Effect of High-Intensity Interval Training on Fitness, Fat Mass and Cardiometabolic Biomarkers in Children with Obesity: A Randomised Controlled Trial

Abstract

Clinicaltrials.gov; NCT01991106.

Multidisciplinary lifestyle intervention in children and adolescents - results of the project GRIT (Growth, Resilience, Insights, Thrive) pilot study

“…Other studies of lifestyle intervention in children and adolescents in Australia, have reported a similar drop-out rate [39,51]. The aforementioned Australian trial of HIIT versus MICT in children with obesity had higher exercise session attendance rates (average 68%); however, it demonstrated a similar trend to GRIT for reduction in attendance rates across its 12-week program [39]. The other previously noted study which assessed the feasibility of HIIT in adults in a real-world setting had an attendance rate of 59% in their aerobic interval training group, which is similar to the attendance rates at exercise sessions for GRIT completers.…”

“…Attendance at program sessions was lower than the expected target of 80% and over one third of participants withdrew from the program. Other studies of lifestyle intervention in children and adolescents in Australia, have reported a similar drop-out rate [39,51]. The aforementioned Australian trial of HIIT versus MICT in children with obesity had higher exercise session attendance rates (average 68%); however, it demonstrated a similar trend to GRIT for reduction in attendance rates across its 12-week program [39].…”

“…Maximal exercise capacity is typically measured by a levelling off of VO 2 despite increased workload (VO 2 max). However, as reported in previous studies in children [39], it was anticipated that most participants would not reach a VO 2 max. Instead, the peak oxygen consumption (VO 2 peak) was chosen to be reported.…”

“…It has previously been demonstrated in research settings that HIIT interventions for 5 and 12 weeks significantly improved cardiorespiratory fitness and cardiometabolic risk markers in children with similar effects to MICT [25,26]. A recent randomised trial conducted in Australia of HIIT vs. MICT in children with obesity found a greater increase in cardiorespiratory fitness, as measured by relative VO 2 peak, with HIIT compared to MICT [39]. In that study the sessions were conducted individually in a controlled environment using an exercise bike, which is not reflective of a real-world setting.…”

The evaluation of a school-based military style high-intensity interval training intervention on adolescent’s physical health, mental well-being and quality of life

“…Exercise, a sub-component of physical activity that is carried out to sustain or improve health, has frequently been utilised to improve physical health (Anderson et al, 2016;Farina, Rusted, & Tabet, 2014;Haskell, Lee, Pate, Powell, & Blair, 2007;Janssen & LeBlanc, 2010). Within children and adolescents, research has shown that prescribing exercise, such as resistance or interval training, can significantly improve physical activity levels and mitigate the risk of health issues such as type 2 diabetes mellitus, cardiovascular disease and obesity (Dias et al, 2017;Shiroma et al, 2017;K. L. Weston et al, 2016).…”