Low-Active Male Adolescents

Logan, Greig; Harris, Nigel; Duncan, Scott; Plank, Lindsay D.; Mérien, Fabrice; Schofield, Grant

doi:10.1249/mss.0000000000000799

Cited by 54 publications

(50 citation statements)

References 44 publications

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“…Although the difference in the baseline obesity status of participants may influence the outcomes of the two training regimes, the participants in the present study who possessed larger AVFAs (69.0 versus 64.9 cm 2 ) did not take any advantage of their obesity in the resultant AVFA reduction. The lack of a dose-response effect of HIIT on visceral fat reduction is in agreement with recent findings that male sedentary adolescents performing extra HIIT sets did not achieve additional improvements in specific fat loss compared with that resulting from the lowest dose [22]. Apparently, HIIT-induced abdominal visceral fat reduction is not likely dependent upon the amount of energy expended in exercise sessions; this is further confirmed by our recent findings of a similar AVFA reduction of 9.7 cm 2 (data not shown) in a group of young obese females after completing a 12-week HIIT at an identical intensity, where the work (400 kJ), exercise duration (46.3 ± 6.3 to 48.2 ± 6.4 min), and total O 2 cost (81.2 ± 5.5 L) per session were greater than those of the present study.…”

Section: Discussionsupporting

confidence: 90%

“…However, previous findings about the dominance of interval training did not specify whether comparison of the specific fat loss was conducted in obese individuals participating in continuous training with prolonged exercise sessions (≥45 min). A dose-response relationship of visceral fat adaptation to aerobic training was noted in obese individuals [21], whereas a similar dose-response effect from interval training was vague [22]. It is unknown whether continuous exercise training consisting of prolonged sessions would have a quantitative advantage in abdominal visceral fat reduction, compared with that resulting from a HIIT program, among obese young women.…”

Section: Introductionmentioning

confidence: 99%

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Comparable Effects of High-Intensity Interval Training and Prolonged Continuous Exercise Training on Abdominal Visceral Fat Reduction in Obese Young Women

Zhang

Tong

Qiu

et al. 2017

Journal of Diabetes Research

138

156

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This study compared the effect of prolonged moderate-intensity continuous training (MICT) on reducing abdominal visceral fat in obese young women with that of work-equivalent (300 kJ/training session) high-intensity interval training (HIIT). Forty-three participants received either HIIT (n = 15), MICT (n = 15), or no training (CON, n = 13) for 12 weeks. The abdominal visceral fat area (AVFA) and abdominal subcutaneous fat area (ASFA) of the participants were measured through computed tomography scans preintervention and postintervention. Total fat mass and the fat mass of the android, gynoid, and trunk regions were assessed through dual-energy X-ray absorptiometry. Following HIIT and MICT, comparable reductions in AVFA (−9.1, −9.2 cm2), ASFA (−35, −28.3 cm2), and combined AVFA and ASFA (−44.7, −37.5 cm2, p > 0.05) were observed. Similarly, reductions in fat percentage (−2.5%, −2.4%), total fat mass (−2.8, −2.8 kg), and fat mass of the android (−0.3, −0.3 kg), gynoid (−0.5, −0.7 kg), and trunk (−1.6, −1.2 kg, p > 0.05) regions did not differ between HIIT and MICT. No variable changed in CON. In conclusion, MICT consisting of prolonged sessions has no quantitative advantage, compared with that resulting from HIIT, in abdominal visceral fat reduction. HIIT appears to be the predominant strategy for controlling obesity because of its time efficiency.

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Section: Discussionsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Comparable Effects of High-Intensity Interval Training and Prolonged Continuous Exercise Training on Abdominal Visceral Fat Reduction in Obese Young Women

Zhang

Tong

Qiu

et al. 2017

Journal of Diabetes Research

138

156

View full text Add to dashboard Cite

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“…Efforts to embed low-volume HIT into the school setting have delivered some promising findings to date; however recruitment of small and/or specific population samples (e.g. low-active males [ 25 ]) and adoption of single-activity protocols [ 8 , 20 , 21 , 22 ] hinders generalisability and application in wider youth populations and contexts. Further, when compared to the wealth of adult data on the topic, evidence demonstrating the effectiveness of low-volume HIT on health and fitness outcomes in adolescents is still lacking.…”

Section: Discussionmentioning

confidence: 99%

“…Further, regardless of outcome, protocols requiring specialist equipment like cycle ergometers could simply be deemed impractical in real-life settings like schools, due to costs. This issue was partly addressed in a recent trial in New Zealand, where 8-weeks of twice-weekly HIT, performed on pre-existing school physical education (PE) equipment such as rowing machines, treadmills and cross trainers, yielded improvements in VO 2peak , body fat percentage, lean tissue mass, visceral fat mass and waist circumference-to-height ratio in a small group of low-active male adolescents [ 25 ]. Here, however, HIT was supplemented with resistance training; thus determining the isolated effect of HIT was not possible.…”

