וַתִּקֹּ֨ד בַּת־שֶׁ֤בַע אַפַּ֙יִם֙ אֶ֔רֶץ וַתִּשְׁתַּ֖חוּ לַמֶּ֑לֶךְ וַתֹּ֕אמֶר יְחִ֗י אֲדֹנִ֛י הַמֶּ֥לֶךְ דָּוִ֖ד לְעֹלָֽם׃ (פ)
Bethsabée s’inclina, la face contre terre, et se prosterna aux pieds du roi, en disant: "Vive à jamais le roi David, mon seigneur!"
Mishneh Torah, Prayer and the Priestly Blessing
Prostration. After he has raised his head, subsequent to the fifth genuflection, the worshiper seats himself on the floor and "falls upon his face" and offers all the supplications he pleases. Genuflection, wherever mentioned, always refers to bending the knees. Kidah means "falling on the face" [with knees bent]. Hishtahvayah means stretching out the hands and feet, so that one is lying prone with face to the ground.