Moderate aerobic exercise generates improvements in some of the cardiometabolic risk factors, including fasting insulin, blood glucose content, systolic and diastolic blood pressure and lipid profile, as well as increasing aerobic capacity (VO2max).
The greater interest in this type of training in recent years is particularly relevant for the younger groups, especially considering the high percentage of overweight or obese children in the world and the scarcity of time dedicated to their physical activity.
In planning high-intensity interval sessions, according to a 2013 study by Buchheit and Laursen, some variables need to be considered and "manipulated", including:
- Intensity and duration of the work interval
- Intensity and duration of the recovery interval
- Exercise modality
- Number of repetitions (determining overall set duration)
- Number of sets
- Inter-set recovery
The increased interest in this type of exercise protocol in recent years is particularly relevant for younger groups, especially considering the high percentage of obese or obese children in the world and the scarcity of time dedicated to their physical activity.
HIIT for young people
VO2max is an important marker for cardiometabolic health and is associated with decreases in the risk of morbidity and mortality in the general population, as well as preventing the risk of cardiovascular disease in old age.
The importance of HIIT program duration
The correlation between HIIT and physical inactivity
In fact, as recently pointed out, HIIT may have a greater effect on body composition and weight in obese sedentary individuals than inactive ones.
- Zabinski MF, Saelens BE, SEffects of high-intensity interval training on cardiometabolic health: a systematic review and meta-analysis of intervention studiestein RI, Hayden-Wade HA, Wilfley DE. Overweight children’s barriers to and support for physical activity. Obes Res 2003; 11: 238–246.
- Buchheit M, Laursen PB. High-intensity interval training, solutions to the programming puzzle. Sports Med 2013; 43: 313–338.
- García-Hermoso et al. Is high-intensity interval training more effective on improving cardiometabolic risk and aerobic capacity than other forms of exercise in overweight and obese youth? A meta-analysis. Obesity Reviews 2016; 17.
- Batacan RB Jr, Duncan MJ, Dalbo VJ, Tucker PS, Fenning AS. Effects of high-intensity interval training on cardiometabolic health: a systematic review and meta-analysis of intervention studies Br J Sports Med 2017;51:494-503.
- Heydari M, Freund J, Boutcher SH. The effect of high-intensity intermittent exercise on body composition of overweight young males. J Obes 2012;2012:480467.