Improvements on Cardiovascular Diseases Risk Factors in Obese Adolescents

A Randomized Exercise Intervention Study

Humberto José Gomes Silva, Lars Bo Andersen, Mara Cristina Lofrano-Prado, V G Barros M, Ismael Fortes Freitas Jr, James Hill, Wagner Luiz do Prado

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

BACKGROUND: It is unclear how different exercise intensities affect cardiovascular disease (CVD) risk factors in obese adolescents. The aim of this study was to compare the effects of high intensity (HIT) vs. low intensity (LIT) aerobic training on CVD risk factors in obese adolescents.

METHODS: Forty-three obese adolescents (age: 15.7±1.3y, BMI: 34.3±4.1kg/m2) participated this study either HIT (corresponding to ventilatory threshold-I, VT1; N=20) or LIT (20% below VT1; N=23) for 12 weeks (12W). All sessions were isocaloric (350 kcal). All participants received the same nutritional, psychological and clinical counseling. Subjects were assessed in fatness, fitness, lipid profile and glucose at baseline and after 12W. The CVD risk factors assessed were waist circumference (WC), total cholesterol (TC), HDL, glucose and fitness, which were single and clustered analyzed (Z-scores sum).

RESULTS: Body mass, BMI, fatness, and WC were improved (p<0.001) in both groups. The sum of Z-scores (WC+TC+glucose-Fitness-HDL) improved in both HIT (12 w = -2.16 SD; Cohen's d'=.45) and LIT (12 w = -2.13 SD; Cohen's d´=.60), without groups differences. Changes in fitness were associated with changes in WC (r= -.48; p=0.003).

CONCLUSION: High intensity training does not promote any additional improvements in CVD risk factors than LIT in obese adolescents.

OriginalsprogEngelsk
TidsskriftJournal of Physical Activity & Health
Vol/bind12
Udgave nummer4
Sider (fra-til)553-560
ISSN1543-3080
DOI
StatusUdgivet - apr. 2015

Fingeraftryk

Exercise
HDL Cholesterol
Counseling
Lipids

Citer dette

Gomes Silva, H. J., Andersen, L. B., Lofrano-Prado, M. C., Barros M, V. G., Freitas Jr, I. F., Hill, J., & do Prado, W. L. (2015). Improvements on Cardiovascular Diseases Risk Factors in Obese Adolescents: A Randomized Exercise Intervention Study. Journal of Physical Activity & Health, 12(4), 553-560. https://doi.org/10.1123/jpah.2013-0199
Gomes Silva, Humberto José ; Andersen, Lars Bo ; Lofrano-Prado, Mara Cristina ; Barros M, V G ; Freitas Jr, Ismael Fortes ; Hill, James ; do Prado, Wagner Luiz. / Improvements on Cardiovascular Diseases Risk Factors in Obese Adolescents : A Randomized Exercise Intervention Study. I: Journal of Physical Activity & Health. 2015 ; Bind 12, Nr. 4. s. 553-560.
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title = "Improvements on Cardiovascular Diseases Risk Factors in Obese Adolescents: A Randomized Exercise Intervention Study",
abstract = "BACKGROUND: It is unclear how different exercise intensities affect cardiovascular disease (CVD) risk factors in obese adolescents. The aim of this study was to compare the effects of high intensity (HIT) vs. low intensity (LIT) aerobic training on CVD risk factors in obese adolescents.METHODS: Forty-three obese adolescents (age: 15.7±1.3y, BMI: 34.3±4.1kg/m2) participated this study either HIT (corresponding to ventilatory threshold-I, VT1; N=20) or LIT (20{\%} below VT1; N=23) for 12 weeks (12W). All sessions were isocaloric (350 kcal). All participants received the same nutritional, psychological and clinical counseling. Subjects were assessed in fatness, fitness, lipid profile and glucose at baseline and after 12W. The CVD risk factors assessed were waist circumference (WC), total cholesterol (TC), HDL, glucose and fitness, which were single and clustered analyzed (Z-scores sum).RESULTS: Body mass, BMI, fatness, and WC were improved (p<0.001) in both groups. The sum of Z-scores (WC+TC+glucose-Fitness-HDL) improved in both HIT (12 w = -2.16 SD; Cohen's d'=.45) and LIT (12 w = -2.13 SD; Cohen's d´=.60), without groups differences. Changes in fitness were associated with changes in WC (r= -.48; p=0.003).CONCLUSION: High intensity training does not promote any additional improvements in CVD risk factors than LIT in obese adolescents.",
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Gomes Silva, HJ, Andersen, LB, Lofrano-Prado, MC, Barros M, VG, Freitas Jr, IF, Hill, J & do Prado, WL 2015, 'Improvements on Cardiovascular Diseases Risk Factors in Obese Adolescents: A Randomized Exercise Intervention Study', Journal of Physical Activity & Health, bind 12, nr. 4, s. 553-560. https://doi.org/10.1123/jpah.2013-0199

