Re: How 'little' exercise is benficial

[Guest guest]

I read this and really think it is a misrepresentation of the data and doing a huge disservice to those who do not understand it. While I agree that the amount of exercise needed to obtain the benefits of exercise is minimal, this article is a atrocity.The subjects did not exercise 7 minutes per week. Their exercise consisted of a warm up, followed by several sessions of very high intensity (or as they study says, ALL OUT) sprints of 30 seconds each, followed by a 4 minute rest. They did about 4-6 a session and 2-3 sessions a week. So, the total sprint time was about 7 minutes per week, but the total exercise time was more like From the article,The sprint training protocol was similar to that used previously byBurgomaster et al. [4, 14]. Six sessions of sprint interval exercise were spreadover 14 days,

with 1 or 2 days of rest between each session. Each trainingsession consisted of 4-6 repeated 30-s all-out cycling efforts against aresistance equivalent to 7.5% of body weight (Wingate tests), with 4 min ofrecovery between sprints. During recovery, subjects remained on the bike andeither rested or cycled at a low cadence without resistance. The number ofsprints increased from 4 during the first two sessions, to 5 in the third andfourth sessions, and 6 in the last two sessions. Total time commitment was17-26 min per session, involving only 2-3 minutes sprint exercise.The study was also done on 25 young healthy males. While the mass media is promoting this that anyone can get the benefit from 7 minutes a week, and as one media outlet said, "without even breaking a sweat", this is not true.Let me quote comments from the originator of this protocol...

"This protocol [was] invented to stress the cardiovascular systems of top Japanese [speed] skaters who got medals in the Olympic games. Therefore, the protocol is very tough. The subjects lay down on the floor after the training." and "High-intensity exercise cannot

be prescribed for individuals at risk for health

problems or for obese people who are not used to exercise."Considering 70% of American are considered sedentary and also overweight and about 34% are obese, this protocol and information applies to almost no one and is a real example of how the media distorts health information.RegardsJeffFrom: bill4cr <bill4cr@...>Subject: [ ] How 'little' exercise is benficial Date: Wednesday, February 11, 2009, 12:16 AM

Just 7 minutes per week can help! But the exercise must be vigorous.

http://www.reuters. com/article/ healthNews/ idUSTRE50R0BH200 90128?feedType= RSS & feedName= healthNews

[Guest guest]

There’s another problem with this study. Only 25 subjects (and all the same sex and other similar traits) is meaningless

From: Jeff <jnovickrd@...>

Reply-< >

Date: Wed, 11 Feb 2009 07:13:36 -0800 (PST)

< >

Subject: Re: [ ] How 'little' exercise is benficial

I read this and really think it is a misrepresentation of the data and doing a huge disservice to those who do not understand it. While I agree that the amount of exercise needed to obtain the benefits of exercise is minimal, this article is a atrocity.

The subjects did not exercise 7 minutes per week. Their exercise consisted of a warm up, followed by several sessions of very high intensity (or as they study says, ALL OUT) sprints of 30 seconds each, followed by a 4 minute rest. They did about 4-6 a session and 2-3 sessions a week. So, the total sprint time was about 7 minutes per week, but the total exercise time was more like

From the article,

The sprint training protocol was similar to that used previously by

Burgomaster et al. [4, 14]. Six sessions of sprint interval exercise were spread

over 14 days, with 1 or 2 days of rest between each session. Each training

session consisted of 4-6 repeated 30-s all-out cycling efforts against a

resistance equivalent to 7.5% of body weight (Wingate tests), with 4 min of

recovery between sprints. During recovery, subjects remained on the bike and

either rested or cycled at a low cadence without resistance. The number of

sprints increased from 4 during the first two sessions, to 5 in the third and

fourth sessions, and 6 in the last two sessions. Total time commitment was

17-26 min per session, involving only 2-3 minutes sprint exercise.

The study was also done on 25 young healthy males.

While the mass media is promoting this that anyone can get the benefit from 7 minutes a week, and as one media outlet said, " without even breaking a sweat " , this is not true.

Let me quote comments from the originator of this protocol...

" This protocol [was] invented to stress the cardiovascular systems of top Japanese [speed] skaters who got medals in the Olympic games. Therefore, the protocol is very tough. The subjects lay down on the floor after the training. "

and

" High-intensity exercise cannot be prescribed for individuals at risk for health problems or for obese people who are not used to exercise. "

Considering 70% of American are considered sedentary and also overweight and about 34% are obese, this protocol and information applies to almost no one and is a real example of how the media distorts health information.

Regards

Jeff

From: bill4cr <bill4cr@...>

Subject: [ ] How 'little' exercise is benficial

Date: Wednesday, February 11, 2009, 12:16 AM

Just 7 minutes per week can help! But the exercise must be vigorous.

http://www.reuters. com/article/ healthNews/ idUSTRE50R0BH200 90128?feedType= RSS & feedName= healthNews <http://www.reuters.com/article/healthNews/idUSTRE50R0BH20090128?feedType=RSS & amp;feedName=healthNews>

[Guest guest]

The interesting part of the study is they were all very young men

(early 20's), yet brief exercise still improved their glucose and

insulin. I'd think 20 yrs old would have good control values yet

exercise resulted in even greater improvement in these biomarkers. I

think that's significant finding.

" Only " 25? THIS study had less (PMID: 15096581) is it also

'meaningless " on this basis?

> > From: bill4cr <bill4cr@...>

> > Subject: [ ] How 'little' exercise is benficial

> >

> > Date: Wednesday, February 11, 2009, 12:16 AM

> >

> > Just 7 minutes per week can help! But the exercise must be vigorous.

> >

> > http://www.reuters. com/article/ healthNews/ idUSTRE50R0BH200

90128?feedType=

> > RSS & feedName= healthNews

> >

<http://www.reuters.com/article/healthNews/idUSTRE50R0BH20090128?feedType=RSS &

> > amp;feedName=healthNews>

> >

> >

> >

>

[Guest guest]

My experience with high intensity exercise is that I get injured a lot

more easily.

I think I'll stick to doing LSD (long slow distance) ;-)

Diane

> From: bill4cr <bill4cr@...>

> Subject: [ ] How 'little' exercise is benficial

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> Date: Wednesday, February 11, 2009, 12:16 AM

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> Just 7 minutes per week can help! But the exercise must

be vigorous.

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> http://www.reuters. com/article/ healthNews/ idUSTRE50R0BH200

90128?feedType= RSS & feedName= healthNews

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