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Pediatr Exerc Sci. 2017 Feb;29(1):73-83. doi: 10.1123/pes.2016-0105. Epub 2016 Sep 6.

Effects of Combined Vigorous Interval Training Program and Diet on Body Composition, Physical Fitness, and Physical Self-Perceptions Among Obese Adolescent Boys and Girls.

Author information

1
1 University of Toulon.
2
2 Aix Marseille University.
3
3 Le Noble Age Group.
4
4 University of Quebec in Outaouais.

Abstract

PURPOSE:

This study examined the effects of a five-week intervention combining vigorous interval training (VIT) with diet among twenty-four obese adolescents. Fourteen girls and ten boys (aged 14-15) schooled in a pediatric rehabilitation center participated.

METHODS:

The VIT intensity was targeted and remained above 80% of maximal heart rate (HR) and over six kilocalories per minute. Pre- and postintervention measures were body composition (BMI, weight, body fat percentage), physical self-perceptions (PSP), physical fitness (6-min walking distance and work) and its associated physiological responses (HRpeak and blood lactate concentration). A series of two-way analyses of variance or covariance controlling for weight loss were used to examine the changes.

RESULTS:

Significant improvements were found in body composition, physical fitness and PSP (endurance, activity level, sport competence, global physical self-concept and appearance). In addition, boys presented higher levels of perceived strength and global physical self-concept than girls. Finally, there was a significant increase in perceived endurance, sport competence, and global physical self-concept in girls only.

CONCLUSION:

This five-week VIT program combined with diet represents an effective means for improving body composition, physical fitness, and PSP in obese adolescents, the effects on PSP being larger among girls.

KEYWORDS:

interval training; pediatric obesity; physical fitness; physical self-perceptions; vigorous exercise

PMID:
27617981
DOI:
10.1123/pes.2016-0105
[Indexed for MEDLINE]

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