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Tampilkan postingan dengan label HIT. Tampilkan semua postingan

Kamis, 31 Mei 2012

Resistance Training improves Cardio Fitness....Get Strong to get fit!

So we have been saying this for a while.... One of the key themes of my book Hillfit is that getting stronger will make you more fit for "cardio" activities such as hillwalking or hiking.  The theme is how to get stronger.  Indeed I had one client ask for a refund because I didn't tell her how to improve her cardiovascular fitness!  I need to send her this new paper:

Resistance Training to Momentary Muscular Failure Improves Cardiovascular Fitness in Humans: A Review of Acute Physiological Responses and Chronic Physiological Adaptations

A detailed, peer reviewed academic survey of the literature and previous studies which demonstrates that proper resistance training...to failure...improves all the standard measures of cardiovascular fitness.

This is a proper scientific paper, long and in depth.  The writers have been through all the relevant previous work on this and have demonstrated that getting stronger gets you fitter!

The full paper is available on line and  I have put the abstract below.

Training to Momentary Muscular Failure Improves Cardiovascular Fitness in Humans: A Review of Acute Physiological Responses and Chronic Physiological Adaptations. JEPonline 2012;15(3):53- 80. Research demonstrates resistance training produces significant improvement in cardiovascular fitness (VO2 max, economy of movement). To date no review article has considered the underlying physiological mechanisms that might support such improvements. This article is a comprehensive, systematic narrative review of the literature surrounding the area of resistance training, cardiovascular fitness and the acute responses and chronic adaptations it produces. The primary concern with existing research is the lack of clarity and inappropriate quantification of resistance training intensity. Thus, an important consideration of this review is the effect of intensity. The acute metabolic and molecular responses to resistance training to momentary muscular failure do not differ from that of traditional endurance training. Myocardial function appears to be maintained, perhaps enhanced, in acute response to high intensity resistance training, and contraction intensity appears to mediate the acute vascular response to resistance training. The results of chronic physiological adaptations demonstrate that resistance training to momentary muscular failure produces a number of physiological adaptations, which may facilitate the observed improvements in cardiovascular fitness. The adaptations may include an increase in mitochondrial enzymes, mitochondrial proliferation, phenotypic conversion from type IIx towards type IIa muscle fibers, and vascular remodeling (including capillarization). Resistance training to momentary muscular failure causes sufficient acute stimuli to produce chronic physiological adaptations that enhance cardiovascular fitness. This review appears to be the first to present this conclusion and, therefore, it may help stimulate a changing paradigm addressing the misnomer of ‘cardiovascular’ exercise as being determined by modality.
Key Words: Aerobic, Metabolic, Molecular, Myocardial

Go and read it....it will challenge you but will also explain a lot of where I am coming from in this blog and in Hillfit.   James Steele, the lead author, writes about the paper on his excellent blog - No such thing as cardio

Senin, 09 Januari 2012

Functional training...still a myth

I've had lots of stuff on here over the years calling into question the idea of functional training.  There is no skill transfer from one movement to another.  Movement skills are very specific and when you change the movement you need to develop new skills.  For example in tennis using a heavier racquet would not make you able to hit harder when you switch to a ligher one  -  it is a different skill.  You would have to learn all over again how to move with the different implement.  We covered some of this in the interviews with Luke Carlson, Drew Baye and Doug McGuff.

Anyway, James Steele today pointed to a new paper that addresses all this stuff



Influence of dynamic versus static core exercises on performance in field based fitness tests.



It is worth reading the abstract that James copies.  He concludes:

As always, separate physical conditioning from skill conditioning.

Sabtu, 31 Desember 2011

The Renaissance of Exercise

Well the book arrived while I was away for Christmas.   I've been reading the Renaissance Exercise blog for a while now, following the interest sparked on the Body By Science forum.  The protocol and indeed the whole philosophy of Renaissance Exercise interested me very much partly because it made sense - it lines up with the position of writers that I have leaned a lot form such as Doug McGuff and Drew Baye - and partly because it appealed to my contrarian leanings.

I'd read a fair amount of the SuperSlow articles that were freely available on the internet - there are several here - so I knew roughly what I was getting into.  Renaissance Exercise's marketing strategy was to drip feed blog posts, generating interest and then to launch their machines at a major event following up with the book itself. Well it worked for me, and I ordered the book.  The price put me off initially but I viewed it as a text book / investment and went for it.  I emailed Drew Baye as well and he highly recommended it and he always comes across as a harsh critic.

320 pages, hardback, ribbon bookmarks, dense with information.  This will be an interesting read.  You can find more on the book here

Rabu, 14 Desember 2011

The bodyweight option.....

You will recall that in the past I have interviewed the authors of Body By Science - Doug McGuff and John Little.

Over on Mark Sisson's blog Doug has a guest post on the Body By Science approach to exercise - Setting Yourself Up to Win: A Body By Science Approach

It is a good introduction to the principles of proper exercise, but the reason I am posting this here is jsut to draw attention to his bodyweight training option.  I hoep Mark and Doug do not mind me copying it here:

If you cannot go to a commercial gym, you can get started with simple free-hand exercises that I will describe to you now.


Chin up: This can be done with a chin-up bar that mounts in a door jam, on a sturdy tree branch or rafter board or playground equipment. If you are not strong enough to do chins, you can set the bar height so you can assist with your legs. If this will not work, simply do them negative only by jumping or climbing to the finished position and lowering yourself as slowly as possible.


Pushups: If you are too weak to perform strict marine pushups, do them from your knees. If you are too weak to do them from your knees, then do only the lowering portion, lowering as slowly as possible. If you are strong enough to do classic pushups, do them with a few modifications. First is slow movement. Start the first inch very gradually, taking 3 seconds to move the first inch and then keep smooth movement going. Divide the movement in halves. Do the first half (bottom position to elbows bent at 90 degrees) until complete fatigue. After you have exhausted the bottom half, do the top half until complete fatigue (elbows from 90 degrees to almost complete extension).


Squat: Start first by doing a static wall squat. Place your back against a wall and descend to a seated position where your hip joint and knee joint are both at 90 degrees. Hold this position for as long as possible. You are done when you start to slide down and cannot hold the 90 degree position any longer. Once you are worn out on the static, do a deep knee bend but with the movement divided in half. Do the first half until fatigue (from hips and knees at 90 degrees/thighs parallel to floor, up to the halfway up point where knees are about 45 degrees). Once you canʼt do the bottom half any more, then do the top half of the movement until you canʼt go on. Remember to not straighten your legs completely, but to turn back around when your knees get to about 15 degrees.


Static Lateral Raise: This movement is done using a door frame. Stand with your feet just outside the door frame and bend slightly forward at the waist. Place the backs of your open hands in the opening of the door frame with your elbows slightly bent. You should be positioned like you are going to a lateral raise with dumbbells. With your hands in the door frame, begin to slowly and smoothly press laterally against the frame. Gradually build up to a 50% effort and keep up a 50% effort for 30 seconds. After 30 seconds, gradually ramp your effort up to 75% effort and continue for another 30 seconds. After this 30 seconds is up, gradually ramp your effort to 100% and continue for a final 30 seconds. When you first start you will think “this is silly”. However, by the end you will realize that this is probably tougher than anything you could do on a weight machine.
The timed static contraction for the lateral raise at the end is a killer.  Superb stuff.