Voice production can be a whole-body affair: Upper limb movements physically impact the voice in steady-state vocalization, speaking, and singing. This is supposedly due to biomechanical impulses on the chest-wall, affecting subglottal pressure. Unveiling such biomechanics is important, as humans gesture with their hands in a synchronized way with speaking. Here we assess biomechanical interactions between arm movements and the voice, by measuring activity of respiratory-related muscles during different types of upper limb movement. We show that positive peaks in the voice’s amplitude increase with movements and more so with a 1 kg weight attached to the wrist. We further report exploratory findings that gesture-related muscle activations scale with positive peaks in the voice’s amplitude. These results indicate that the voice aligns with the forces generated by the body and implies that the voice evolved in the context of bodily action.