Chase Effort, Not a Number: Your Guide to AMRAP

By Katy Loren

Over the course of many years — okay, fine, decades (I’m getting old!) — of interviewing personal trainers, one theme pops up again and again: there’s no “magic number” of reps that guarantees the result you want — whether it’s bigger, stronger, leaner, or somewhere in between. 

So when a workout prescribes 8, 10, or 15 reps, take it as a guideline, not a hard-and-fast rule. Some people thrive on higher-rep sets; others do better going lower and heavier. 

I hear this most when I ask about training to failure — that is, pushing a set until you can’t complete another rep with good form. If you always stop at 10, you might be leaving effective reps on the table. 

Enter AMRAP (As Many Reps As Possible): a simple way to chase effort, not a number.

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As Many Benefits as Possible

AMRAPs shine when time is tight: you chase quality effort and stop when form fades — not when an arbitrary rep target appears in the plan. Depending on the setup, that can mean as many reps in a set or as many rounds of a short circuit as you can manage.

“AMRAP workouts are short, focused, and very customizable,” says Sara Haley, an ACE-certified personal and group fitness trainer, AFPA pre- and postnatal exercise specialist, and former Reebok Master Trainer based in Los Angeles (Instagram @sarahaleyfit). “You can use any exercises for them, making them a wise choice when you want to get the most out of limited time. As a mom of four, I don’t usually have the luxury of long gym sessions, so I stick to workouts that get me results without eating up my whole day.”

British Olympian Samantha Clayton, a Los Angeles–based certified personal trainer and head of content at Sunny Health and Fitness, leans on AMRAPs to build cardiovascular fitness and muscular endurance. “It’s also motivating because progress can be tracked by how many more rounds are completed over time,” she says. “They’re great for conditioning finishers, small-group workouts, or clients who simply enjoy a challenge.”

Bottom line: AMRAPs ask for sustained effort until form breaks down, and the clock supplies the intensity, creating contagious energy in classes and explaining their popularity in CrossFit. 

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AMRAP Do’s and Don’ts

AMRAPs can get intense fast, so they’re not something to lean on every day. “AMRAPs are better saved for days when you want to push harder, either as the main session or a quick finisher after strength work,” says Haley. 

They’re versatile, too: you can slot a single AMRAP set into a workout or run a time-capped circuit for rounds. But they’re not always the right tool. “If you’re new to exercise, AMRAP can make you rush through a set before you’ve learned proper form—a fast track to frustration or injury,” says Haley. “They’re also not ideal if your main objective is building maximum strength or muscle, since those goals usually call for heavier loads and longer rests between sets.”

Clayton adds that AMRAPs aren’t a match for heavy max-strength lifts, high-skill gymnastics work, or any movement where fatigue is likely to compromise form. “Heavy deadlifts, heavy thrusters, and complex barbell lifts are best avoided in AMRAPs unless form and load are comfortably under control,” she says.

AMRAPs are also a no-go when you’re rehabbing an injury, managing chronic pain, or already running hot on stress. “The repetitive, fast-paced nature can make things worse,” Haley says. “I’ve had sessions when racing the clock felt more exhausting than motivating. In those cases, I swapped AMRAPs out for slower, lower-intensity training until I was ready to push again.”

Go for the Goal

Ready to give AMRAP a whirl? Here are two sample routines: one uses a rounds-based AMRAP circuit, and the other folds an all-out-reps set into a traditional strength session.

“When used at the right moments, AMRAPs can be practical, effective, and even fun,” Haley says. “I reach for them when life feels too busy for a long workout — early in the morning before the house wakes up, a small window between errands, or a quick mental reset after a hectic day. These workouts make those minutes count, and sometimes that’s exactly what keeps me consistent.”

Workout Sample #1: Samantha Clayton’s AMRAP Go-To

“I like adding in an AMRAP to the end of a session when I didn’t push hard enough — on days when I want to leave the gym on empty,” says Clayton. This is one of her favorites, a 12-minute “by round” style AMRAP.

Exercise	Reps
Bodyweight “Air” Squat	10
Kettlebell Deadlift	8
Push-up	6

Repeat the sequence as many times as possible for a total of 12 minutes, aiming to maintain quality movement in every round. (Stop if your form degrades too much and call it a day; you can try again for a full 12 minutes next time.)

Workout Sample #2: Upper-Body AMRAP Blast

Exercise	Sets	Reps
Standing Dumbbell Push Press	4	12, 10, 8, AMRAP
Inverted Row	4	12, 10, 8, AMRAP
Elevated Push-Up*	2–3	AMRAP
Dumbbell Overhead Triceps Extension	3	10, 8, AMRAP
Dumbbell Biceps Curl	3	10, 8, AMRAP
Sprinter Sit-Up	2–3	AMRAP

* You can use the same fixed barbell that you use for the inverted row.