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Jump Squats

September 25, 2005 07:04 PM

You know I do them. They are the last set of my squat routine which is 15 to 30 at a beginning weight, about 8 at a much heavier weight, and 4 or so at a pretty heavy weight. All with no rest in between. Then as many jump squats as I can do. I hold the bar and jump as high as I can in a kind of vaulting move.

Now comes this article on T and cortisol, diet and intense exercise by Kraemer (among others) sent to me by Francois. It shows the jump squat raised testosterone by more than 15%. The bench press was about half of that. Protein and unsaturated fats were also associated with increased T. Tuna and salmon are the body builder's friend. Omega 3 oils induce gene expression that builds muscle, though this established knowledge is not discussed here, it is implied through the T connection.

· Evolutionary Fitness

Comments

Posted by: outsider [TypeKey Profile Page] at May 17, 2007 1:28 PM

Posted by: Flower Online [TypeKey Profile Page] at September 12, 2006 5:37 AM

Sardines are also a good source of Omega3 oils and very cost effective. Sardines have a short life cycle and hence in theory accumulate less toxins then larger fishes like tuna or salmon. However, I do wonder if the brand I have at my local supermart in Singapore "Ayam" - is processed in a way that does not massively modify or destroy the natural oils. It is mostly cooked in tomato sauce. I also look for brands processed in Chile which I assume has clean, safe fish stocks from the southen oceans.

Posted by: FONG [TypeKey Profile Page] at September 27, 2005 12:49 AM

The study is an interesting read in more than one way.

While it confirms the expected higher increases in T for jump squats due to perhaps, the authors speculate, greater muscle mass involved. The study also surprisingly suggest a high carbo to protein diet enhances T levels. This differs from the low carbo - low insulin objective recommended by Art.

When we think in terms of field conditions, Chinese farmers working in the fields with little modern machinery comes to mind. Their natural diet is low in protein and high in vegetables and rice.
They tend to be muscular and very well defined but short height-wise. I generalize of course. I do not know that many chinese farmers in the interiors of PRC still working without machinary.


We should note the method of data collection for dietary analysis. The self-reported group can also be characterized as a self-selected group that may also ready be predisposded to have higher T levels, for reasons that are connected to, but not entirely due to diet as a root cause. The study was not one that changed carbo-protein ratios to obtain the impact on T levels.

Posted by: FONG [TypeKey Profile Page] at September 26, 2005 9:10 PM

Why don't we have more studies that correlate T levels with various exercises? Seems to be that would be mighty helpful.

Posted by: dfobare [TypeKey Profile Page] at September 26, 2005 9:20 AM

If I read the paper correctly ( http://jap.physiology.org/cgi/content/full/82/1/49) correctly, are not protein negatively correlated with T and polyunsaturated fat (/saturated fat) also negatively correlated with T?

Posted by: Minger [TypeKey Profile Page] at September 26, 2005 4:13 AM

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