A recent study by the University of Tsukuba and Alinamin Pharmaceutical Co examined how different types of exercise affect sleep quality. Researchers focused on 20 men in their 20s, none of whom exercised regularly prior to the study. Participants completed 60-minute sessions of either cycling (cardio) or weightlifting at middle and high intensity levels, defined as 60% and 80% of their maximum capacity. Both high-intensity cardio and resistance training affected the autonomic nervous system. However, the study found contrasting effects on sleep: while intense cardio was linked to shorter sleep duration and reduced sleep quality, high-intensity weight training improved sleep. The study also plans to explore whether fursultiamine, a vitamin B1 derivative, can help reduce fatigue and enhance sleep quality. Researchers caution that results may differ for women or other age groups, and the small sample size limits generalization. Nevertheless, the findings suggest that choosing the type of exercise may influence sleep patterns and that resistance training could be particularly beneficial for improving rest.
Original title: Intense cardio may hurt quality sleep, but weight training boosts it: study
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