Why 6 inch elevation?

MY MISTAKE!

Okay its been revised. I used a figure of 4.75 instead of 6.75 but it still causes me problems. Please read.

These are the measurements below with calculations and results are...
Tip = 6.875 inches elevation at 74.75 inches so 6.875 / 74.75 = 0.092 and inv Tan = 5.26 degrees slope.
7 inches below this is 6.75 (incorrectly 4.75 in last post) inches height at the 67.75 inches mark = 6.75 / 67.75 = 0.0996 so using inverse tan = 5.69 degrees angle!

What is wrong with the above figures ? What am I doing wrong here ? The angle is now increasing lol.
I don't have a modern mobile so I am unable to use any apps.
Need help on this one because I understand what you say that angle should never be different, yet these are clearly showing a difference in slope angle...still confused.

Glad to be of help....this might also help

myndwarp.wordpress.com/2009/03/10/egypti...nclined-bed-therepy/

Its not my maths that is wrong I think its my dodgy measurements that are wrong...Gonna get cuppa and re-evaluate lol.
That was a good link thanks for that.

Okay it was my measurements that were wrong. The way my bed is tilted with books its not been easy to measure correctly but now its final lol...
Will post measurements anyway just to be thorough...

Mattress and base length used = 74.75.

Top is raised by 6.5 inches, creating a 4.97 degrees angle (6.5 / 74.75 = 0.087 when inv tan = 4.97).
Where my head rests is 67.75 inches which is 7 below the top of mattress, which means 6 inches rise and creates a perfect 5.06 degree angle where head is...

So its only minor fluctuations in angle probably because of my imperfect measurements. So to cut all those previous posts of mine short its safe to say how far down the slope the head is placed is irrelevant, so long as you're not kissing your feet.

Finally, I have a 5 degree angle! Good enough for ancient Egyptians its good enough for me

There you go...bang on target. Now enjoy the most sophisticated anti aging technology that exists!

Add this app to your smart phone. play.google.com/store/apps/details?id=co...nometerFree&hl=en_GB

Right angle Triangle Calculator for Inclined Bed Therapy angle
The range that IBT works well with is around 5 degrees, though this is an approximation / round up.
www.csgnetwork.com/righttricalc.html
On a 2 meter bed for example we enter the height of the head end of the bed as 15 and the horizontal plane of the bed as 200 for metric measurements.

This gives an angle of 4.29
Raising the same bed by 20cm will give an angle of 5.71
Our bed measures 202 cm long, excluding upright head and foot-board. It is raised 17 cm higher at the head end than the foot end. Using the calculator provided it gives an angle of 4.81 degrees to the horizontal.

Isn't it interesting that the Russians found returning cosmonauts found minus 6 degrees..I,e. Head down, the most comfortable position to lie down....it mimics weightlessness well.

That is indeed of interest, where did you find this fact? I experiment with most everything I do, and its one of the reasons I tried out 6.11 degrees instead of the 5 degrees recommended - with not so good results as you know in my last post in this thread - but who knows, maybe after a while of IBT raising degrees may become even more healing...I would definitely not recommend any newcomer to IBT (like myself lol) though to try more than 5 degrees, just in case they get a negative result and associate that with IBT.

It's research by DrJoan Vernikos that I followed up from Andrews sitting article. It might be mentioned on the video in this site...but on follow up found that Vernikos had imported the technique from the Russians. Interesting that it never occurred to them to try positive 6 degrees....it was for returning cosmonauts trying to adjust back to earth.