Rabu, 27 Februari 2013

...and another "sitting will kill you study"

The whole paper is here

It is all about general activity levels rather than vigorous activity....

The study found that the time spent sedentary, as opposed to the vigor of physical activity, was significantly and negatively correlated with a number of metabolic risk factors.

Reports here and here

Think I better walk to work today.  Nice views to come anyway!

Reassessing Vitamin D

It has been interesting in recent months to see how previously lauded approaches are sometimes abandoned and positions reversed.  For example Fish Oil used to be prescribed in massive dosages ...(remember the Whole9 Fish Oil Calculator?) but there has been a recognition that this might not be healthy.

Vitamin D was also held up as a wonder drug for long enough too.  Again now there are questions as to the value of it, especially in terms of supplementation.



Pregnant women should avoid taking vitamin D supplements. Substitution appears to raise the risk of children developing a food allergy after birth. This was the conclusion drawn from a new survey carried out by the Helmholtz Centre for Environmental Research and the Martin Luther University in Halle-Wittenberg in Germany which was published in the February issue of the medical journal Allergy.

I am sure we could question the methodology of the study, but it is interesting nevertheless.

Sabtu, 23 Februari 2013

what you are made of.....

Backpacks and squats

I spotted an interesting report yesterday about the potential dangers of carrying a heavy backpack in terms of nerve damage at the shoulders.


...the pressure of heavy loads carried on the back have the potential to damage the soft tissues of the shoulder, causing microstructural damage to the nerves. 
The result could be anything from simple irritation to diminished nerve capacity, ultimately limiting the muscles' ability to respond to the brain's signals, inhibiting movement of the hand and the dexterity of the fingers. In practice, this could impact functionality, reducing a worker's ability to operate machinery, compromise a soldiers' shooting response time, or limiting a child's writing or drawing capacity.
The context of the study was soldiers carrying heavy backpacks (I am trying to find the actual study - might be this)

However, it did make me think of the potential damage that could be caused by heavy back squats where you have large weights right on this sensitive area.  It also made me think about what Bill DeSimone explained about the squat:





Kamis, 21 Februari 2013

Another study on the dangers of sitting



That is a link to the pdf of the full paper.


As usual, the NHS Choices site is pretty good at pointing out the limitations of the study before we all rush off and get too paranoid about things.

ConclusionThe results of this study suggest that there is an association between longer periods of time spent sitting down and diabetes and overall chronic disease in middle-aged Australian males.
Previous research has also found that the amount of time spent sitting down (‘sedentary behaviour’) is a risk factor for health, and that this risk factor is independent of the amount of time spent performing physical activity. This large study, which took into account several potential confounding variables, adds to this body of evidence. However, this study has limitations:
  • Due to the cross-sectional study design, we cannot tell whether increased sitting time occurs before or after the development of chronic diseases.
  • All of the data was self-reported by the men in the study. This means that it could have been affected by recall bias, or by under- or over-reporting.
  • Not all people who were invited to complete the questionnaire did so. This means that there could have been a ‘selection bias’ in the recruitment of participants. This could have skewed the results either way – healthy people may have been more likely to respond or, alternatively, men more worried about their health may have been more likely to respond.
  • It should also be remembered that this study was performed in middle-aged Australian men, and it is unclear whether the results can be generalised to other populations.
Despite these limitations, this study offers further support for the current physical activity recommendations for adults and the fact that physical inactivity can be bad for you.


Exercise of course is very good for you.... 

Vanity update

Another vanity post.

Still maintaining a fairly lean state.  Nothing complicated in terms of either training or diet.  As I've been saying it is about consistency, patience and persistence.  I'm 45 and have been training with weights for 30 years.  I am nothing spectacular, but certainly look better and am fitter than most of my 45 year old friends.

My main challenge is keeping that focus on the basics and not being diverted by the glamour of the latest machine or technique.

I am still trying to get stronger because if there is any magic, then that is it - progression.  But beyond all this is a desire to keep safe and avoid injury.

