FitBits
Exercise ETC's
Review of Exercise Related Research
September 15, 2008
Compiled by Chris Marino, MS, CSCS
Director of Education, Exercise ETC
One
Day Sale:
Save 50% on Correspondence Courses!
www.exerciseetc.com/specials.html
Save 25% on
Continuing Education Webinars!
www.exerciseetc.com/virtual.html
Remember to Exercise or
Exercise to Remember?
The number of Alzheimer’s disease cases is anticipated to quadruple in the next 40 years to over 106 million people worldwide. Although much attention is given to brain activities (i.e. crossword puzzles) for reducing risk of mental decline and Alzheimer’s disease, recent evidence suggests that physical activity may be more effective.
In a study published in JAMA, Australian researchers reported that moderate-intensity exercise improved memory in older adults who presented with prior cognitive impairment. Researchers compared the effects of a 6-month home exercise program to the customary care received for memory problems in 138 patients. The experimental group completed an average of 142 minutes of moderate-intensity exercise weekly, or 20 minutes more daily physical activity than the control group.
In the end, exercisers had better scores on the Alzheimer’s Disease Assessment Scale-Cognitive Subscale (ADAS-Cog), improved their delayed recall, and scored lower on the Clinical Dementia Rating than non-exercisers.
Interestingly, the cognitive benefits received from 24-weeks of regular exercise were sustained for up to a year following cessation of the intervention. Moreover, exercise appears to offer greater benefit than some medications designed to improve cognitive function. The author’s discussion highlighted prior research in which 3 years of medication in patients with mild cognitive impairment offered no improvement.
It was projected that by delaying the onset of Alzheimer’s disease by 1 year we could reduce the total number of cases by nearly 10 million worldwide. Its time to start moving!
Lautenschlager, N.T., et al (2008) Effect of Physical Activity on Cognitive Function in Older Adults at Risk for Alzheimer Disease: A Randomized Trial. JAMA. 300(9):1027-1037.
Preidt,
Robert. (2008) Exercise May Help Prevent Age-Related Memory Loss. Reuters.
September 2.
Is Arthroscopy for Osteoarthritis of the Knee Unnecessary?
Currently over 27 million Americans suffer from Osteoarthritis of the Knee (KOA). Many people with moderate to severe conditions are offered arthroscopic surgery, physical rehabilitation or both as options to ease symptoms. Arthroscopic surgery is a minimally “invasive” procedure during which surgeons “clean up” the joint, removing cartilage and smoothing the surface of the articulating structures.
In 2002, the use of arthroscopic surgery came under fire following the results of a published study that questioned its effectiveness. A study published last week in the New England Journal of Medicine backs up those original findings forcing physicians to reevaluate treatment options.
Researchers at the University of Western Ontario randomly assigned 178 patients to receive arthroscopic surgery and physiotherapy or physiotherapy alone. All patients had previously been diagnosed with moderate to severe osteoarthritis of the knee. Both groups experienced improved symptoms after 2 years however, there was no significant difference. In other words, physiotherapy offered the same benefits as surgery.
Reuter’s Health interviewed a number of medical experts in response to this report who advised that arthroscopic procedures may continue to benefit in certain cases. For example, arthroscopic surgery remains effective when there is a meniscus injury in addition to osteoarthritis. Physicians also remind patients not to confuse arthroscopic surgery with joint arthroscopy, otherwise known as joint replacement.
In a separate study published this month, researchers reported that if you want to avoid KOA you should watch your weight. Researchers at the University of North Carolina determined the relationship of Body Mass Index to KOA. After analyzing data on 3000 people it was determined that obese people had nearly twice the risk of developing KOA over the course of their lifetime compared to normal and overweight counterparts, 64.5%, 34.9% and 44.1%, respectively. Sex, race, nor education level impacted the development of KOA. A history of knee injuries was found to increase risk by ~30% when compared to no history of injury.
Murphy, L., et al (2008) Lifetime risk of symptomatic knee osteoarthritis. Arthritis Care & Research. 59(9): 1207-1213
Kirkley, A., et al (2008) A Randomized Trial of Arthroscopic Surgery for Osteoarthritis of the Knee. New England Journal of Medicine. 359:1097-1107.
Exercise,
Children,
Bones and Gymnastics
A recent study published in the journal Pediatrics indicated that young boys and girls require about 25 minutes of vigorous physical activity every day to optimize bone development. Researchers reported that boys and girls who completed at least 25 minutes of vigorous exercise daily had better bone strength and bone mineral density than those participating in 12 minutes or less did.
Although vigorous exercise in this study referred to brisk walking, running, and jumping, bone mineral density is optimized through both high intensity and high impact forces. In this post-Olympic period one can’t help but envision Gymnastics as the potentially perfect bone constructing, flexibility and strength-building activity. Then again, with great benefit often comes with substantial risk.