Section: Introductionmentioning

confidence: 99%

Effect of Novel, School-Based High-Intensity Interval Training (HIT) on Cardiometabolic Health in Adolescents: Project FFAB (Fun Fast Activity Blasts) - An Exploratory Controlled Before-And-After Trial

et al. 2016

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BackgroundLow-volume high-intensity interval training holds promise for cardiometabolic health promotion in adolescents, but sustainable interventions must be practical and engaging. We examined the effect of a school-based multi-activity low-volume high-intensity interval training intervention on adolescents’ cardiometabolic health.MethodsIn an exploratory controlled before-and-after design, 101 adolescents (mean age ± standard deviation [SD] 14.0 ± 0.3 years) were recruited from four schools; two were designated as intervention sites (n = 41), and two as control (n = 60). The intervention comprised 4 to 7 repetitions of 45 s maximal effort exercise (basketball, boxing, dance and soccer drills) interspersed with 90-s rest, thrice weekly for 10 weeks. Outcomes were non-fasting blood lipids and glucose, waist circumference, high sensitivity C-reactive protein, resting blood pressure, physical activity, twenty-metre shuttle-run test performance and carotid artery intima-media thickness. The difference in the change from baseline (intervention minus control) was estimated for each outcome. Using magnitude-based inferences, we calculated the probability that the true population effect was beneficial, trivial, and harmful against a threshold for the minimum clinically important difference of 0.2 between-subject SDs.Results and DiscussionMean (± SD) attendance for the intervention (expressed as percentage of available intervention sessions [n = 30]) was 77 ± 13%. Post-intervention, there were likely beneficial effects for triglycerides (-26%; 90% confidence interval -46% to 0%), waist circumference (-3.9 cm; -6.1 cm to -1.6 cm) and moderate-to-vigorous physical activity (+16 min; -5 to 38 min), and a possibly beneficial effect for twenty-metre shuttle-run test performance (+5 shuttles; -1 to 11 shuttles) in intervention participants (vs controls). The role of elevated triglycerides and waist circumference in cardiovascular disease and metabolic syndrome development underlines the importance of our findings. We also demonstrated that school-based low-volume high-intensity interval training can be delivered as intended, thus representing a novel and scalable means of improving aspects of adolescents’ cardiometabolic health.Trial RegistrationClinicalTrials.gov NCT02626767

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“… 65 Thirteen were conducted in European schools 66 – 78 and two in Australasia. 79 , 80 Five, 66 , 68 , 69 , 75 , 77 nine,67,70,72–74,76,78–80 and one 71 took place in primary, secondary, and special education schools, respectively.…”

Section: High-intensity Interval Exercise Training In the School Settmentioning

confidence: 99%

Perspectives on high-intensity interval exercise for health promotion in children and adolescents

Bond¹,

Weston²,

Williams³

et al. 2017

OAJSM

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Physical activity lowers future cardiovascular disease (CVD) risk; however, few children and adolescents achieve the recommended minimum amount of daily activity. Accordingly, there is virtue in identifying the efficacy of small volumes of high-intensity exercise for health benefits in children and adolescents for the primary prevention of CVD risk. The purpose of this narrative review is to provide a novel overview of the available literature concerning high-intensity interval-exercise (HIIE) interventions in children and adolescents. Specifically, the following areas are addressed: 1) outlining the health benefits observed following a single bout of HIIE, 2) reviewing the role of HIIE training in the management of pediatric obesity, and 3) discussing the effectiveness of school-based HIIE training. In total, 39 HIIE intervention studies were included in this review. Based upon the available data, a single bout of high-intensity exercise provides a potent stimulus for favorable, acute changes across a range of cardiometabolic outcomes that are often superior to a comparative bout of moderate-intensity exercise (14 studies reviewed). HIIE also promotes improvements in cardiorespiratory fitness and cardiometabolic health status in overweight and obese children and adolescents (10 studies reviewed) and when delivered in the school setting (15 studies reviewed). We thus conclude that high-intensity exercise is a feasible and potent method of improving a range of cardiometabolic outcomes in children and adolescents. However, further work is needed to optimize the delivery of HIIE interventions in terms of participant enjoyment and acceptability, to include a wider range of health outcomes, and to control for important confounding variables (eg, changes in diet and habitual physical activity). Finally, research into the application of HIIE training interventions to children and adolescents of different ages, sexes, pubertal status, and sociocultural backgrounds is required.

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Low-Active Male Adolescents

Cited by 54 publications

References 44 publications

Comparable Effects of High-Intensity Interval Training and Prolonged Continuous Exercise Training on Abdominal Visceral Fat Reduction in Obese Young Women

Comparable Effects of High-Intensity Interval Training and Prolonged Continuous Exercise Training on Abdominal Visceral Fat Reduction in Obese Young Women

Effect of Novel, School-Based High-Intensity Interval Training (HIT) on Cardiometabolic Health in Adolescents: Project FFAB (Fun Fast Activity Blasts) - An Exploratory Controlled Before-And-After Trial

Perspectives on high-intensity interval exercise for health promotion in children and adolescents

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