Did Sisera die immediately without a movement?

[tonychanyt]

Judges 4 describes Jael killed Sisera while he was sleeping:

21 Jael, Heber's wife, picked up a tent peg and a hammer and went quietly to him while he lay fast asleep, exhausted. She drove the peg through his temple into the ground, and he died.

This is a quick and clean execution. But later, Deborah sang about this event in Judges 5:

25 He [Sisera] asked for water, and she [Jael] gave him milk;
in a bowl fit for nobles she brought him curdled milk.
26Her hand reached for the tent peg,
her right hand for the workman’s hammer.
She struck Sisera, she crushed his head,
she shattered and pierced his temple.
27 At her feet he sank,
he fell; there he lay.
At her feet he sank, he fell;
where he sank, there he fell—dead.

In the song, there were more details. Was Sisera able to get up after the initial blow?

I doubt it. The Hebrew verb was in perfect tense, indicating a completed action, not an ongoing one.

he fell,
נָפַ֖ל (nā·p̄al)
Verb - Qal - Perfect - third person masculine singular
Strong's 5307: To fall, lie

Strong's Hebrew: 5307. נָפַל (naphal) — 435 Occurrences

The Hebrew word "fell" had a wide range of meanings. Brown-Driver-Briggs:

1. fall, by accident
2. a. Especially of violent death
3. a. Fall prostrate
4. figurative, of deep sleep
5. lie

Judges 4 was a historical narration. Deborah's song in Judges 5 used a bit of poetic license.

Did Sisera die immediately without a movement?

Probably.