A New York Times
article on youth sports referenced a recent study that documented injury
rates in Gymnastics. Emergency rooms see more that 26,000 injuries
attributable to gymnastics annually. Although most are mild soft tissue
injuries, approximately 1/3 are either fractures or dislocations. Overall,
that correlates to 5 injuries per 1,000 gymnasts although the injury statistics
are inflated due to accidents that occur in unsupervised settings. Regardless,
this represents one of the highest injury rates amongst all girls’ sports.
Nonetheless, Gymnastics does offer children a unique experience with significant
potential for well-rounded physical development. Experts recommend
that prospective gymnasts seek out qualified instruction, allow adequate
recuperation between training days, and avoid practicing without supervision
or proper equipment.
Sardinha, L.B., et al (2008) Objectively Measured Physical Activity and Bone Strength in 9-Year-Old Boys and Girls. Pediatrics. 122(3) e728-e736.
Parker-Pope, Tara (2008) Early Focus on One Sport Raises Alarms. The New York Times/Health. Sept 1, 2008
Sweating
Supresses
Asthma
During Exercise
Exercise-induced asthma (EIA) is a rather common obstacle among athletes and recreationally active adults and children. In fact, around 1 in 6 athletes at this summer’s Olympic Games had EIA. EIA is asthma that is triggered by vigorous or prolonged physical exertion and produces symptoms that include shortness of breath, coughing, elevated respiration and possibly wheezing. Interestingly, medical experts and scientists do not completely understand the true etiology of EIA. A recent study may have uncovered an important link.
Researchers at the Naval Medical Center in San Diego have uncovered a connection between sweating and airway secretion: They share the same mechanism.
Fluid secretion rates were assessed in 56 athletes with EIA in response to a drug called pilocarpine by collecting sweat, saliva and tears. Pilocarpine induces sweating and increases saliva production. The researchers used a drug called methacholine to stimulate airway constriction and evaluated forced expiratory volume (FEV) prior to and following administration. FEV represents the amount or volume of air that is moved through the lungs during expiration.
The athletes who showed greatest sensitivity to methacholine were the least responsive to pilocarpine. In essence, with greater airway restriction there was less sweating.
This finding makes a lot of sense. EIA attacks are typically triggered within the first 5 to 20 minutes of activity. Core temperature must build substantially before cooling mechanisms kick in. If intensity is increased too significantly before sweating begins the environment will be primed for airway constriction. Moreover, exercising in cold and dry environments cause a greater frequency of EIA attacks. Both situations result in reduced or delayed sweat production. It has been recommended that sufficiently warming-up, and now more specifically breaking a sweat, will reduce the risk of EIA during exercise.
Park, C., et al (2008) Exercise-Induced Asthma May Be Associated With Diminished Sweat Secretion Rates in Humans Chest. 134:552-558
Recession-Buster
Sale:
1-Day
Only: Friday, September 19
Save 50% on Correspondence Courses!
Our
Correspondence courses are rightfully popular: They offer a mix of state-of-the-art
information at a recession-proof cost. And with free, instant grading
you won’t find a faster turn-around time to get your CEs. Each course
comes complete with a hard or soft-cover manual and separate texting booklet.
Here are some of the titles available; we have even more at:
www.exerciseetc.com/specials.
Nancy
Clark’s
Sports Nutrition Guidebook
Sale:
$89.50, regular $179
Let one of this country's top sports nutrition experts teach you how to get the most out of the foods you choose. Nancy Clark discusses options for food, drink and supplements based on goals and energy needs. Program includes soft-cover textbook, separate testing booklet and free, instant grading. Credits:1.2 ACE; 12.0 AAAI-ISMA; 16.0 ACSM; 8.0 AEA; 12.0 AFPA; 12.0 AMFPT; 16.0 BOC; 2.0 CSCS; 6.0 IFPA; 12.0 ISSA; 16.0 NATA; 8.0 NCSF; 12.0 NDEITA; 12.0 NETA; 8.0 NFPT; 2.0 NSCA-CPT; 12.0 NSPA; 12.0 SCW-EDU; 12.0 SFA; 12.0 WITS.
Facilitated
Stretching
Sale:
$89.50, regular $179
Save 50%! Regular $179.00. This comprehensive guide to flexibility training offers easy to understand language and detailed photographs to explain the art and science of "Assisted Stretching." This book will become a staple in your fitness library. DVD included. Program includes soft-cover textbook, separate testing booklet and free, instant grading. Credits: 1.6 ACE; 16.0 AAAI-ISMA; 16.0 ACSM; 7.0 AEA; 16.0 AFPA; 16.0 AMFPT; 16.0 BOC; 1.0 CSCS; 6.0 IFPA; 16.0 ISSA; 16.0 NATA; 4.0 NCSF; 16.0 NDEITA; 16.0 NETA; 8.0 NFPT; 1.0 NSCA-CPT; 16.0 NSPA; 16.0 SCW-EDU; 16.0 SFA; 16.0 WITS.
