FitBits
May 31, 2004
Exercise
ETC's Review of Exercise Related Research.
Compiled by
Irv Rubenstein, Ph D, CSCS
Correspondence
Course Sale
Strength Ball Training
Reg $69.00; SALE $49.00
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This
special is available only on our secure web site at: www.exerciseetc.com/specials.html
Summer
Personal Trainer
Exam Prep Schedule Announced
Exercise
ETC will be offering our popular ACE exam prep programs again
this summer. These programs are especially designed to prepare
you for the ACE personal trainer exam, including the brand
new “written simulation” component. This exam
prep program is so successful that we guarantee if you don’t
pass the ACE exam after taking our course, you can retake
the training course for free. For details, visit our web site
at www.exerciseetc.com
or call us at 1-800-244-1344. We’ll be offering the
ACE Prep Course this summer in these cities:
Atlanta
Boston
Chicago
Cincinnati
Detroit
Ft Lauderdale
Houston
Los Angeles
New York City
Portland, OR
San Francisco
St. Louis
Tucson
Washington, DC
For
more information on Exercise ETC,
our
programs and materials, visit our
web site at
www.exerciseetc.com
Exercise
ETC Inc.
2101 North Andrews Ave. #201
Fort Lauderdale, FL 33311
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Warm-up
More Important
Than Stretching For Sports Injury Prevention
The results of
a recent meta-analysis showed that stretching does not reduce
the risk of injury from fitness activities, but this report
is based on a systematic review of the literature to determine
the effectiveness of stretching on sports injury risk reduction.
While there are benefits to be gained from flexibility training
(such as increased ROM) some studies have found that stretching
does not improve and may actually detract from athletic performance
except for those sports where flexibility is an essential
component of the performance, (such as dance, gymnastics,
diving, etc.) Moreover, the optimal way to stretch is still
unknown. Most studies support 15-30 seconds of passive static
stretching, but different variables prevent conclusive support
for this type of training. This study concluded that since
most injuries occur from eccentric contractions within the
normal range of motion, warm-up, not stretching, seems to
be more effective in injury prevention.
S.B.
Thacker et al. The impact of stretching on sports injury risk:
a systematic review of the literature. Medicine & Science
in Sports & Exercise 36(3):371-378, 2004
Eccentric
Hamstring
Training May Prevent Injury
The high incidence
of reinjury to the hamstring muscles that have been strained
is a concern to athletes, coaches and trainers alike. No studies
have yet to show why some people strain their hamstring: is
it lack of flexibility? Lack of strength? Lack of a warm-up?
What is known is that the hamstrings are strained during forceful
eccentric contractions. This study compared the hamstring
and quadriceps strength curves of 18 non-injured and 9 injured
athletes. This study suggests that injured hamstrings can’t
produce as much force when lengthened, probably due to scar
tissue build-up. The authors recommend eccentric training
to prevent and rehab hamstring injuries.
C.L.
Brockett et al. Predicting hamstring strain injury in elite
athletes. Medicine & Science in Sports & Exercise
36(3):379-387, 2004
For
more information on Exercise ETC, our programs and materials,
visit our web site at
www.exerciseetc.com
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