FitBits
March 31, 2004
Exercise
ETC's Review of Exercise Related Research.
Compiled by
Irv Rubenstein, Ph D, CSCS
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Vitamins
A & C
Preserve Anti-Oxidant
Levels in Cardio Athletes
Two groups of athletes
were tested to investigate whether an antioxidant formula
of selenium, vitamin C and vitamin E would help over-trained
athletes preserve adequate antioxidant levels. Seven of these
athletes were supplemented and 10 were placebo-controls .
All did 4 weeks of normal training followed by 4 weeks of
overload training. At the end of the training period, they
were tested before and after a short duathlon test (5k run,
20k cycle, 5k run).
During normal training,
blood levels of antioxidants increased and remained elevated
in the group that took the supplements, but not in the control
group. Post duathlon, the supplement group had reduced levels
of various chemicals that cause muscle damage. It was concluded
that a basic mixture of antioxidants, either from foods or
pills, could maintain antioxidant status during periods of
intense training and competition, alleviating muscle damage.
Commentary:
Much has been done with regard to supplements and DOMS from
strength training. This article demonstrates the possibility
that simple, low-level supplementation may help during intense
cardio training as well.
S.
Palazzetti et al. Antioxidant supplementation preserves antioxidant
response in physical training and low antioxidant intake.
British Journal of Nutrition 91(1): 91-100, 2004
Psychological
Support Helps
Kids Lose Weight
This study was
conducted at a residential treatment center in Belgium. It
evaluated the benefits of moderate caloric restriction, physical
activity, and psychological support for severely obese children
and adolescents. Twenty boys and girls completed the 10-month
program and were tested at four times: baseline, 11 weeks,
24 weeks, and at 33 weeks, the end of the program.
There was a mean
loss of 8.9% fat mass and sub maximal aerobic performance
increased. In addition, maximal performance and peak power
increased as did relative VO2 max. The authors conclude that
a moderate dietary and exercise program, with psychological
support, is effective in reducing body fat and improving fitness
in severely obese children.
Commentary:
This study does not indicate enough to draw firm conclusions.
For example, what is meant by “psychological support”
or “moderate dietary restriction”? Nonetheless,
it does support the idea that weight loss, in this case, for
kids, requires a 3-pronged approach; it may not be enough
to cut calories and turn off the TV.
B.
DeForche et al. Changes in fat mass, fat-free mass and aerobic
fitness in severely obese children and adolescents following
a residential treatment programme. European Journal of Pediatrics
162(9):616-622, 2003
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