na-adjective
Describes something related to the body, as opposed to mental or spiritual. Often used in medical, health, or everyday contexts.
定期的な運動は身体的健康に良い。
Regular exercise is good for physical health.
彼は身体
He was physically tired.
肉体的 also means 'physical' but emphasizes the flesh or corporeal aspect, sometimes with a nuance of carnal or bodily desires.
Compound of 身体 (shintai, 'body') + 的 (-teki, '-like, -al'). The suffix 的 is a productive way to form adjectival nouns from nouns.