MariposasWarm-Up
A warm-up is the preparatory phase at the start of a workout, designed to gradually raise your heart rate, increase blood flow to working muscles, and bring your body temperature up before more demanding effort begins. The goal is to prime the neuromuscular system, meaning the connection between your brain and your muscles, so movement feels more coordinated and force production is more efficient once the real work starts. Most warm-ups combine light aerobic activity with mobility or activation drills specific to the movements you're about to do. The biggest misconception is that stretching and warming up are the same thing. Static stretching alone (holding a stretch for 20 to 30 seconds) does not raise core temperature and can temporarily reduce muscle force output, which is why most coaches now favor dynamic movement patterns during this phase. A well-designed warm-up is specific: someone about to squat heavy will benefit far more from hip circles, bodyweight squats, and a few lighter loaded sets than from five minutes of jogging and toe touches.
Example
Before a barbell back squat session, a lifter might spend eight to ten minutes doing leg swings, goblet squats with a light kettlebell, and a few sets of the squat itself at 40 to 60 percent of their working weight. By the time they load the bar fully, their hips are mobile, their glutes are firing, and their nervous system has already rehearsed the movement pattern. The actual working sets feel smoother and the risk of a positional breakdown in the first rep drops noticeably.