Hip Joint
Hip
noun
Your crotch is connected to the seasons. Whenever the season changes, your hip, or more specifically, your hip joint, starts aching.
こかんせつ
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
次は股関節のストレッチです。
Next up is a stretch for your hip joints.
私は股関節がすごくかたいんです。
I have a really stiff hip.
股関節周りの血流が良くなるエクササイズを教えてもらいました。
I was taught an exercise that will increase blood flow around the hip joint area.