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Muscle loss in old age linked to fewer nerve signals
Researchers say they may have worked out why there is a natural loss of muscle in the legs as people age - and that it is due to a loss of nerves. In tests on 168 men, they found that nerves controlling the legs decreased by around 30% by the age of 75. This made muscles waste away, but in older fitter athletes there was a better chance of them being 'rescued' by nerves re-connecting. The scientists published their research in the Journal of Physiology.
As people get older, their leg muscles become smaller and weaker, leading to problems with everyday movements such as walking up stairs or getting out of a chair.
Failure to expand the motor unit size to compensate for declining motor unit numbers distinguishes sarcopenic from non-sarcopenic older men (open, DOI: 10.1113/JP275520) (DX)
(Score: 2) by JoeMerchant on Tuesday March 13 2018, @06:14PM
My deal with the wife is: this is the last king mattress I will ever move up or down stairs - any future king mattress moving will be budgeted for professional movers, or handled by the new mattress delivery people. The king mattress is a particularly ugly beast at 78x80x12, and floppy. They don't bother with handles anymore, and the typical weight is right around 100lbs. Our stairwell is a mid-level landing switchback, set in a box that is about 75" wide, so no flipping the mattress over the handrail, it won't quite squish that much. Our bedroom doorway is 79" high right at the top of the stairs, so the mattress slides in one way, not the other - big fun doing the 90 degree roll on the stairs.
I think a lot of furniture is made just big enough to fit through a "standard" 30" door, which means that sometimes that door has to come off the hinges for some things to fit. I custom made a twin bedframe with integral headboard out of dimensional lumber and made the headboard 29" high, so it rolls in the bedroom door sideways on a skateboard. Unfortunately, 5' outside the bedroom door is a "passageway opening" with no door that is only 28" wide, so we get to do the angle turn thing to get in and out of that.
The real key to furniture moving happiness is to not do it.
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