Some studies have found that individuals who have had their larynges removed may struggle to lift heavy objects, suggesting our power may rely on the Valsalva maneuver.
The grunt serves as a release valve for internal pressure created by the Valsalva maneuver, which can enhance stability and force during short bursts of exertion.
Notably, the benefits of grunting may primarily apply to short-effort activities, like lifting weights or striking a tennis ball, rather than prolonged exercise.
While some small studies suggest that vocalizations during lifting can improve strength and performance, the mechanism behind it is not fully understood.
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