When I swim freestyle continuously above my sustainable speed, the first thing which fails me is my deltoid - when fatigue set in I can no longer do a proper EVF catch and the exit is also affected as well.
However I've heard that the most used muscle in freestyle swimming is the lats, but I feel my lats only when I swim longer than 3k - by that time my deltoid have fatigued so much to the extent that it affects my swimming seriously.
What does the above symptom mean?
Here's a drill that can help with the early vertical forearm aspect of the pull:
www.youtube.com/watch
It allows you to develop balance and strength on both sides of the body and also can work the kick, depending upon the approach you take. Additionally, another great part about this drill is that it allows you to see what you are doing and make adjustments to perform the drill properly.
Good luck!
Here's a drill that can help with the early vertical forearm aspect of the pull:
www.youtube.com/watch
It allows you to develop balance and strength on both sides of the body and also can work the kick, depending upon the approach you take. Additionally, another great part about this drill is that it allows you to see what you are doing and make adjustments to perform the drill properly.
Good luck!