Showing posts with label venting my spleen. Show all posts
Showing posts with label venting my spleen. Show all posts

Tuesday, July 21, 2009

History becomes legend

"And some things that should not have been forgotten were lost. History became legend. Legend became myth" Galadriel, Lord of the Rings.

This quote from "Lord of the Rings" reminds me of some of the trends and theories that float around the health and fitness world. It seems that some take a little pinch of science and morph it into theories which sound good, but ultimately don't achieve anything.

Take, for example, the idea of a "fat burning" zone. I've heard this a lot around the bodybuilding traps these days - "I'm only walking, to ensure that I stay in my fat burning zone and that I don't burn muscle by exercising intensely. "

Let me say for a start that the statement as is doesn't make sense from this little exercise physiologist's point of view:
a) Yes, there is a heart rate zone where the body uses fat as substrate for fuel more (eg 50-75% of Max HR) but the truth is that the body runs on carbohydrates, either by the process of gluconeogenesis or glycolysis. Fat is converted into carbohydrate for use as fuel. At higher heart rates, the body relies more on carbohydrate (which comes from stored sources, ie glycogen). Unless you're in a super deficit and eating a very low protein diet, it's highly unlikely that doing high intensity work will cause any muscle loss whatsoever. The joke is that when you are doing very intense strength training your heart rate will peak way above the "golden fat burning zone" that some of these bodybuilder types will promote! What happens then, burning muscle? Hardly - rather setting the body up to gain lean mass if nutrition principles are sound.


b) One secret to becoming a lean mean fat burning machine is to actually concentrate on getting fitter. Yep, get fitter and you will train your body to preferentially use fat as substrate during exercise and rest. This means instead of having to walk, you can run for half the time, half the stress and the same caloric expenditure occurs! At the end of the day, fat loss is related to caloric expenditure, "afterburn", and process of recovery from strength training bouts. On this note, I get told that "if I run, I'll release too much cortisol and I'll be catabolic". Whilst it is true that training switches on catabolic hormones, a fit runner will release far less cortisol than an inefficient one - and addressing post workout nutrition/correct supplementation will go a long way in flipping the switch towards a more anabolic environment.

c) I have to add that overdoing the cardio is no good for athletes who are focused on strength training. When I hear of competitors doing two hours of cardio a day to get lean, big question marks can then start to be raised about retaining muscle etc however 30 minute bouts of intense cardio interspersed with the lighter stuff shouldn't hurt anyone's cause, particularly if nutrition is sound.

***************************************************************

Training today: Back and triceps with Shelley. After a slowish start, we both got into it and caned it!
Cardio: total slug fest today (ie nothing). But hey, I stayed in my fat burning zone...heh heh

Tuesday, June 09, 2009

Venting my Spleen


There seems to be quite a lot going on in the land of Liz lately, the biggest thing that has been brewing has been a dissatisfaction with work/life balance - so these past few months I've been quietly taking stock of what's been happening and made a few decisions. I have decided doing face to face coaching and personal training is not for me - I have hated every minute of the long hours, the cancellations, the insular nature of the gym for a start. On the positive side, I have had some really terrific clients who I'm sure I will remain good friends with who will consolidate the changes they have made under my tutelage into lifelong results. As of this week I am dismantling my client base and seeing one on one clients only on Wednesdays and Thursdays until my contract expires at the end of July. I'm going to continue my RPM classes and am now going to train at Fitness First at Toowong or Jindalee - whatever takes my fancy on the day. So far, Jindalee is winning out. It's lovely and open and it's nice to see the outside through the big windows - I trained there today.
I'm looking forward to doing the simple things - not making the kids get up at 6am for before school care, being able to care for them when they're sick (Miss S was unwell today) , being able to get more sleep and being able to put my own training before everyone elses.
Now to the title of my post ....Venting My Spleen
I trained at FF Jindalee today and was horrified by the types of moves the PTs there were putting their clients through -
for example...a pregnant lady doing dynamic lunges off a BOSU when it was painfully obvious she couldn't do a normal lunge to save her life.
.....a PT watching her client obviously squat improperly
.....a PT vigorously stretching a pregnant woman's pelvis (ouch, and double ouch!)
.....a PT making an obese client do step ups on a platform twice as high as was necessary to execute the move correctly.
and the list goes on........
I think the basic PT qualifications are not enough - there needs to be more standardization across the board - I know some good trainers who have Cert3/4 and have spent time doing more continuing ed, but for most part, I'd be extremely wary of who I entrusted my health and wellbeing to.
The nutrition/diet industry is even worse. If I see another shake or snake oil marketing scam peddled I'll.......... do nothing and go about my non sexy business of recommending sound evidence based nutrition practices and vent my spleen again on another day.
What else vents my spleen? Phishing emails....I must have got myself on a mailing list...am so sick of them...arhg :)