a timing argument for after, not just an absence of cost. Muscle is warmest right after a session, from the sets themselves and from a raised heart rate. That is the one point in the day when a long static hold is free rather than a small tax on force you are about to need.

What does static stretching actually do?

It increases range of motion, mostly by raising your tolerance for the stretch, not by permanently lengthening the muscle. That is a smaller claim than "flexibility" usually implies, and it is the honest one.

A widely cited 2010 review examined the competing explanations for why stretching increases range of motion. Muscle does lengthen briefly during a hold, from the tissue's viscoelastic properties, but that lengthening is transient. Across a single session and across short programs of three to eight weeks, the review found the increase in usable range is explained mainly by a change in sensation: you tolerate more stretch at the same joint angle, not that the muscle itself got longer and stayed that way. Range of motion gained this way needs to be maintained the same way it was built.

Static stretching after lifting is not well supported for preventing injury or reducing soreness. A Cochrane review pooling 12 randomized studies on stretching and delayed-onset muscle soreness found that stretching, whether done before exercise, after, or both, does not produce a clinically important reduction in soreness. One large field trial in the review found a statistically significant effect, but it amounted to about 4 points on a 100-point soreness scale, which the authors themselves call very small. If you stretch after lifting expecting less soreness tomorrow, the evidence says not to expect much.

The honest case for the ten minutes is narrower than either the soreness claim or the injury claim, and it holds up: range of motion is trainable, and range of motion is what lets you squat to depth, press overhead, and hinge through a full range without compensating somewhere else. Ten minutes four times a week is a cheap way to keep it.

Why is the mobility block matched to the day instead of generic?

Because the muscles that just did the work are the ones that need the stretch, and that is different every day. Four different ten-minute sets of movements, one per training day, not one stretch routine reused four times a week. The split itself, and why it runs pull, push, legs, then auxiliary, is covered separately: the four-day split.

Pull mobility follows a day built around the deadlift, pull-ups, and rows. Its own design note in the code: it exists to "lengthen the lats and arms, decompress the spine the deadlift loaded, and give the grip muscles their only stretch of the week." A day of pulling and gripping closes with the only wrist and forearm stretch in the plan.

Push mobility follows the bench press, overhead press, and dips. It is built to "open the pecs, restore thoracic extension and the overhead range that pressing erodes, then lock the range in with an active finisher." Heavy pressing pulls the shoulders forward over time. The block spends five holds undoing that and closes with an active movement, not another passive hold, to groove the range rather than just visit it.

Legs mobility follows the back squat, the Romanian deadlift, and the Copenhagen plank. It targets "the hips in every direction, the hamstrings after the RDL, the adductors after the Copenhagens, and the deep squat to close." The hamstring stretch and the adductor work are the direct undo of the two exercises that just loaded those muscles under tension.

Auxiliary mobility follows a day of planks, Pallof presses, carries, and neck holds, all isometric bracing against a load. The code's description: the cooldown "moves the spine through every plane it just resisted" and gives "the neck its only stretch of the week." Auxiliary is the single day that trains the neck directly, so it is also the single day that stretches it.

What movements make up each day's block?

Six to seven stretches, chosen to match what that day's lifts just did rather than a list repeated four times a week.

Pull mobility, 6 movements

• Child's Pose Lat Reach, 2 sets of 45 seconds per side
• Open Books, 1 set of 8 reps per side
• Supine Twist, 2 sets of 45 seconds per side
• Bench Hamstring Stretch, 2 sets of 40 seconds per side
• Wall Biceps Stretch, 2 sets of 30 seconds per side
• Wrist Flexor Stretch, 1 set of 45 seconds

Push mobility, 6 movements

• Doorway Pec Stretch, 2 sets of 30 seconds
• Thoracic Extensions over a foam roller, 1 set of 10 reps
• An overhead lat stretch (kneeling or prayer), 2 sets of 30 seconds
• Overhead Triceps Stretch, 2 sets of 30 seconds per side
• An external rotation stretch (dowel or doorframe), 2 sets of 30 seconds per side
• A finisher, shoulder dislocates or wall slides, 1 set of 10 reps

Legs mobility, 7 movements

• Couch Stretch, 2 sets of 45 seconds per side
• A supine hamstring stretch (band or hands), 2 sets of 40 seconds per side
• Figure-4 Stretch, 2 sets of 40 seconds per side
• 90/90 Hip Switches, 1 set of 8 reps per side
• Butterfly Stretch, 1 set of 60 seconds
• Wall Calf Stretch, 2 sets of 30 seconds per side
• Deep Squat Hold, 1 set of 60 seconds

Auxiliary mobility, 6 movements

• Decompression Hang, 2 sets of 25 seconds
• Cat-Cow, 1 set of 10 reps
• Sphinx Hold, 1 set of 45 seconds
• Thread the Needle, 2 sets of 30 seconds per side
• Hip Flexor Stretch, 2 sets of 30 seconds per side
• Neck Stretches, 4 sets of 25 seconds: left, right, left, right

How long should each hold be?

25 to 60 seconds, and most movements run two sets per side rather than one. That is the plan's own range: long enough for a hold to be worth doing, short enough that six or seven of them still add up to about ten minutes rather than twenty. Every set runs at zero rest, so time under stretch is the whole ten minutes, not ten minutes plus rest.

Because the block comes after the session, none of the acute force-loss concern from longer holds applies here. The 60-second holds that would be worth avoiding before a working set, like the Deep Squat Hold or the Butterfly Stretch, are exactly the ones placed at the end, once nothing heavier is coming.

What happens if you skip mobility?

Nothing is lost from your training record, but the block is on by default for a reason. Mobility can be switched off entirely in settings, and the app will not stop you.

Mobility cannot stand in for the lifts. A session that logs only mobility with no sets on any lift still saves and still shows in your training log, because walking through the stretches is real work and the app records it. But it does not count as a trained day: it will not advance the pull, push, legs, auxiliary cycle, will not mark the day done, and will not bank a day on your consistency score. Those three things are earned by the lifts, not the cooldown.

What does Compound do about mobility?

Mobility is on by default after every session, matched to the day, and can be turned off in settings if you would rather skip it. Nothing about it is dressed up as more than it is: it is a range-of-motion habit, ten minutes, run automatically so the choice of what to stretch is never left to whatever you remember on the way out of the gym.