Quick Answer: Glute activation exercises before leg day (banded glute bridges, clamshells, lateral walks) increase neuromuscular readiness in the glute muscles, which improves how much they contribute to compound lifts like squats and deadlifts — without this priming, quads and lower back often compensate for underactive glutes, especially in people who sit for long stretches during the day.

The muscles targeted on leg day and the muscles doing the actual work aren’t always the same thing without a few minutes of setup first.

Why would glutes need ‘waking up’ before a workout at all?

Extended sitting, common in most daily routines, places the glutes in a lengthened, underused position for hours at a time, which can temporarily reduce their neuromuscular activation — the nervous system’s readiness to fire that muscle quickly and strongly. This isn’t a strength loss, it’s a temporary activation dip that a few minutes of targeted movement reliably reverses.

What happens during a squat if glutes aren’t properly activated first?

When glute activation is low, the body compensates by relying more heavily on the quads and lower back to complete the same squat pattern, which can both reduce how effectively the workout builds glute strength and increase strain on muscles that weren’t meant to carry the majority of the load.

How much activation work is actually necessary before leg day?

Research and practical coaching experience generally point to 5-8 minutes of light activation work — banded glute bridges, clamshells, lateral band walks — being enough to meaningfully improve glute engagement in the main lifts that follow, without adding meaningful fatigue that would compromise the heavier work ahead.

TL;DR:

• Extended sitting can temporarily reduce glute neuromuscular activation
• Underactive glutes shift compound lift workload onto quads and lower back instead
• 5-8 minutes of banded activation work meaningfully improves glute engagement
• This is priming, not fatigue — it shouldn’t compromise the heavier lifts that follow

A short activation routine before leg day is a low-cost way to make sure the muscles you’re training are actually the ones doing the work.