>Cross Training>Swimming Numbness
I do a lot of swimming (in the pool). I usually mix it up, depending on the day, with a long distance swim only (2000-2400m) or a distance swim (1600/2000m) followed by 100m sprints with rests in between for about 5-700m. I'm trying to work my way up to a 2.4mi non-stop. Lately, I've noticed on my long distance swims passing about 2400m a couple toes on each foot will go numb. During the sprint days this doesn't happen even though I'm covering roughly the same distances. Is this a bad sign of an issue with my breathing and getting enough oxygen or is it just because I'm in the cool water for a long time and the blood flow is just limited to the extremities or is it something else? Anybody else ever have this problem? Should I be worried? Thanks in advance.
I have this issue. All the time. Very frustrating.
I think it's from pushing off the wall.
I can manage it best by focusing on the first 1000 yards (or 1500 yards) by doing a gentle turn at the wall rather than a strong push off the wall.
When I first started swimming (about 9 years ago), I did a lot of swims with continuous effort (ie. straight through 1500 yards, 2000 yards, 2500 yards, 3000 yards). About 5 years ago, I switched to solely interval sessions (ie. 100, 200, 300, 400, 500, 600, 600, 500, 400, 300, 200, 100 for 4200 yards or 250 x 10 for 2500 yards, etc.). I've gained so much more by doing those sessions, and have been able to race faster by focusing on the intervals. For me, in all instances, I "go" on the 2:00 / 100 yard interval, with rests about 18 seconds per 100.
Anyway, regarding the "cramping" in your feet.... try to push off the wall less.
Open water will resolve this, I think.
#1: Do what I can do (250+ training days, 300+ aerobic hours).
#2: Race shape - BUILD aerobic base
#3: Race (Cincinnati MiniMarathon - 3/18, Grand Rapids 70.3 Tri - 6/10, Ironman Florida - 11/2)
Awesome. Thanks for the advice. Good to know it's not just me. I'll give the interval pyramid a try next pool session.