Thinking back to our post referencing Jason Statham:
“Your body's like a piece of dynamite. You can tap it with a pencil all day, but you'll never make it explode. You hit it once with a hammer, bang! Get serious, do 40 hard minutes, not an hour and a half of nonsense."
It seems this theory is supported by Science too!
Dr Nicholas Gill (Strength and conditioning coach to the All Blacks) explains that training for longer than 50-60 minutes results in a decline in your muscle building hormones such as testosterone and insulin, and increases catabolic (muscle degrading) hormones such as cortisol!
The principle goes for CV and endurance training as well, Dr James O’Keefe explains how more than 60 minutes of intense endurance activity, every day, can actually lead to scarring of the cardiac tissue (heart), cardiac hypertrophy (growth) which could lead to irregular heartbeats and potentially cardiac arrest.
Extreme endurance activity has never been recommended for overall health…..any more than 60mins a day and you may see diminishing returns!