My first (light) samba?

[glubglub]

I was doing my 50m dynamic with mono in my normal 1 minute-ish. Which is slow, I know, which I blame on my poor finning posture.

I've been fin swimming between 2.5 - 3k / day for three days in a row now, mostly to take advantage the pool schedule of 50m long course before they will convert back to 25 yards lane next week!

My Monday was great, I easily did at least a dozen times of 50m dynamic. I came in Tuesday with slightly worse maybe 8-9 successful 50m dynamic. Today, though, I had trouble concentrating because I had to share a lane with at least one or two lap swimmer(s), and I only did 5 50m dynamics, with 3 of em I actually had samba at the end. First just the legs/thigh, then a stronger one on the legs and a little on the back, and finally it was close to full body shake. Not the neck or head, though.

It was a rather funny feeling, I surfaced, I felt fine (not dizzy, brownout, etc), but maybe 2-3 seconds later my legs, back and abs started shaking uncontrollably for another 2-3 seconds.

Anyway, here are my questions:

1. How far was I from actual blackout when I experience samba at the end of a swim? I didn't hyperventilate.

2. Can samba be caused by simple exhaustion, i.e. could it simply be because my muscles were lactic?

Thanks!

 

[Rik]

Question 1: How far was I from actual blackout when I experience samba at the end of a swim? I didn't hyperventilate.

Loss of motor control often develops in individual patterns. How it is presented is dependent of the location in the brains where the hypoxia becomes acute. Other factors that influence the development into a black-out is the rate of oxygen consumption during the loss of motor control and other factors that primarily caused the event to occur.

While hyperventilation in itself is an important cause of loss of motor control or a black-out, it is not the only one. For example, a relative shortage of hypocapnia can also be caused by prolonged fasting in combination with exercising.

Question 2. Can samba be caused by simple exhaustion, i.e. could it simply be because my muscles were lactic?

Yes. Loss of motor control can be caused by anything that can cause an increase in burning oxygen, including but not limited to both acute as chronic exhaustion.