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ASSESSING FATIGUE
FITNESS FUNDAMENTALS
Your dog can't tell you when they're tired, frustrated, or hitting their limit, but they show you. Here's what to look for and how to respond.
SIGNS ITS TIME TO END THE SET
SIGN 01
Form is breaking down
The clearest signal that muscles are reaching their limit
Your dog has been executing an exercise cleanly, and then on rep 7, they don't squat as low, start shifting their foot, or lose their posture. That's fatigue talking.
The two-rep rule. Let one bad rep slide, it might be a handling blip or a one-off. Two bad reps in a row? End the set. Their muscles can no longer support correct movement, and continuing doesn't build strength — it builds bad habits and risks injury.
If you have another set planned, watch for the same signs. If form is deteriorating across sets, consider ending the session entirely.
SIGN 02
Hesitation or refusal
When a dog who knows an exercise suddenly doesn't want to do it
If your dog is hesitating, ignoring cues, or flat-out refusing an exercise they've done plenty of times before — take a break. A dog who is physically capable and mentally willing doesn't say no to work they understand.
Consider pain. Hesitation on a known exercise — especially if it's new or sudden — can be a sign of discomfort. Monitor it across sessions and flag it with your vet if it persists.
SIGN 03
Over arousal or frustration
The dog equivalent of a toddler meltdown when they're overtired
Overarousal and frustration can look a lot of different ways- whining, frantic movement, offering behaviors you didn't ask for, pacing, or circling. Before you respond, ask yourself: where are we in this session?
Early in the session
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Try lowering the value of your reward or asking for a simple calm behavior before continuing. High arousal at the start is often about the environment or anticipation, not fatigue.
Late in the session
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This is likely fatigue. Scatter a handful of treats on the floor, let them sniff and find them to down regulate, then wrap up. The session is done.
Teaching something new
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Take a break, toss a few reset cookies, then either try a different teaching method or return to a familiar exercise they know well. If you're late in the session, call it and try again next time.
ABOUT THE REP COUNTS IN OUR PROGRAMS
A note on suggested reps
Our programs include goal rep counts for each exercise, but these are targets, not requirements. They're based on the goal of the program or exercise, and reflect what a dog working at that level should eventually be able to complete with good form.What they are not is a number to hit at all costs. Your dog's fatigue signals, the equipment being used, and where they are in their training journey all matter more than the number on the page.
Meet your dog where they are
Variables that affect how many reps your dog can actually do
Overarousal and frustration can look a lot of different ways- whining, frantic movement, offering behaviors you didn't ask for, pacing, or circling. Before you respond, ask yourself: where are we in this session?
Equipment difficulty — an unstable surface demands far more from your dog than a flat one. If they're fading early, try a more stable variation first and progress the surface as they get stronger.
Range of motion — a full-depth movement is harder than a partial one. Meet your dog at the range they can sustain and build toward the full version over time.
Where they are in training — a dog new to an exercise will fatigue faster than one who's been doing it for weeks. Early in the learning process, fewer clean reps beats more sloppy ones every time.
The day they're having — dogs have off days just like we do. Muscle soreness, sleep, stress, and environment all affect output. Don't force the number on a hard day.
The goal rep is the destination, it likely will not be the starting point. Use fatigue signals to guide each session and adjust variables so your dog can build toward it with quality.
Observation is a skill. The more sessions you log, the better you'll get at reading your dog's signals. You'll start to recognize their personal version of "I'm done" before they even get to two bad reps. When in doubt, end early. A shorter session with great form is always worth more than a longer one where quality fell apart halfway through.