Diet?  Since getting more sensible and introducing more carbs and less fat, I've leaned out a lot.  Not sure if Matt Stone would be happy with me though!

Rabu, 20 Februari 2013

how cells respond to stress

This is more like a glossary or definition of terms, but it is interesting to see where some of these words come from

Senin, 18 Februari 2013

New directions, Part 2.

In New directions, I posted a YouTube video of me doing karaoke. Since then, I've branched out into singing at open mic nights, jam sessions and rockaokes/bandaokes (karaokes with live backing bands).

So, here's a YouTube video of me singing "Disco 2000" by Pulp, backed by the band Jukebox at the Falkners Arms in Fleet on 19th January 2013.

EDIT: The video is temporarily unavailable.

Sabtu, 16 Februari 2013

Jumping

I've not put up a video of a big jump fo a while.  Here is what an Olympic high jumper can do:

Jumat, 15 Februari 2013

More of the simplicity stuff

in the vein of the recent posts on keeping thing simple and in perspective, I thought I'd post this recent statement from Brad Pilon


My advice - Stop trying to get a PhD in endocrinology by studying blog posts and articles about hormones and hormone interactions and stick with this simple plan:
  • Consistency of Effort in the gym + eating a little less than you want to.

  • Get a good nights sleep, don't get injured and stop trying to figure out 'what's wrong with you'

The whole post is here

Threat and physical performance


This is great
The implication is that one great way to increase performance is to reduce perceived threat, because threat might make our movement weak, slow, stiff, uncoordinated and painful. Sounds like everything we try to get rid of when we go to the gym! But of course many people will create excess threat during their workout, which will tend to be counterproductive.

Selasa, 12 Februari 2013

Strength Training and the Biomarkers of Ageing

For all my chat about the over complication of exercise I do want to be clear that strength training is very important to health and brings with it a host of benefits, not least in terms of promoting function and health as we age.

Skyler explains :

Senin, 11 Februari 2013

The Cell in 60 seconds

Kelloggs Special K Cracker Crisps.

At home, I watch TV on my lap-top with ad and script-blocking plugins. As a result, I don't see any adverts on commercial TV, YouTube etc.

While visiting mum today, the TV was set to a commercial channel. During an ad break, there was an advert for Kelloggs Special K Cracker Crisps, with the following tag-line (emphasis mine):- Introducing New Special K Cracker Crisps, the deliciously moreish savoury snack that you can feel good about.

A serving (21 crisps weighing ~23g) provides only 95kcals. A box contains 100g which provides 413kcals. I wonder how many people will be able to stop after eating 21 of these crisps?

Walkers salt & vinegar crisps contain the following ingredients:- Potatoes, Sunflower Oil (25%), Rapeseed Oil, Salt & Vinegar Seasoning, Salt & Vinegar Seasoning contains: Flavouring, Dried British Vinegar, Salt, Citric Acid, Sugar, Potassium Chloride, Yeast Extract.

Kelloggs Special K Cracker Crisps S & V contain the following ingredients:- Tapioca Starch, Dried Potato, Wheat Flour, Salt & Balsamic Vinegar Seasoning (Lactose {from Milk}, Sugar, Acidity Regulator {Sodium Diacetate}, Salt, Flavourings (contains Barley), Sea Salt, Citric Acid, Balsamic Vinegar Powder, Rapeseed Oil, Dried Tamarind Extract, Yeast Extract, Black Pepper, Stabiliser {E450a}, Antioxidant {E304}), Sunflower Oil, Maize Flour, Oat Fibre, Salt, Emulsifier (E471).

With food engineering like that, I'm sure that they'll sell like hot cakes. Here's my opinion on how the fight against the obesity epidemic is going...

Kamis, 07 Februari 2013

Fact or Fiction 2

From the same article

You read about some exotic exercise or exercise system; some 'wonder' vitamin, mineral or protein supplement; secret attitude etc...etc...Though all of these factors may play a role in successful bodybuilding, they are so secondary that they become almost trivial compared with the essence of bodybuilding.


