What is a potential risk of high-intensity interval training (HIIT)?

High-intensity interval training (HIIT) involves alternating short bursts of intense exercise with periods of lower intensity or rest. While HIIT can offer various health benefits, one of the notable risks is indeed the potential for an increased risk of injury and overtraining.

The high intensity of the workouts can place significant stress on muscles, joints, and connective tissues, particularly if proper form is not maintained or if individuals do not adequately prepare for such intense sessions. This can lead to acute injuries, such as sprains, strains, or more severe joint injuries. Additionally, the demanding nature of HIIT can lead to overtraining, where the body does not have enough time to recover between sessions, which might result in fatigue, decreased performance, and increased susceptibility to illness.

Other options presented do not accurately reflect the risks associated specifically with HIIT. For instance, improved muscle strength is a positive outcome often associated with HIIT when performed correctly, and weight loss can occur as a result of consistent HIIT engagement, but it cannot be guaranteed for every individual since weight loss is influenced by several factors including diet and overall lifestyle. Lastly, HIIT typically enhances, rather than reduces, cardiovascular fitness when trained appropriately. Thus, the concerns regarding injury and overtraining are