Wave and kick work alone, but together it all falls apart? Here's how to bring arms, breathing and legs into the right timing.
Sound familiar: "Wave works, kick works — but the moment I add arms, everything falls apart. What am I doing wrong?" The honest answer: it's almost never strength, it's timing. Butterfly doesn't alternate like other strokes — it runs on a fixed cycle: two kicks per arm stroke, one kick as the hands enter, a second as the hands finish the pull. Miss that timing and your hips won't rise high enough to bring the arms back over the water — the whole stroke collapses, no matter how strong you are.
The first kick is more of a balancing move: it comes from the hips swinging up as the hands are entering, stabilizing your body position for the start of the pull. The second kick delivers the decisive push: it coincides with the end of the pull and lifts the hips right as the arms leave the water and swing back over the surface. Without that second kick, you're missing the momentum you need for the recovery — you sink like a car that disengages the clutch mid-acceleration.
The good news: this timing can be built in clear stages instead of forced all at once.
Before adding arms, the two-kick rhythm from wave and kick (see previous guides) needs to be solid. Practice it on the kickboard until it runs automatically, without conscious counting.
Swim short 10-meter stretches with the full arm pull, face down, without breathing — just exhale underwater. Focus on one thing only: kick as the hands enter, second kick as the pull ends. Deliberately remove breathing so you only have to solve one problem cognitively at a time.
Only once kick timing is solid without breathing do you add breathing (details in the next guide). Start breathing on every stroke — that's easier for beginners to coordinate than every other stroke, even though advanced swimmers later breathe less often.
Extend the distance to 15, then 20, then 25 meters — but only once the timing holds reliably at the shorter distance. The moment the second kick "disappears" or the hips stop rising, drop back a step.
When the stroke falls apart, ask yourself: does the first kick land exactly as the hands enter? Does the second kick land exactly as the hands finish the pull? The fault almost always sits at one of these two moments, not in missing strength.
Repeat short distances more often rather than grinding through a long lane where your technique collapses after 10 meters — that's exactly what loads the shoulders and lower back the most (more on this in the prevention guide). Take real breaks between repeats until your breathing is calm again before the next attempt.
Count out loud or in your head, "one" on every first kick and "two" on every second. It sounds trivial, but it forces your brain to actively track the rhythm instead of just hoping it happens — a trick many coaches use to fix timing problems in a single session.
Usually it's missing two-kick timing: one kick as the hands enter, a second as the pull ends. Without the second kick, the hips don't rise high enough for the arm recovery, and the whole cycle collapses.
Wave and kick isolated first, then arms without breathing, then breathing added, and only then increasing distance. Each building block sits before the next is added — butterfly is learned in stages, not all at once.
Start by breathing on every stroke — that's easier to coordinate at first. Advanced swimmers later deliberately reduce breathing frequency to hold pace (more on that in the next guide).
10 to 15 meters before you extend. Once the timing holds reliably at that length, stretch it out in small steps — never at the cost of technique.
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