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Post details Post   (Contract pics)
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jackill
2011-08-20 08:57:20
"little steps" from jackill Contract pics
Picture: little steps (Contract pics)
Stop walking on your hands Dessie
found the explanation below on yahoo answers

In your body, there are two main "compartments" of fluid. The fluid that is in your tissues such as skin, muscles, organs..etc and the fluid that is in the blood. Fluid is continuously moving between the two compartments. There is a balance in this fluid movement to make sure that too much does not move in one direction. If too much moves towards the tissues, then you have swelling of the tissues. If too much moves into the blood, then you have almost no skin tightness (turgor).

To simplify things, the things that control the net movement of fluid between the compartments are:

1. Proteins and salts in the blood (pulls the water back from the tissues due to the osmotic gradient)
2. Proteins and salts in the tissues (pulls water into the tissues from the blood)
3. Blood pressure (pushes water into the tissues)

If these are altered, then you get a shift of fluid from one compartment to the other.
e.g.
if the blood pressure increases then more fluid moves into the tissues than moving out.
if you have less proteins and salts in the blood, then more fluid moves into the tissues than moving out.
if you have too much protein and salt in the tissues, then more fluid will again move into the tissues than moving out.

When you exercise, you will have a higher blood pressure because the heart is pumping much harder to get more blood around the body. This higher blood pressure may increase the amount of fluid that is moving into the tissues. Furthermore, when you sweat, you lose salts. Fewer salts in the body may also lead to more fluid moving out of the blood and into the tissues. Furthermore, the blood vessels tend to dilate in order to lose heat, this causes a higher surface area inside the blood vessel which may increase the diffusion out of the blood. Why this occurs in some people and not others may be related to disease (high BP and low proteins and salts in blood), or it may be related to the poor circulation (Blood moves out of the limbs and back to the heart slower than blood going to the arms causing a "traffic jam" and increasing the "local blood pressure"), and in some people, it is normal and may be related to just the way their body is built.
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RECENT CONTRIBUTIONS 1 2 3 .. 18 Next page >>
Track
Beinn Ghobhlach
Peter Walker 2 days ago.
Beinn Ghobhlach by evening lightWhen you're told that you can do a walk in the morning if you're quick because your o... walk, Len: 10.9km, Climb: 739m, Area: Beinn Ghobhlach, Loch Maree to Loch Broo

  
Track
Suilven
Peter Walker 3 days ago.
I first read about Suilven when I was about 11. It was in some British geographical gazetteer, a stern washed-out pict... walk, Len: 24.0km, Climb: 1029m, Area: Lochinver to Ullapool (Britain) Suilve

  
Summit Comment
Knockannavea: Nice views to be had
csd 4 days ago.
While not very challenging, recent felling means the views along the way and from the summit are pleasant enough. A nice spot for a lunchtime walk.

Track
Maumtrasna Plateau via Dirkbeg and Buckaun Spurs
Onzy 4 days ago.
Route to the Mauntrasna plateau using the Dirkbeg spur for ascent and the Buckaun for descent. walk, Len: 10.8km, Climb: 535m, Area: Maumtrasna North-East Top, Partry/Joyce C...

  
Summit Comment
Slieve Elva: Fantastic scenery
Damian120 3 days ago.
A stunning walk going up over Slieve Elva that you can begin and end end at Fanore Beach. Some great locations along the Caher River to stop and relax and watch the water gently flowing downstream...

  
Summit Summary
Knocknabro East Top: Drought made difficult ground trek possible
Collaborative entry Last edit by: CaminoPat 5 days ago.
Knocknabro East Top is best climbed as part of a good loop walk, taking in the West and North-East tops of Knocknabro. This summit is best reached firstly via Knocknabro West Top and then onto the...

Forum: General
Lough Ouler From Tonlagee
tomlug48 3 days ago.
A beautiful July day on the summit of Tonlagee. Gazing down at the beautiful heart shaped Lough Oular.Tom Barragry & the Lugs .

  
Track
Picos de Europa
peter1 4 days ago.
I can say with certainty three things: the ascent was not 3266m, given the peak is only 2503m; secondly, I will be back walk, Len: 13.9km, Climb: 3266m, Area: Spain, Cantabria ()

  
Summit Summary
Knocknabro North-East Top: NE Top Revealed
Collaborative entry Last edit by: CaminoPat 5 days ago.
This summit is best reached via Knocknabro West Top. Park at laneway to old farmhouse now in ruin at W15905 83498. Room for 1-2 cars to park. Climb gate at entrance and follow post and wire fence ...

Track
Sail Mhor
Peter Walker a week ago.
After a week of blazing sunshine in the Peak District overwhelmingly spent swimming in the pool, lazing by the pool a... walk, Len: 11.3km, Climb: 833m, Area: Sail Mhor, Loch Maree to Loch Broom (Bri

  
Forum: General
Found
des carroll 5 days ago.
Hi folks. A pair of walking sticks were found in Seskin, Glen of Imaal near Fenton's. Would the owner please phone 086 8607393. If you do not get an answer, please leave a brief message with a pho...

  
Track
Coastal Dublin - Donabate to Malahide
Onzy a week ago.
Circuit of Broadmeadows Estuary from Donabate to Malahide walk, Len: 12.9km, Climb: 115m, Area: Dublin Islands (Ireland)


RECENT CONTRIBUTIONS 1 2 3 .. 18 Next page >>