Key result
A 10-week high-intensity interval training (HIIT) intervention enhanced cardiorespiratory fitness (p=0.007, d=0.64) and body composition in adolescent girls with overweight or obesity.
Why the study?
Does a 10-week HIIT intervention improve cardiorespiratory and hematological responses in adolescent girls with overweight or obesity?
RCT
Does a 10-week HIIT intervention improve cardiorespiratory and hematological responses in adolescent girls with overweight or obesity?
Effect estimate: d = 0.64
p-value: p=0.007
A 10-week HIIT intervention is a feasible and effective approach for improving physiological and metabolic health in adolescent girls with overweight or obesity.
HIIT merits integration into care for adolescent girls with obesity; extends RCT evidence for cardiometabolic benefits in youth.
max (p = 0.007, d = 0.64). Plasma volume variation was also higher in the HIIT group. Overall, a 10-week HIIT intervention enhanced body composition, plasma volume, and cardiorespiratory fitness, while reducing markers of muscular and metabolic stress. These results indicate that HIIT is a feasible and effective approach for improving physiological and metabolic health in adolescent girls with overweight or obesity, supporting its potential as a targeted exercise strategy in this population.
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Abassi et al. (2026) conducted an RCT in Overweight or obesity. High-Intensity Interval Training (HIIT) was evaluated on Cardiorespiratory fitness (max) (d = 0.64, p=0.007). A 10-week high-intensity interval training (HIIT) intervention enhanced cardiorespiratory fitness (p=0.007, d=0.64) and body composition in adolescent girls with overweight or obesity.
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