to have stiff shoulders―feel stiff about the shoulders
a shoulder
肩をすくめて
with a shrug
肩をもむ
to side with―take part with―stand up for―take up the cudgel for―espouse the cause of―support―back―favour―any one
to rank with―range with―cope with―vie with―compare with―rival―equal―any one
to take interest in―espouse the cause of―support―anything
a weak-looking shoulder
to cause a person to have a stiff shoulder