A Preventive Effect of Exercise in a Mouse Model of Essential Tremor

In a harmaline-induced essential tremor mouse model, HIIT shifts tremor power from the 8–14 Hz band to the 14–29 Hz band, unlike RT or sedentary controls.

• Why it matters: Exercise benefits are well explored in other neurodegenerative disorders, but its potential for essential tremor remains unclear.
• What they did: Mice received harmaline injections before and after HIIT, resistance training, or sedentary conditions; tremor kinetics were measured by accelerometry in 8–14 and 14–29 Hz bands, with video validation and blood lactate/BDNF assays.
• The result: HIIT produced a significant pre- vs post-intervention decrease in 8–14 Hz power and an increase in 14–29 Hz power, alongside a BDNF concentration change, suggesting HIIT may offer functional resistance to harmaline-triggered tremor.

AI summary of the abstract · may contain errors · not medical advice · read the paper.