The Fitness Docs

https://www.youtube.com/watch?v=YezBG_NdLgs

Prof Peter O'Sullivan and Core Stability - April 2012 Peter discusses cognitive functional therapy and the myth of "core stability" in relation to chronic low back pain.

https://www.youtube.com/watch?v=YezBG_NdLgs

Dismantling 'the core' to better back care Two physios say the idea that pack pain is a result of a weak "core" is wrong and must be corrected to better manage the complaint affecting thousands.

No More 1/2 Kneeling Rotary Core Training Exercises! http://nicktumminello.com/ - Baltimore Personal Trainer: Coach Nick Tumminello shows you why the 1/2 Kneeling Rotary medicine ball throw and all other 1/2 kn...

OK, I did some more research and realized that my last posting was erroneous (see Athlean-X), ignore that. Brett Contreras does a great job explaining the factors that go into a "butt wink", it's NOT just flexibility. Thanks Brett!

Squat Biomechanics and "Butt Wink" This video discusses squat biomechanics, paying special attention to "butt wink" or posterior pelvic tilting at the bottom of the squat. I discuss the anatom...

I saw another Physical Therapist talk about the "butt wink" and he said if your patient has normal hip flexion ROM (or normal hamstrings length) and a "butt wink" then there is a hip pathology. Wasn't sure what he was saying until I saw this video.

The "Butt Wink" Squat Flaw (What Causes It and How to Fix It!) Fix your lifting flaws and start seeing faster results by training like an athlete here http://athleanx.com/x/fix-your-flaws Learning how to squat properly o...

https://www.youtube.com/watch?v=u1sfPfsESDQ

Stop Stretching Your Hamstrings (UNTIL YOU WATCH!!) Build muscle without imbalances here - http://athleanx.com/x/no-imbalance Subscribe to this channel here - http://bit.ly/2b0coMW Hamstring stretching is some...

Our clients are our textbooks!!!

IS EXERCISE THE KEY TO WEIGHT LOSS? In the February issue of Scientific American, there was an article entitled, "The Exercise Paradox." Fascinating article written by anthropo...

Many trainers have ditched the age-old sit-up based on Dr. Stuart McGill's research but this article (which appeared in the NSCA Strength & Conditioning Journal (2011) challenges his research.

http://journals.lww.com/nsca-scj/Fulltext/2011/08000/To_Crunch_or_Not_to_Crunch__An_Evidence_Based.2.aspx #

I just finished a book called "Ultimate Fitness--The Quest for Truth About Exercise and Health" by Gina Kolata, although it was published in 2003, it did provide some interesting info about the history behind the so called "Heart Rate Chart." Here is a "long winded" summary.

The 220-age=MAX HR
is based on real data.

Originated in late 1960s from William Haskell (Exercise Physiologist) and Dr. Sam Fox (Cardiologist).
Provided a formula for max HR for people who were having stress tests for heart disease.

Their paper (published in 1970) in a book "Research conference on applied work Physiology."

In 1968 Haskell teamed up with San Fox. It was then that heart attack survivors were first being encouraged to exercise and the medical profession were a bit nervous regarding the exercise prescription.
How could patients know how hard to work to help their hearts without any deleterious effects.

One idea was to see if max heart rate and age had a relationship.

Haskell gathered up 7 stress test studies which include maximum heart rate and age and plotted out the data points on an X- Y Graph.
They drew a line through it and through extrapolation (correlation coefficient) it looked like max heart at 20 was 200, at age 40 was 180 and at 60 was at 160, thus the 220-age was born!

In 1971, they presented their study for publication.

Can be off by 30(+ or -)
Not designed for athletes!

Mike Sylvester