Bodybuilding fact is that if you would ensure that your training is progressive then you will gain muscle without hardly giving a thought to diet, attitude,  specialist equipment etc.  People are continually looking for new easy ways in bodybuilding by considering those factors outside hard heavy training.  The cause of this misdirected attention probably lies with those individuals who have commercial interests in bodybuilding   The essence of successul bodybuilding is so plain and simple that it cannot allow many people to make gain from it. What these profit mongers do is to try to make bodybuilding much more complicated and involved than it really is so that they can find something 'new' to write about, some secret to make training finally work, miracle supplements etc etc.  They have developed a bodybuilding fiction so as to be able to exploit the bodybuilding public.

Stop being confused, misled and exploited.   

From Bodybuilding Fact and Fiction by Stuart McRobert, in Iron Man May 1982 issue.

I think we are still being confused, misled and exploited.  It is even worse now than it was 31 years ago.  There are now even more supplements, exercises and pieces of exercise equipment and the internet feeds our desire for novelty and facilitates our distraction from the basics.  It is the great distraction.

Fact or Fiction 1

A couple of quotes from an article in May 1982 Iron Man, one of the first bodybuilding magazines I ever bought and one of the most sensible.

Stop worrying about your training and fretting over your diet.  Train hard and briefly using progressively heavier and heavier weights, get as much rest as you need between workouts and eat a healthy well varied diet.  Base your diet on natural foods as nature intended rather than on refined and processed foods....


Those people who expound the absolute need for dietary supplements, exotic training courses and specialist equipment nearly always have vested commercial interests in the perpetuation of these myths. Please learn from mine and many other people's mistakes and stop being misled by bodybuilding fiction.


From Bodybuilding Fact and Fiction by Stuart McRobert, in Iron Man May 1982 issue.


You know, 31 years after that was written and perhaps 30 years after I first read it I am realising how little things have changed.  This is what I've been getting at with some of my recent posts.

500m rowing.

For the first time in years I did a times 500m row on the Concept 2 at lunchtime.  1:44.3 for 500m.  Not great.  I forgot how hard it is.  The first 100m or so I was in the low 1:30's for pace and then it hits you hard.  The last 250m are a killer, each stroke seeming harder the power draining out of each pull.  It would be good to get under 1:40 again - about 10 years ago I was at 1:39.

I am amazed by the speed that some people can achieve:

Here is a 70 year old guy pulling 1:34.2



and this guy getting 1:14.4 for a world record

Real Functional Training

There has been a lot of crap written about "functional" training.  I've probably written some of that crap myself over the years.  (I've been getting struck repeatedly recently by how little I know, how far I am from being any sort of expert).

I was thinking about the whole concept this last weekend as I was visiting my mum.  Forget balancing on a Bosu ball or single leg deadlifts...I saw what was important.  She is 77 and has now got rid of the bath for a walk in shower because she was no longer able to get in and out of the bath.  She walks... but it is getting harder.  Standing up from the floor?  I don't know if she could.

That is the sort of function that we need.  Sufficient strength and appropriate skill to survive independently, to live independently.  All of the endless debates and arguments about training methods frustrate me. Just get stronger and do it safely.  Take the long view.  Is what you are doing something that you can keep doing for the next 40 or 50 years and will it give you the strength and skills to be independent when you are 70, 75, 80 or more?

And the bigger context of course is death. No matter how functional you are death is coming; strength will help make your life more fun and easier but it is not the whole story.  Strength will let you function, but what are you doing with those years?

Rabu, 06 Februari 2013

Just say "NO". There's more to sunlight than Vitamin D3.

Just say NO?


Hat-tip to Richard Nikoley for posting the following video by Richard Weller, which I am posting as an embedded YouTube video rather than a Vimeo one, as YouTube gives me fewer problems.



Take-away message: Deaths from heart disease are 100 times higher than deaths from skin cancer (because the vast majority of skin cancers are benign).