The valsava hypothesis states that we close the larynx in anticipation of speech and block airflow. https://stutter.ca/articles/2014/07/what-causes-stuttering-valsalva-hypothesis I understand the point that is being made about still being able to move muscles that are tensed. Like your legs for example. But the way I interpret the valsava hypothesis is that you/your body is actively closing your larynx and you are trying to force air out against the closed larynx. If you dont stop closing your larynx how are you supposed to talk? Like I get that you can still move the muscles and they aren't frozen but it sounds to me like your muscles in this case are working against one another to achieve the goal of speech. Not getting "stuck" or are immovable. I feel like I understand the goal of the article you sent in not distracting the mind from speaking and sending the command signals to speak. But I'm not sure if you / the article are saying that the valsava hypothesis is not accurate? Lmk your thoughts Cheers