
Originally Posted by
Rich Abrahams
Re my easy swims: this was a result of some testing done in a flume last Dec. conducted by the director of the Exercise and Human Performance Laboratory at the University of Colorado Hospital. I’ve been known to espouse the dictum re masters swimming too fast when they swim slow and too slow when they swim fast….Well, let me tell you that perceived effort can be misleading. During my warm-up swim for the test (4 minutes easy) my HR was 138 and my blood lactate was 2.95. I thought I was going easy, but I wasn’t. I should have been around 125 for HR and under 2.0 for lactate. Also, the tests showed that my lactate clearance times were not fast enough to enable effective intense training sessions. I had to improve my lower level capacity to build to lactate transporter enzymes. This in itself would not improve my racing, but it would enable my training at higher intensities, which would translate to better anaerobic endurance. My “prescription” was to swim at a Z2 level (for me HR of 120-128) 1 or 2 times a week. To quote my report “it is important to be patient at that intensity until lactate oxidation improves.”
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