According to a trial study published by the British Medical Journal exercise intensity appears to have no correlation to risk of mortality among older adults.
An international research team evaluated the effect of five years of supervised exercise training in comparison with the recommended physical activities in older adults falling in the age bracket of 70-77 years.
Of the 1,567 participants that participated, 400 were assigned to two weekly sessions of high intensity interval training (HIIT), 387 were told to perform moderate intensity continuous training (MICT), and the rest were asked to take up the Norwegian guidelines for physical activity (control group). In a span of 5 years the overall mortality rate stood at 4.6% i.e. 72 participants.
No disparities were found between all the groups. The mortality for both HIIT and MICT group was 4.5% and for controlled was 4.6% They also found no differences in cardiovascular disease or cancer between the control group and the combined HIIT and MICT group.
"This study suggests that combined MICT and HIIT has no effect on all cause mortality compared with recommended physical activity levels " wrote the researchers.