January Exam Preparation Schedule Available - CSCS, NSCA-CPT, ACE

FitBits
December 31, 2005

Exercise ETC's Review of
Exercise Related Research
Compiled by
Jeannie Patton, MS, CSCS

January Exam Preparation Schedule Available - CSCS, NSCA-CPT, ACE...Click Here.


Testosterone Supplementation Greatly Increases Muscle Size in Elderly Men

Many older adults experience a loss of muscle mass and strength due to deconditioning, illness, injury or major surgery. The purpose of this study was to determine the benefit of progressive resistance training and testosterone administration to improve muscle strength and cross-sectional area for elderly men.

Seventy-one males with an average age of 78 served as subjects and were randomly placed into one of four exercise groups. The groups consisted of low-intensity resistance training (20% of the one repetition maximum) with injections of either testosterone or a placebo and high-intensity resistance training (80% 1RM) with injections of either testosterone or a placebo. Each subject received training and injections for 12 weeks.

Strength improved in all 4 groups, but was statistically greater in the high-intensity training group. Subjects who had the testosterone injections saw significantly greater increases in cross-sectional area than the placebo group, but not significant gains in strength. Interestingly, no protocol resulted in significant increases in functional capacity.

The results of this study indicate that high-intensity strength training produces greater gains in muscle strength, but that the addition of testosterone significantly increased cross-sectional area. This study indicates that Fitness Professionals have a range of program design options in designing training programs to meet their clients’ goals. In addition, trainers should remember that gains in muscle strength and size do not necessarily parallel gains in function.

Sullivan, Dennis, H. et al. Effects of muscle strength training and testosterone in frail elderly males. Medicine & Science in Sports & Exercise. 2005: 37(10), 1664-1672.


Post-rehab Exercise Critical To Restore Strength After Knee Replacement

The first few months after knee replacement surgery are critical to restore the function of the knee extensors (quadriceps). The purpose of this study was to document quadriceps strength before knee replacement and to compare it to results at 30 and 60 days following unilateral knee replacement surgery.

Thirty-eight men and women with an average age of 72 served as subjects. Force production of the knee extensors was assessed before surgery and at 30 and 60 days after surgery.

The study demonstrated a significant reduction in force production in the involved limb after the surgery: Force production was at its lowest level 30 days following surgery. By 60 days after the surgery, strength had improved and approached pre-surgical levels.

The results of this study clearly document the necessity for rehabilitation to continue for at least 60 days, which is when many physical therapy programs cease. Keep in mind, though that this only brings the strength up to pre-surgical levels which were deficient (compared to the uninvolved limb) to begin with. This study documents the necessity for post-rehabilitation and/or home exercise programs past the 60-day period.

Rossi, Mark, D. et al. Early strength response of the knee extensors during eight weeks of resistive training after unilateral total knee arthroplasty. Journal of Strength & Conditioning Research. 2005, 19(4), 944-949.

January Exam
Preparation Schedule:
CSCS Exam Review
NSCA-CPT Exam Review
ACE Personal Trainer Exam Review

If you are sitting for your national certification this winter, Exercise ETC can help! We have a large selection of exam review courses from coast to coast. These programs are specifically designed to cover the exam content of each specific test, and are sure to increase your potential to pass the exam on your first attempt. All programs come complete with home study and classroom materials and come with our guarantee: If you do not pass the exam after completing our training class, you may retake the exam for free! Our partial schedule is below; for more details, visit our web site at: www.exerciseetc.com or call 1-800-244-1344.

CSCS Exam Review: January 21 & 22, 2006
Boston
New York City
Phoenix

NSCA-CPT Exam Review: January 21 & 22, 2006
New York City

ACE Personal Trainer Exam Review: January 28 & 29, 2006
Atlanta
Boston
Houston
New York City
San Francisco
Washington, DC

ACE Personal Trainer Exam Review: February 4 & 5, 2006
Chicago
Cleveland
Fort Lauderdale
Los Angeles
Portland, OR
Tucson

 

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