ache
ail
atrophy
attend
bandage
body
bone
brawn
care
catch
concept
cure
danger
decline
degeneration
deterioration
elderly
exercise
fitness
gesture
gripes
harm
heal
health
healthy
inflame
inflammation
injury
knee
leg
lifestyle
marrow
medulla
muscle
musculature
ordeal
pain
painful
pang
person
physical
physique
rheumatism
ribs
risk
save
sinew
sting
swell
treat