Greetings
I am reading a book by Jan Olbrecht, the Dutch physiologist. In the last chapter he talks about using a T-30 test in the abscence of blood lactate testing to determine a swimmers aerobic capacity. He then gives a table to assign a range of 100m workout paces based on the results of the T-30. The whole chart has times for meters not yards. Is there a way to convert the times I am interested in into 100 yard times?
Thanks
Spudfin
Except that one does it differently than the other 4 I tried today. The 4 I tried all gave the same number but the swimmingworld one gave a different number. Strange.
Paul
Former Member
Yes, there are conversion calculators and charts. This topic has been discussed several times here in the past. I did a search on the word "conversion" and came up with a few threads.
Time conversions
forums.usms.org/showthread.php
Are conversion charts accurate?
forums.usms.org/showthread.php
Is the conversion calculator accurate?
forums.usms.org/showthread.php
Anna Lea
All you really need to know is 1 yard = 0.9144 meters. Just multiply the meters time by .9144 and you'll be close. The only other factor is the number of turns. Since you'll do more turns in a T-30 swum in a 25 yard pool versus a 25 meter pool you should be slightly faster in the yards pool, assuming you have good turns. Multiplying by 0.9 will get you pretty close I would guess.
Former Member
Thanks for all the responses. I think I will use the down and dirty 0.9 multiplier as I am using it as a broad indicator for setting my intrinsice(fast) and extrinsic(Pace) workouts in prepping for longer open water swims. I found it interesting all the commentary on flip turns and sdk as I am just incorporating both into my workouts this winter. All good stuff. Great forum.
Thanks again.
Spudfin
it is just math
but other factors come into play like
TURNS and SDKs
as an example here's Neil Walker's
lifetime best times
100 free's
scy 42.35
scm 46.88
LCM 48.55
100 back's
scy 44.92
scm 50.75
LCM 54.58
Now Compare the differences of the differences
100 fr times vs his 100 bk times
100 fr LCM vs SCY
48.55 - 42.35 = 6.20
100 bk LCM vs SCY
54.58 - 44.92 = 9.66
100 fr LCM vs SCM
48.55 - 46.88 = 1.67
100 bk LCM vs SCM
54.58 - 50.75 = 3.83
the difference is because of turns and SDK's
Swimmers can SDK twice as far on
SCY & SCM 100's vs LCM
Turns and SDK make a big difference.
All you really need to know is 1 yard = 0.9144 meters. Just multiply the meters time by .9144 and you'll be close. The only other factor is the number of turns. Since you'll do more turns in a T-30 swum in a 25 yard pool versus a 25 meter pool you should be slightly faster in the yards pool, assuming you have good turns. Multiplying by 0.9 will get you pretty close I would guess.
Turns and SDK make a big difference.
Absolutely, but they are going to make a much bigger difference (percentage wise, anyway) in something like a 100 back than in a timed 30 minute swim. For the purpose spudfin mentioned just multiplying the meter time by 0.9 should give something good to within a second or two per hundred and that should be sufficient.
