Friday, 22 July 2011
Your Lifespan – Part 2 – How you and I get ill | The Missing Human Manual
For right up until my late 40′s I was relatively thin and still able to do a lot of things.
Then one day in my 50″s, it seemed as if a switch has been turned on. Each year, I put on a few pounds and became progressively weaker. Then about 58, this process started to accelerate. My knees also were hurting a lot and I was investigating knee replacement! But I thought that all of this was normal.
I thought aged 59, that putting on weight and feeling poorly was my destiny. After all we all get fat and ill as we age – don’t we?
Monday, 18 July 2011
Matt Metzgar: Deceleration
July 16, 2011
Deceleration
I wanted to throw out some wild speculation about running. Sometimes you see a runner with good form and posture lose that posture when they start to decelerate. An example would be a baseball player racing to first base. After they hit the bag, some players kind of let their bodies go and their limbs flail a bit. Another example would be a runner hits the finish line and then loses his posture for the next few meters or so.
I wonder if this deceleration period has a greater potential for injury. During the high-speed running, the core is probably engaged and therefore the body is protected to some degree. But if that protection is disengaged immediately after the goal is reached, there may a be a brief window where injuries are more likely.
Comments
I own CrossFit NYC, and get to see a huge number of athletes at all levels working hard.
There, I've anecdotally noticed exactly this sort of effect on the deadlift - atheles tends to use their best form through the majority of a set, yet a sizeable percentage then go totally limp while lowering the weight at the end of the set.
Inevitably, it's in that poor form, no core engagement final movement that they end up tweaking their backs.
Sunday, 17 July 2011
The Physicist's Guide to fat loss - The Carb Nite Solution
"Carb Nite Solution an excellent book if you want not a fad but a fact based approach to weight loss.",
John Kiefer's Carb Nite Solution was one of the most informative nutrition related books I've read and the only one I can recall that includes an entire chapter of citations backing up the text. Using ultra low carb intake plus a weekly carb infusion to kick start the metabolism may be just the key for many who have been unsuccessful with managing bodyweight in the past.
The book is full of science that explains the relationship between food, hormones and energy expenditure and how that impacts keeping or shedding body fat. The author does a good job of keeping the density of scientific text low thus making the information accessible to the non-scientific reader. The section that deals with the fallacies of other plans - South Beach, Zone, Atkins, and others - using the science to demonstrate why those other methods don't work and actually sabotage the goal of healthy weight loss, systemically confronts arguments for alternate diet plans.
This is not a diet plan for life, and Mr. Kiefer notes that one should take a break and not implement this diet for longer than 6 months at a time. Anyone with a history of eating disorder would be advised to approach the plan with caution - while the author instructs readers to approach Carb Nite - the weekly infusion of carbs back into the diet - with reasonable consideration that spreads the intake over 6 - 8 hours and includes eating to satiety not oversaturation, someone with a eating disorder history could take this as permission to binge thus aggravating that condition. For the rest of the population without such a history, this should not be an issue.
Taking on Carb Nite takes planning, and the author has included some tantalizing food plans and recipes. John Kiefer has provided a scientifically based approach to body fat loss that harnesses the body's hormones and restarts the metabolism. This is an excellent book if you want not a fad but a fact based approach to weight loss.