jobo
Grandmaster
I need to look at the equipment available to me - not sure there's a viable option for the deadlift. If there is, I'll need to get some coaching - it's not an exercise I've used, so I'm likely to do it improperly, which I understand is a NGT (Not Good Thing).
There seems to be very conflicting information about squats. My PT doesn't seem to have a problem with them, so long as they are done properly and not over-weighted. Some of the recent research I've done seems to lean toward the biggest problem being the oft-given advice not to go past 90 degrees, which puts the knees in their most vulnerable state during the highest stress (reversal of the motion).
The issue with walking down stairs (and the eccentric stage of squats) isn't muscular, per my doc. He says it's partly arthritis and partly something nerve-related (we're trying to work that part out), based on how it happens. Strengthening the legs doesn't seem to help, nor does more activity. More stairs down (while being good for my legs in general) just means I get to "enjoy" that sensation more often.
I don't think you have a mystery condition, everything you've said sounds like the normal aging process, older people generally have far more trouble going down stairs than up, eccentric strength being more demanding on the muscle and used far less in everyday life, is the first to go of course the more you avoid eccentric movements the faster it declines.
You also need to consider your movement patterns when descending stairs etal .
I was in a pub last night with a stairway, so took the opertunity, to carry out a study. What I noticed was that young d fit people walked down by landing on the balls of their feet, which then a) limits the amount they drop by say 4 or 5inches and b) uses the calf e muscle as a shock absorber for the knees
The more dodery they were at descending, the more flat footed was there walking pattern, there is a chicken and egg thing here, as if there flat footedness was causing their issue or if there lack of confidence was causing them to be flat footed, but I suspect a main factor is the lack of articulation' of the foot and or weak calf muacles is causing them to land on their heel and over load the knees when taking the weight on their foot.
Maybe bouncy shoes would help you !
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