Sculpting
Her Body Perfect
Sale:
$39.50, regular $79
SAVE 50%! Regular $79.00. If your female client is not 100% satisfied with her physique, this course will show you how to help her improve muscle tone, sculpt her physique, and tone up hard-to-reach and troublesome body areas. Learn how to build an essential foundation for muscular development and then, with targeted bodysculpting instruction, smooth out any remaining problem areas, for the specific definition she needs to complete her new look. Program includes soft-cover textbook, separate testing booklet and free, instant grading. Credits: 0.6 ACE; 6.0 AAAI-ISMA; 6.0 ACSM; 6.0 AEA; 6.0 AFPA; 6.0 AMFPT; 0.6 CSCS; 6.0 IFPA; 6.0 ISSA; 3.0 NCSF; 6.0 NDEITA; 6.0 NETA; 6.0 NFPT; 0.6 NSCA-CPT; 6.0 NSPA; 6.0 SCW-EDU; 6.0 SFA; 6.0 WITS
Women’s
Strength Training Anatomy
Sale:
$39.50, regular $79
Internationally recognized fitness author and illustrator Frederick Delavier takes you on an insider's view of muscles in action! This electrifying book offers full color drawings of how muscles contract during various exercises, and all the exercises are geared towards the anatomical features unique to women. If your client is trying to tone her body, especially her back, hips, abs and buns this book should be required reading! Softcover, 136 pages with full color illustrations. Credits: 0.5 ACE; 5.0 AAAI-ISMA; 5.0 ACSM; 2.5 AEA; 5.0 AFPA; 5.0 AMFPT; 0.5 CSCS; 5.0 IFPA; 5.0 ISSA; 4.0 NCSF; 5.0 NDEITA; 5.0 NETA; 5.0 NFPT; 0.5 NSCA-CPT; 5.0 NSPA; 5.0 SCW-EDU; 5.0 SFA; 5.0 WITS.
ACSM’s
Exercise for Chronic Diseases & Disabilities
Sale:
$119.50, regular $239
This comprehensive reference gives you the latest ACSM exercise protocol and guidelines for 46 separate chronic diseases and disabilities -- virtually every special population group you can think of. You’ll also appreciate the expanded list of medications and real life case studies. This book from Human Kinetics should be in the library of every serious Fitness Professional. Hardcover, 372 pages. Program includes hardcover textbook, separate testing booklet and free, instant grading. Credits: 20.0 ACSM; 20.0 BOC; 20.0 NATA.
To order these courses
or to see our entire list of 1-day sale courses, please click on: www.exerciseetc.com/specials.
Save
25% on Webinars!
Sale:
$14.99,
Regular $19.99
What’s a “Webinar?"
A webinar is a continuing education course that is conducted over the Internet via our "Virtual Classroom" series. It is conducted in real time and is fully interactive, allowing you to communicate directly with your presenter….instantly! And at only $19.99 per session you won’t find a more cost effective CE program. If you have a computer with a high-speed connection, you have all the equipment you need to join the session! For complete details including course descriptions, instructor credentials and CE awards, or to register for a program, please click on:
http://www.exerciseetc.com/
WEBINAR SCHEDULE: Fall, 2008
Each
webinar is worth
0.2 CECs / 2.0 CEUs
Sale! Each webinar is only $14.99
Guest
Speaker Series (Wednesdays)
These
classes meet from 7 – 9 PM EST (4 – 6 PM PST)
Sept 24: Upper Body Angles, Positions, Variations Guy Andrews, MA
Oct 1: Lower Body Angles, Positions, Variations Guy Andrews, MA
Oct 8: A Strong & Healthy Back Chris Marino, MS
Oct 15: A Dozen New Training Techniques Irv Rubenstein, Ph D
Oct 22: Secrets of Strength & Conditioning Chris Marino, MS
Oct 29: Exercise, Metabolic Syndrome Diabetes Ginger Patterson, Ph D
Nov 5: Healthy Shoulders/ Happy Clients Chris Marino, MS
Nov 12: Supplements & Ergogenic Aids Ginger Patterson, Ph D
Nov 19: Diet, Exercise & Lifestyle Change Ginger Patterson, Ph D
Each on-line program is approved for 0.2 CECs through ACE, CSCS, NSCA and NASM and/or 2.0 CEUs through AFAA, BOC, ISSA, WITS, NCSF and most other certifications.
SAVE!
Each 2-hour module is only $14.99 on
September 19, 2008 only.
For
complete details including course descriptions, instructor credentials
and CE awards, or to register for a program, call 1-800-244-1344 or visit:
http://www.exerciseetc.com/
To
unsubscribe or change your options,
scroll to the bottom of this newsletter
and click on the link.
©
2010 Exercise ETC Inc.
1881 NE 26 Street # 202
Ft. Lauderdale, FL 33305
(p) 800-244-1344
(f) 954-566-3937
info@exerciseetc.com