Workout Myths

Advanced Personal Training Certification

A common workout myth is that lactic acid build up makes muscles fatigue. We now know that lactic acid has little to do with muscular fatigue. We are not sure of the cause, although calcium depletion might be indicated. Please refer to this article in the New York Times. Included are references to recent studies.

The following is an excerpt:

“For decades, muscle fatigue had been largely ignored or misunderstood. Leading physiology textbooks did not even try to offer a mechanism, said Dr. Andrew Marks, principal investigator of the new study. A popular theory, that muscles become tired because they release lactic acid, was discredited not long ago.
In a report published Monday in an early online edition of Proceedings of the National Academy of Sciences, Dr. Marks says the problem is calcium flow inside muscle cells. Ordinarily, ebbs and flows of calcium in cells control muscle contractions. But when muscles grow tired, the investigators report, tiny channels in them start leaking calcium, and that weakens contractions. At the same time, the leaked calcium stimulates an enzyme that eats into muscle fibers, contributing to the muscle exhaustion.”

ASFA® offer certifications to help advance the career and education trainers.  Enhance your knowledge base and marketing today by taking ASFA's Advanced Personal Trainer test. 

Advanced Personal Training Certification

next post → ← previous post

Stay in Touch

Endorsements

ASFA® is endorsed by leaders in the fitness industry. Please check out our endorsements and partners page for more information!

Latest Fitness Posts

  • Affordable Bootcamp Fitness Certification Online

    We do our best to be sure that your speciality certifications are as convenient and affordable as possible.  As the prices of everything are going up, ASFA's specialty certifications start at $99!  You can test comfortably and conveniently online anytime... read more

  • 5 Reasons to Become a Group Fitness Instructor

    Top 5 Reason to Instruct Group Exercise Classes 1.  Maximize Your Benefit.  By learning group methods, you can reach more clients that you can with one-on-one training. 2.  Maximize Your Income.  To stay in the fitness industry, you have to... read more