"Doctors, etc." contains articles, excerpts and the Manual Biofeedback section for all health professionals.
Important Links:

Go to the Manual Biofeedback page.


The abstract to my technical article, “Manual biofeedback: A novel approach to the assessment and treatment of neuromuscular dysfunction” is in the Journal of Alternative Medicine Research (J Altern Med Res 2009;1(3)). Read it. (For an electronic copy of the whole paper, email me: webmaster@philmaffetone.com.)

For information on manual muscle testing and related kinesiology materials, go there.

Excerpts from the textbook Complementary Sports Medicine:
– Philosophy of Complementary Medicine. Read it.

– Heart Rate Monitor Assessments. Read it.
More Articles

Do taste buds influence the glycemic index?
The Oral-Nutrient-Brain-Body Pathways

For chiropractors, here’s an important article
I wrote with Dr. Scott Cuthbert—pass the word.

Sunshine & Vitamin D: Powerpoint slides

Dangers of Synthetic & Unnatural Vitamins

The Whole Vitamin E Story

Special Features
Cancer Update: Is mammography for all women?
Coralee Thompson, M.D.

Overtraining & Amenorrhea
Coralee Thompson, M.D.
The ABCs of Muscle Contraction

Skeletal muscles can produce power different ways. In general, muscles can shorten, lengthen and be relatively static while generating force.

A: Active shortening – such as what commonly takes place when lifting a Robbins Pathology textbook off the desk using your biceps – is referred to as concentric contraction. It occurs when a muscle does not need to reach its maximum level of power, and its starting point is often from rest.

B: Active lengthening. When an active muscle requires more power, it may do so while lengthening. If you want to put that Robbins textbook down slowly – so as not to damage your desk – your biceps accomplish this as they’re lengthening. This is referred to as eccentric contraction. The quadriceps function the same during a walk or run following foot strike (of the heel if walking, or mid-foot if running). While eccentric activities are the best way to train a muscle for increased strength, most injuries also occur in this contractile state (especially in the anaerobic fibers).

C: If you’re holding Robbins’ textbook while reading it, you’re generating and maintaining muscle force equal to that of gravity. This is called isometric contraction, where the muscles are neither lengthening nor shortening.
© 2006-2015 Philip Maffetone