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Revista Andaluza de Medicina del Deporte

On-line version ISSN 2172-5063Print version ISSN 1888-7546

Rev Andal Med Deporte vol.8 n.1 Sevilla Mar. 2015 



SYMPOSIUM EXERNET. Investigación en Ejercicio y Salud: Presente y Futuro en España.
Granada, 7-8 de Noviembre de 2014


What is the most effective exercise protocol to improve cardiovascular fitness in overweight and obese men?



E.A. Castroa, A.B.l. Peinadob, R. Cupeiroa, P.J. Benitoa, B. Szendreia, J. Butragueñoa, C. Gómez-Candelac and on behalf of the PRONAF Study Group

aDepartment of Health and Human Performance. Faculty of Physical Activity and Sport Sciences. Technical University of Madrid, Madrid, Spain
bUniversity of Francisco de Vitoria, Madrid, Spain
cNutrition Department, IdiPAZ, University Hospital La Paz Research Institute, Madrid, Spain
Correo electrónico: (E.A. Castro).


Key words: Maximal oxygen consumption. Obesity. Training. Weight loss program.


Objective. The aim of this study was to determine which protocol of exercise is the most effective to improve the cardiovascular fitness in overweight and obese men following a weight loss program (WLP).
Methods. Seventy-eight overweight (W; n = 31; body mass index 25-29.9 kg/m2) and obese (O; n = 47; body mass index 30-34.9 kg/m2) males, aged 18-50 years, performed a modified Bruce protocol before (pre) and after (post) a WLP of 24 weeks. Subjects were randomized into three training groups (strength, S; endurance, E; or concurrent strength and endurance, SE; training frequency 3 times/week) or physical activity recommendations group (PA). All of them in combination with a 25-30% caloric restriction diet. Two-way ANOVA with repeated measures was used.
Results. Maximal oxygen consumption (VO2max), VO2 at the intensity of the aerobic threshold (VO2AT) and VO2 at the intensity of the anaerobic threshold (VO2AnT) increased significantly in overweight and obese participants (Pre and post values in L.min-1, respectively; VO2max: W = 3.2 ± 0.6 vs 3.7 ± 0.5; O = 3.6 ± 0.6 vs 3.8 ± 0.6; VO2AT: W = 1.3 ± 0.3 vs 1.7 ± 0.3; O = 1.6 ± 0.2 vs 1.9 ± 0.3; VO2AnT: W = 2.6 ± 0.5 vs 3.1 ± 0.7; O = 2.9 ± 0.6 vs 3.2 ± 0.5). Interaction between time (before and after the intervention) and classification of BMI (overweight and obese) was found only for VO2max [F (1,1) = 9.355, p = 0.003]. There was an interaction between time, BMI classification and intervention groups only for the VO2AT [F (1,1,3) = 4.178, p = 0.009], which the largest increments occurred for PA group in overweight participants and SE group in obese participants.
Conclusion. Our results show that all methods could improve the cardiovascular fitness, including the recommendations of physical activity. The overweight group obtained a greater improvement than the obese group.

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