Here is one of the archived newsletters from Topend Sports. Sign up to receive the latest sports and science news direct to your email inbox. See more archived newsletters.
Fitness Testing Newsletter: 8 June 2007
Hi and welcome to another fitness testing newsletter.
In this issue:
Testing in the heat
New Test Description: 3-cone drill
New to the site
About this Newsletter
Testing in the Heat
With summer arriving in many parts of the world (though unfortunately not where I am), you should be considering the effect of
environmental conditions on test results. If you conduct fitness
tests outdoors, you should be aware of the WBGT index. The WBGT is
composed of three elements Tw, Tg, and Ta which are combined into a
weighted average to produce the WBGT. Using WBGT, you are able to
quantify the effective heat load on the subjects. Environmental
conditions should be controlled where possible, but if not you should
always record the environmental conditions accurately with the test
results to aid in the interpretation.
The Equation:
WBGT = (0.7 × Tw) + (0.2 × Tg) + (0.1 × Ta)
The natural wet-bulb temperature (Tw), consists of a thermometer with
its bulb covered with a wettened cotton wick supplied with distilled
water from a reservoir. The cotton wick will always be wet, allowing
continuous evaporative cooling of the thermometer's bulb, simulating
the evaporation of sweat. The natural wet-bulb thermometer, like the
black globe thermometer is not shielded from wind or radiation. This
thermometer represents the integrated effect of humidity, wind and
radiation. The black globe temperature (Tg), usually consists of a
150 mm (6 inch) black globe with a thermometer located at the center.
The black globe temperature represents the integrated effects of
radiation and wind. The (shade) air temperature (Ta), consists of a
thermometer shielded from radiation - generally by being placed in a
weather screen. It is the standard temperature normally quoted in
weather observations and forecasts.
https://www.topendsports.com/medicine/wbgt.htm
3-cone drill
The three cone drill is one of the tests used in the NFL (American
National Football League) combine scouting testing regime. It is a
test of agility, where the players have to run around three marker
cones that are placed to form an "L.", with cones at the corner and
at each end, 5 yards apart. For more details see
https://www.topendsports.com/testing/tests/3-cone-drill.htm
For more on the tests that the NFL prospects have to undergo, see https://www.topendsports.com/sport/gridiron/nfl-draft.htm
New to the site
As always the Fitness testing website is evolving. Latest additions
are NFL tests: 3-Cone Drill, 60 yard & 20 Yard Shuttle, drug testing,
Leg Strength, 800m Run, Back Strength, Ab Strength (4 Level),
Medicine Ball Throw Tests, Quadrant Jump Agility Test, Henman Shuttle
Anaerobic Test, Glucose Tolerance Test, Body density information and
equations, Ideal Height & Weight Graph, More body composition
methods: Near Infrared Interactance, TBK, BodPod, TBP, TOBEC, MRI,
CT Scan.
for details see https://www.topendsports.com/testing/
About this Newsletter
This letter is for the current Fitness testing news and latest
information, including notification of updates to the ultimate source
of all fitness testing information, 'Topendsports'. Topics covered
include methods for measuring body fat, shuttle run beep test issues, strength and power testing and much much more.
Thank you for your support of my site.
Rob Wood,
Rob's Home of Fitness Testing
Related Pages
- sign up for the latest newsletters
- See more archived newsletters
Any comments, suggestions, or corrections? Please let us know.
Current Events