Tempo: How Fast Should You Lift Weights?

Tempo describes the speed at which different parts of a repetition are performed.

Sometimes we'll deliberately change tempo to emphasise a particular part of an exercise, practise control, introduce pauses or encourage you to move with maximum intent.

Other times, you can just lift the bloody thing.

Not every exercise needs a complicated tempo prescription.

THE DIFFERENT PARTS OF A REP

A repetition can broadly be divided into:

Eccentric — the muscle is lengthening under load.

Bottom / stretched position — the transition between lowering and lifting.

Concentric — the muscle is shortening as you produce force.

Top / contracted position — the transition before beginning the next repetition.

Take a squat.

Lowering into the squat is the eccentric portion.

The bottom of the squat is the stretched position.

Standing back up is the concentric portion.

Then you begin the next rep.

Understanding these terms makes prescribed tempos much easier to follow.

STANDARD TEMPO

Unless your programme says otherwise, you generally don't need to count every second of every repetition.

For most strength training, use a controlled eccentric and perform the concentric with deliberate intent.

In other words:

Control it down.

Lift it up.

Exactly how fast the weight actually moves will depend on the exercise, load and how fatigued you are.

A heavy deadlift isn't going to fly off the floor simply because you're trying to move it quickly.

SLOW TEMPO

Sometimes we'll deliberately slow part of an exercise down.

For example:

4-second squat descent → stand normally

Slower repetitions can be useful for:

Practising control and positioning.

Making relatively light loads challenging.

Spending more time in a particular part of a movement.

Reducing momentum.

Providing variation within training.

But slow isn't automatically better.

If you deliberately make every repetition incredibly slow, you'll generally have to use less weight or perform fewer repetitions.

That's not necessarily a problem—it just means you've changed the exercise.

PAUSED REPS

Tempo can also include a deliberate pause.

For example:

3-second descent → 2-second pause → stand

Pauses can be particularly useful for developing strength and control in specific positions.

A paused squat removes some of the assistance you'd normally get from immediately reversing direction at the bottom.

A paused bench press makes you establish control with the bar on the chest before pressing.

And pauses can be used almost anywhere if there's a reason for them.

The important bit is the last part:

If there's a reason for them.

Don't add pauses everywhere simply because they make exercises horrible.

EXPLOSIVE REPS

Sometimes the goal is to produce force as quickly as possible.

This is better described as explosive intent than simply "fast reps."

Think:

Move the weight as fast as you can while maintaining the movement you're trying to perform.

With a light load, that might actually look fast.

With a very heavy load, the bar might move slowly despite you applying as much force as possible.

Your intent is explosive even if the result isn't.

This can be important when training power and practising forceful lifting.

TEMPO IN CIRCUITS AND CONDITIONING

You don't automatically need to perform repetitions as quickly as possible just because you're doing a circuit.

The appropriate speed depends on the exercise and purpose of the workout.

If you're trying to complete something For Time, speed obviously matters.

But moving faster only helps if you can continue performing the movement effectively.

There's little benefit in absolutely hammering the first 30 seconds of a ten-minute workout before spending the remaining nine and a half minutes reconsidering your life choices.

Move at a pace appropriate to the task.

TEMPO NOTATION

You may sometimes see tempo written as four numbers.

For example:

3-1-1-0

These numbers describe the duration of different portions of the repetition.

A common convention is:

3 — three seconds eccentric
1 — one second in the bottom/stretched position
1 — one second concentric
0 — no pause before the next repetition

So a squat performed at 3-1-1-0 would mean:

Lower for 3 seconds.

Pause at the bottom for 1 second.

Stand in approximately 1 second.

Immediately begin the next repetition.

You may also see X, meaning perform that portion explosively rather than trying to make it last a particular number of seconds.

For example:

3-1-X-0

Control down.

Pause.

Then drive up with maximum intent.

One important caveat: tempo notation isn't completely standardised between every coach, so check how your programme defines it rather than assuming.

WHAT ABOUT TIME UNDER TENSION?

Slower repetitions obviously increase the amount of time a muscle spends producing force during an individual rep.

That's where the phrase time under tension comes from.

But more time under tension isn't automatically better.

You can make a set last longer simply by moving incredibly slowly, but you'll probably have to reduce the load or number of repetitions you can perform.

For building muscle, there's no need to chase the longest possible set.

A range of repetition speeds can work perfectly well.

Tempo is better thought of as another variable we can manipulate, rather than a score where more seconds automatically means more gains.

IN CLOSING

Tempo is simply how quickly you perform different portions of a repetition.

Most of the time:

Control the movement and lift with intent.

Sometimes we'll deliberately slow things down.

Sometimes we'll pause.

Sometimes we'll try to move explosively.

Each changes the exercise slightly and can be useful for different reasons.

But don't make every repetition slow simply because you've heard that time under tension = gains.

Tempo is a tool. Use it when it has a purpose.