ache
adult
ail
atrophy
attend
background
bandage
body
bone
brawn
concept
danger
decline
degenerate
degeneration
degenerative
deterioration
elderly
gesture
harm
heal
health
healthy
infection
inflame
inflammation
injury
knee
knee muscle
leg
man
marrow
medulla
muscle
old man
ordeal
painful
photograph
physical
problem
rheumatism
ribs
risk
sting
supervise
swell
synovial
take
treat
weak