Would it be very detrimental to my swimming if I trained and did one of these? Read the book "Born to Run" and really want to do at least one ultramarathon. However, I still want to improve on swimming especially getting better in 100 fly and eventually working up to 200 fly. Thoughts?
Now I can do several repeat 100's before the piano falls (as long as i have a min rest or so in between).
Sounds like you are just about there. Have you tried smaller intervals with less rest? Maybe 8 x 25 on :30 or 4 x 50 on 1:00 (descend). 200 fly is tough at full speed. Developing a quick pace that doesn't burn you out after 100 yards makes it a lot easier. I know what you mean though... fly is much smoother at a faster pace; at least is was for me. Turns out I was using a weaker kick for "easy" fly which ended up killing my momentum and sinking my hips. Now, I kick harder but stretch out and glide more to give my arms more time to recover. It isn't the prettiest stroke but it gets me way past 200 yards without much pain.
Now I can do several repeat 100's before the piano falls (as long as i have a min rest or so in between).
Sounds like you are just about there. Have you tried smaller intervals with less rest? Maybe 8 x 25 on :30 or 4 x 50 on 1:00 (descend). 200 fly is tough at full speed. Developing a quick pace that doesn't burn you out after 100 yards makes it a lot easier. I know what you mean though... fly is much smoother at a faster pace; at least is was for me. Turns out I was using a weaker kick for "easy" fly which ended up killing my momentum and sinking my hips. Now, I kick harder but stretch out and glide more to give my arms more time to recover. It isn't the prettiest stroke but it gets me way past 200 yards without much pain.
