8,101
edits
Changes
From Fellrnr.com, Running tips
m
comment: batch update
* LCHF had problems completing the training, complaining of higher perceived effort and inability to complete the training sessions. (Adaptation period?)
* The oxygen cost of exercise was higher in the low carbohydrate group than a high carbohydrate group, while the periodised carbohydrate group had a slightly lower oxygen cost and the high carbohydrate group.
* The subjects performed the simulated race before and after the dietary intervention. The race times were improved in the high carbohydrate group by an average of 190 seconds (114-266) and in the periodised carbohydrate group by 124s (62-186). However, the low carbohydrate group was slower by an average of 23 seconds (162faster-208, a range that makes no sense and I've queried with the authorsslower). It looks like the low carbohydrate athletes increased their [[VO2max|V̇O<sub>2</sub>peak]] at the end of the study, but this increase was negated by the impaired economy of higher oxygen cost of exercise.(Note that figure 4 on the early copies of the PDF is wrong on the performance for the low carb group, something I confirmed with the authors.)
* The low carbohydrate group burned more fat during the end of study tests by a rather dramatic amount.
=Phinney's Study of Elite Cyclists=
* Muscle [[Glycogen]] levels where higher before the endurance test on the normal diet than on the [[Ketogenic Diet]] (143 and 53 respectively). Both tests had similar muscle glycogen levels after the endurance tests. It is interesting to see that muscle glycogen levels were replenished somewhat on the [[Ketogenic Diet]], even though the subjects continued normal training for the four weeks.
{| class="wikitable"
!
! Endurace-1
! Endurance-2
|-
| Average
| |
| 4%
| |
| -63%
| 75.5
|
| -24%
| 10%
| -38%
| |
| 2%
|
|-
| Exclude WB
| |
| 13%
| |
| -65%
| 73.8
|
| -24%
| 12%
| -41%
| |
| -1%
|
