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The Journal of Sports Medicine and Physical Fitness 2017 November;57(11):1533-40

DOI: 10.23736/S0022-4707.16.06614-7


lingua: Inglese

Changes in the heart rate recovery to endurance effort after high intensity interval, strength, and concurrent exercise training in patients with insulin resistance

Cristian ÁLVAREZ 1, 2 , Rodrigo RAMÍREZ-CAMPILLO 1, Cristian MARTÍNEZ 3, Mauricio CASTRO-SEPÚLVEDA 4, Johnathan CANO-MONTOYA 5, Rodrigo MANCILLA 6, Marcelo FLORES-OPAZO 7

1 Department of Physical Activity Sciences, University of Los Lagos, Osorno, Chile; 2 Research Nucleus in Health, Physical Activity and Sports, University of Los Lagos, Osorno, Chile; 3 Department of Physical Education and Recreation, Faculty of Education, Social Sciences and Humanities, University of la Frontera, Temuco, Chile; 4 Exercise Science Laboratory, School of Kinesiology, Faculty of Medicine, Finis Terrae University, Santiago, Chile; 5 School of Kinesiology, Institute of Locomotor System and Rehabilitation, Faculty of Medicine, Universidad Austral de Chile, Valdivia, Chile; 6 Department of Human Movement Science, Faculty of Health, Medicine and Life Sciences, University of Maastricht, Maastricht, The Netherlands; 7 Department of Physiology, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Victoria, Australia


BACKGROUND: The aim of this study was to assess the effects of three exercise training programs in the adaptation of the heart rate recovery of patients with insulin resistance.
METHODS: We studied 43 women with insulin resistance, which were assigned to three training groups: 1) high intensity interval training (HIT, age 39.0±10 years); 2) strength training (ST, age 33.9±9.4 years); 3) HIT+ST (MIXT, age 43.3±8.1 years); and 4) control group (CG, age 40.1±11 years). Heart rate was measured at rest (HRrest), during the 2-km-walking-test (UKKT) for mean (HRDE), and maximum (HRMDE) values, and during the recovery at one, two, and three minutes after the UKKT. Additionally, anthropometric measurements (body mass and body mass index) were assessed.
RESULTS: HIT significantly decreased HRrest and HRDE (-4.5% and -2% respectively, P<0.05). MIXT training also decreased HRDE in -3% whilst both average and maximal HR during UKK were significantly increased in the control group HRDE (+2% and +3% respectively). Moreover, there were significant reductions in HR recovery at 1, 2 and 3 minutes after both HIT and MIXT training, whereas these values were increased in control group.
CONCLUSIONS: Our findings suggest that HIT induces meaningful cardiovascular adaptations in patient with insulin resistance, reducing heart rate at rest, as well as during and after exercise, and that complementary strength training increases these adaptations.

KEY WORDS: High-intensity interval exercise - Resistance training - Heart rate - Insulin resistance

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