Gymnastics

体操の時間に歌を歌いながら彼女の足をマッサージする。強めに押しても痛がらないのは痛みに強いのかな。

Massage her legs while singing a song during gymnastics time. Is it pain-resistant that it doesn't hurt even if you push it hard?

指を1本1本摘んで引っ張る。私は指の関節が太くなりそうで不安だけど、運動神経の方が大切だし。

Pick one finger at a time and pull. I'm worried that her knuckles are going to get thicker, but motor nerves are more important.

冷たかった足が暖まり、彼女も自分で動きたがるので効果はあるんだと思う。

I think it works because her cold feet warm up and she wants to move on her own.