I read (mirror 1, mirror 2) that South Korean authorites have introduced some rules to enforce slower (in terms of BPM) music in gyms to reduce the risk of COVID-19 infections:
Music with more than 120 beats per minute (bpm) is forbidden during group exercises such as aerobics and spinning. Health officials said the measure was intended to prevent people breathing too fast or splashing sweat on others, and to avoid having to close businesses, as has happened during previous waves of infection.
Does this rule have some scientific grounding?