swings

The kettlebell swing should be respected for it's pure simple physical challenge, so we refer to "heavy" as enough weight that you don't have to worry about swinging it over your head (that would be a crescent swing btw ). .
Before you load up on snatches, go back to the swing and refocus on the fundamentals. It's not uncommon to swing 30% more than you can snatch.

Swings are the foundation kettlebell motion.

* Low impact

The fundamental kettlebell motion is the "swing".
This deceptively simple exercise is closely related to the Romanian deadlift; It will
train your Posterior Chain
(lower back,glutes and hamstrings) in a functional, highly aerobic
motion that is an excellent complement to squats.
When we say "swing" we think "snap". Here's the how and why :

1) Standing erect holding a KB with a double overhand grip and your arms straight,

2) Like a pendulum, swing the KB forward and back ramping up each cycle - letting the KB swing between your legs by bending at the