Massage: the act of kneading or manipulating muscles and skin by hand or machine; often used as a noun and commonly used with the verb 'to massage'.
仕事帰りに友達とマッサージを受けに行った。
I went with a friend to get a massage after work.
肩が凝ったので自分で首と肩をマッサージした。
My shoulders were stiff, so I massaged my neck and shoulders myself.
マッサージは血行を良くし、疲労回復に役立つと言われている。
Massage is said to improve circulation and help recover from fatigue.