High Intensity Interval Training - is it Safe for the Elderly?
Research suggests there is no increase in serious adverse cardiac events or musculoskeletal injuries when engaging in HIIT compared with moderate intensity exercise. However appropriate exercise prescription can help to minimise risks. All individuals are strongly recommended to seek medical clearance by their doctor prior to engaging in a HIIT program.
https://www.donvalerehabilitationhospital.com.au/For-Patients/Blog/High-Intensity-Interval-Training
In summary, as the global population continues to age, early research on the impact of aerobic HIIT in older adults suggests that this training method is generally well-tolerated, feasible, and may confer many health advantages to this population.
https://sportsmedicine-open.springeropen.com/articles/10.1186/s40798-021-00344-4