Tempo: How Fast Each Rep Should Move

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Tempo is a teaching tool, not a stopwatch. It's there to teach you control and to keep the muscle under tension. It is not there so you can count "one Mississippi" while your form falls apart.

When you see a tempo like 3-1-1-0 in a program, it's describing how a rep should feel: a slow, controlled lowering, a brief pause, a strong lift. Once you've learned that feel, the numbers matter less. What matters is that you own the weight on the way down and move it with intent on the way up.

Think of it like learning to drive. At first you think about every step. After a while you just drive well. Tempo is the driving lesson. Good reps are the driving.

How I want reps to move:

The Lowering: controlled. You decide how fast the weight comes down, not gravity.
The Bottom: no bouncing. Stay tight through the stretch.
The Lift: move it with as much force as you can while keeping your position. It may still move slowly because it's heavy. That's fine.
Between Reps: stop, breathe, reset, then execute the next rep with intent.

Your First Step: On your next set, film one rep from the side. Watch the lowering. If the weight drops faster than you'd be comfortable catching, slow it down.

The Breakdown

How to Read a Tempo Code

Most programs write tempo as four numbers. Each number is the time in seconds for one part of the rep (Wilk et al., 2021):

First Number: the lowering (eccentric) phase.
Second Number: the pause at the bottom.
Third Number: the lifting (concentric) phase.
Fourth Number: the pause at the top.

So 3-1-1-0 on a squat means three seconds down, a one-second pause at the bottom, one second up, and no pause at the top. An "X" in the third spot means explosive: lift it as fast as you can.

On a pull-up or a row, the first part of the rep is the pull, but most coaches still write the lowering first. If a code doesn't make sense, ask.

Why I Use Tempo at All

I love the concept of tempo. I hate actually using tempo codes. When I write anything about rep speed, I really only care about two things: an X when I want a rep explosive, and control when I want you to own the stretch or the squeeze.

I came to that through my own training. I wanted mobility and range of motion. I wanted to keep what I had growing up, even at my heaviest. That pushed me to figure out what I could do with isolation work and how to control each rep.

When I started watching my own form-check videos with a timer on them, I noticed something. I was naturally taking 3 to sometimes 6 seconds on the lowering. I was controlling the weight, and it felt good. The reps where I bounced the bar off my chest, I didn't feel nearly as much. My form got worse and worse, because I didn't have control. I'll call it tempo, but it really comes back to control.

That's what tempo does for you:

It teaches control. A slow lowering forces you to stay in position. You can't cheat a slow negative the way you can cheat a fast drop.
It keeps tension on the muscle. Continuous tension is one of the Five Essentials.
It makes reps comparable. Ten controlled reps this week and ten controlled reps next week tells you something. Ten rushed reps compared to ten slow reps doesn't.

Every lift is a bell curve. You're weak at the beginning, strong in the middle and weak at the end. I'm usually weakest at the end. Sometimes that's a mobility issue, which is why I get mobile, warmed up and activated before I train. Control is how you keep tension through the weak parts instead of skipping them.

Control matters most while you're still learning a lift. Foundation is the first of my 8 building blocks, and it's where a rep that looks the same every time gets built.

So do my Foundation programs write out a tempo? No. I don't want people counting "one Mississippi, two Mississippi" through every rep. It comes down to control and activation, on compound and isolation lifts alike.

This is why I don't want you counting, and it's where I break from a lot of programs. Once you fully understand the concept of tempo, you understand that it means control. It's not a matter of if a working set gets hard, but when. I don't want you staring at a clock and watching the seconds tick by. I want you focused on the lift: the mind-muscle connection and how you feel through the entire range of motion.

Why I Don't Want You Counting

This is where I break from a lot of programs. Once a set gets hard, I don't want you staring at a clock in your head. I want you focused on the muscle and the position.

When the effort is high, your job is simple: control the weight on the way down and move it with maximum force on the way up. If the bar slows down near the end of a hard set, that's not a tempo problem. That's what a hard set looks like.

The research backs up the "move it with intent" part. In one study, two groups trained the bench press for six weeks with the same loads. One group lifted every rep as fast as they could. The other group lifted at half that speed on purpose. The fast-intent group improved their one-rep max by about 18%. The slow group improved by about 10% (González-Badillo et al., 2014). Same weight, same reps. The difference was intent. A heavy set won't move fast, but trying to move it fast still pays off.

What the Research Says About Speed and Growth

If your goal is muscle, the exact tempo matters less than people think. A review of the research found similar muscle growth with reps lasting anywhere from about half a second to eight seconds, as long as the sets were taken hard. Very slow reps, ten seconds or more, looked worse, likely because you can't use enough weight or get enough quality reps (Schoenfeld, Ogborn and Krieger, 2015).

A larger review that looked at both strength and growth landed in a similar place. No single tempo was clearly best for muscle. The approach with the most support was a slower, controlled lowering paired with a faster lift. The authors also pointed out that slowing down too much cuts the reps you can do and makes sets feel harder without adding much (Wilk et al., 2021).

Bro Science Check: "Super-slow reps build more muscle because of time under tension."
What the Research Says: Muscle growth was similar across rep durations from about 0.5 to 8 seconds. Reps slower than about 10 seconds appeared less effective (Schoenfeld, Ogborn and Krieger, 2015). Lifting with maximum intended speed built more strength than lifting slowly on purpose (González-Badillo et al., 2014).
Verdict: Cut. Time under tension is a tool for learning control, not a growth hack. Control the way down, push the way up.

When Tempo Changes

Tempo shifts with the goal and the block:

Learning a New Lift: slower, with pauses, so you can feel each position.
Fixing a Weak Spot: a pause right where you tend to lose position, like the bottom of a squat.
Heavy Strength Work: controlled down, as fast as possible up. Counting goes out the window.
Machines and Isolation Work: a smooth, steady pace with a full squeeze at the top and a full stretch at the bottom.

Common Mistakes

Dropping the weight. If gravity is doing the lowering, you're skipping the half of the rep that teaches control.
Bouncing out of the bottom. A bounce turns the hardest part of the rep into the easiest.
Counting instead of training. If you're more focused on the count than on the muscle, the tempo has stopped helping you.

Putting It Together

Tempo fits inside the bigger picture of how a rep should look. S.S.I. (Setup, Stabilize, Initiate) gets you into position, the Five Essentials keep the rep honest, and tempo teaches you how to move through it.

And remember that a rep only builds you if the set counts. Warm-ups don't, and sloppy fast sets barely do. See What Counts as a Working Set (& What Doesn't), then Rest Between Sets: Your 10-Second Fuel Tank & How Long to Rest for how long to wait before the next one.

Next: Rest Between Sets: Your 10-Second Fuel Tank & How Long to Rest.

Want a program that spells out how every rep should move? Apply for coaching at pastrength.com/apply.