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About iWorx
iWorx
has everything you need to add excitement and distance learning to any
physiology teaching program. Our products include data acquisition
hardware, professionally -developed physiology courseware, innovative
web tools, and a full selection of transducers, cables, front ends and
accessories.
iWorx
One Washington St. Suite 404
Dover, NH 03820
P: 800-234-1757
F: 603-742-2455
info@iworx.com
©
2004 CB Sciences, Inc. Patent pending. iWorx is a trademark of CB
Sciences, Inc. |
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1. Experiment: Grip
Strength and EMG Activity in the Forearm
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The strength of a striated muscle
contraction is directly proportional to the amount of electrical
activity in the muscle. However, it is difficult to quantify the
amount of electrical activity in a muscle unless the raw EMG data
is mathematically transformed. One of the most common
transformations used is the integration of the absolute values of
the amplitudes of the EMG spikes. Through this transformation, it
has been found that the area under the graph of the absolute
integral of the EMG is linearly proportional to the strength of
the muscle contraction.
In this experiment, students will
use a hand dynamometer to measure a subject's grip strength as the
EMG activity of the forearm muscles used to generate the subject's
grip is recorded. The EMG activity will be related to the grip
strength by plotting the maximum grip strength as a function of
the area under the absolute integral of the EMG activity during
the muscle contraction. Data recordings will be made from the
subject's dominant and non-dominant forearms, and the relative
strength and electrical activity of each forearm will be compared
to its diameter. Recordings of prolonged grip strength and forearm
EMG activity will also be made to determine the rate of fatigue in
the dominant and non-dominant forearms.
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2. Information on Finding Federal Grants |
This
is a question that many of our customers have asked the
representatives of iWorx and CB Sciences for years.
Right now, the Internet is the easiest way to find
information on Federal grants.
Most granting agencies have created websites where
solicitations for grant proposals are posted and available for
download. Postings
on these sites often include supplemental information that
assists applicants during the process of composing and
submitting grant applications.
Contact information for the directors of these programs
and their associates are also usually posted on these sites.
More information and
links
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3. Special Offer - Web Teaching Tools CD Now Available
for $150 - expires September 15,
2004 |
The
Tools for Web Teaching CD is a collection of illustrations,
animations and digital videos that can be used by instructors as
part of PowerPoint presentations in lecture or laboratory, or on
course websites. The topics covered by illustrations and
animations include: glycolysis and the Krebs Cycle, nerve
potentials and synapses, cardiograms and blood pressure, muscle
contraction, and much more. Digital movies cover a lot of the
common techniques and preparations used in physiology
laboratory.
All of the items on the CD are
covered by an expanded license, which means these items can be
put on course websites, or copied and distributed to students as
part of their course materials.
The illustrations are
high-resolution jpegs, so they can be viewed on either Macs or
PCs. The animations are Flash files provided in a web-ready
format, but they can also be used on Macs and PCs as
freestanding projections. The movies are extra-clear,
high-resolution mpegs. Complete instructions for using these
documents on the web or in other media are included on the CD,
along with HTML code examples and a full tutorial.
See
the complete list of the animations, illustrations, and movies
included on the Tools for Web Teaching CD
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4. Web Resources |
| Links to
Relevant Physiology Resources and Sites Using the Web for Physiology Teaching.
At
iWorx we believe in the future of the web as a teaching tool.
See what some of your colleagues have done.
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| 5.
Trade-in Specials |
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have recently acquired a large supply of GRASS FT03 variable
range Force transducers and P23id / P23xl reusable pressure
transducers. Many of these items are BRAND NEW and are offered
at up to 75% off original list price. Call for price and
availability but hurry these will go fast. Also check with us
about trade in allowances for your older Powerlab or Biopac
equipment. See
specials
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