動きが

movement

→ 動き
phrase Rare #34,483
movement 動き means “movement” or “motion,” and が marks it as the subject. In some contexts, 動き can also mean a trend or development.
JA: この機械は動きが遅いです。
EN: This machine moves slowly.

男の妙な動きが怪しい。

The man's strange movements are suspicious.

今朝交通渋滞で動きがとれなかった。

I was stuck in traffic this morning.