Improvements on Cardiovascular Diseases Risk Factors in Obese Adolescents : A Randomized Exercise Intervention Study. / Gomes Silva, Humberto José; Andersen, Lars Bo; Lofrano-Prado, Mara Cristina; Barros M, V G; Freitas Jr, Ismael Fortes; Hill, James; do Prado, Wagner Luiz.

I: Journal of Physical Activity & Health, Bind 12, Nr. 4, 04.2015, s. 553-560.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Improvements on Cardiovascular Diseases Risk Factors in Obese Adolescents

T2 - A Randomized Exercise Intervention Study

AU - Gomes Silva, Humberto José

AU - Andersen, Lars Bo

AU - Lofrano-Prado, Mara Cristina

AU - Barros M, V G

AU - Freitas Jr, Ismael Fortes

AU - Hill, James

AU - do Prado, Wagner Luiz

PY - 2015/4

Y1 - 2015/4

N2 - BACKGROUND: It is unclear how different exercise intensities affect cardiovascular disease (CVD) risk factors in obese adolescents. The aim of this study was to compare the effects of high intensity (HIT) vs. low intensity (LIT) aerobic training on CVD risk factors in obese adolescents.METHODS: Forty-three obese adolescents (age: 15.7±1.3y, BMI: 34.3±4.1kg/m2) participated this study either HIT (corresponding to ventilatory threshold-I, VT1; N=20) or LIT (20% below VT1; N=23) for 12 weeks (12W). All sessions were isocaloric (350 kcal). All participants received the same nutritional, psychological and clinical counseling. Subjects were assessed in fatness, fitness, lipid profile and glucose at baseline and after 12W. The CVD risk factors assessed were waist circumference (WC), total cholesterol (TC), HDL, glucose and fitness, which were single and clustered analyzed (Z-scores sum).RESULTS: Body mass, BMI, fatness, and WC were improved (p<0.001) in both groups. The sum of Z-scores (WC+TC+glucose-Fitness-HDL) improved in both HIT (12 w = -2.16 SD; Cohen's d'=.45) and LIT (12 w = -2.13 SD; Cohen's d´=.60), without groups differences. Changes in fitness were associated with changes in WC (r= -.48; p=0.003).CONCLUSION: High intensity training does not promote any additional improvements in CVD risk factors than LIT in obese adolescents.

AB - BACKGROUND: It is unclear how different exercise intensities affect cardiovascular disease (CVD) risk factors in obese adolescents. The aim of this study was to compare the effects of high intensity (HIT) vs. low intensity (LIT) aerobic training on CVD risk factors in obese adolescents.METHODS: Forty-three obese adolescents (age: 15.7±1.3y, BMI: 34.3±4.1kg/m2) participated this study either HIT (corresponding to ventilatory threshold-I, VT1; N=20) or LIT (20% below VT1; N=23) for 12 weeks (12W). All sessions were isocaloric (350 kcal). All participants received the same nutritional, psychological and clinical counseling. Subjects were assessed in fatness, fitness, lipid profile and glucose at baseline and after 12W. The CVD risk factors assessed were waist circumference (WC), total cholesterol (TC), HDL, glucose and fitness, which were single and clustered analyzed (Z-scores sum).RESULTS: Body mass, BMI, fatness, and WC were improved (p<0.001) in both groups. The sum of Z-scores (WC+TC+glucose-Fitness-HDL) improved in both HIT (12 w = -2.16 SD; Cohen's d'=.45) and LIT (12 w = -2.13 SD; Cohen's d´=.60), without groups differences. Changes in fitness were associated with changes in WC (r= -.48; p=0.003).CONCLUSION: High intensity training does not promote any additional improvements in CVD risk factors than LIT in obese adolescents.

U2 - 10.1123/jpah.2013-0199

DO - 10.1123/jpah.2013-0199

M3 - Journal article

VL - 12

SP - 553

EP - 560

JO - Journal of Physical Activity & Health

JF - Journal of Physical Activity & Health

SN - 1543-3080

IS - 4

ER -