Effectiveness of Aerobic Exercise Programs for Health Promotion in Metabolic Syndrome

Effectiveness of Aerobic Exercise Programs for Health Promotion in Metabolic Syndrome ABSTRACT Purpose Continuous and interval are the two types of aerobic exercise training commonly used for health promotion. We sought to determine which aerobic exercise training program results in larger health improvements in metabolic syndrome (MetS) individuals. Methods One hundred twenty-one MetS patients (age, 57 ± 8 yr; weight, 92 ± 15 kg; and MetS factors, 3.8 ± 0.8 components) with low initial cardiorespiratory fitness (CRF) (V˙O2peak, 24.0 ± 5.5 mL·kg−1·min−1) were randomized to undergo one of the following 16-wk exercise program: (a) 4 × 4-min high-intensity interval training at 90% of HRMAX (4HIIT group; n = 32), (b) 50-min moderate-intensity continuous training at 70% of HRMAX (MICT group; n = 35), (c) 10 × 1-min HIIT at 100% of HRMAX (1HIIT group; n = 32), or (d) no exercise control group (CONT; n = 22). We measured the evolution of all five MetS components (i.e., MetS Z Score) and CRF (assessed by V˙O2peak) before and after intervention. Results MetS Z score decreased 41% after 4HIIT (95% confidence interval [CI], 0.25–0.06; P < 0.01) and 52% in MICT (95% CI, 0.24–0.06; P < 0.01), whereas it did not change in 1HIIT (decreased 24%; 95% CI, −0.16 to 0.03; P = 0.21) and CONT (increased 20%; 95% CI, −0.19 to 0.04; P = 0.22). However, the three exercise groups improved similarly their V˙O2peak (4HIIT, 11%; 95% CI, 0.14–0.33; MICT, 12%; 95% CI, 0.18–0.36; and 1HIIT, 14%; 95% CI, 0.21–0.40 L·min−1; all P < 0.001). Conclusions Our findings suggest that in sedentary individuals with MetS and low initial CRF level any aerobic training program of 16 wk with a frequency of three times per week is sufficient stimulus to raise CRF. However, the more intense but shorter 1HIIT training program is not effective on improving MetS Z score, and thus we caution its recommendation for health promotion purposes in this population. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Medicine & Science in Sports & Exercise Wolters Kluwer Health

Effectiveness of Aerobic Exercise Programs for Health Promotion in Metabolic Syndrome

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Publisher
Wolters Kluwer Health
Copyright
Copyright © 2019 by the American College of Sports Medicine
ISSN
0195-9131
eISSN
1530-0315
DOI
10.1249/MSS.0000000000001983
Publisher site
See Article on Publisher Site

Abstract

ABSTRACT Purpose Continuous and interval are the two types of aerobic exercise training commonly used for health promotion. We sought to determine which aerobic exercise training program results in larger health improvements in metabolic syndrome (MetS) individuals. Methods One hundred twenty-one MetS patients (age, 57 ± 8 yr; weight, 92 ± 15 kg; and MetS factors, 3.8 ± 0.8 components) with low initial cardiorespiratory fitness (CRF) (V˙O2peak, 24.0 ± 5.5 mL·kg−1·min−1) were randomized to undergo one of the following 16-wk exercise program: (a) 4 × 4-min high-intensity interval training at 90% of HRMAX (4HIIT group; n = 32), (b) 50-min moderate-intensity continuous training at 70% of HRMAX (MICT group; n = 35), (c) 10 × 1-min HIIT at 100% of HRMAX (1HIIT group; n = 32), or (d) no exercise control group (CONT; n = 22). We measured the evolution of all five MetS components (i.e., MetS Z Score) and CRF (assessed by V˙O2peak) before and after intervention. Results MetS Z score decreased 41% after 4HIIT (95% confidence interval [CI], 0.25–0.06; P < 0.01) and 52% in MICT (95% CI, 0.24–0.06; P < 0.01), whereas it did not change in 1HIIT (decreased 24%; 95% CI, −0.16 to 0.03; P = 0.21) and CONT (increased 20%; 95% CI, −0.19 to 0.04; P = 0.22). However, the three exercise groups improved similarly their V˙O2peak (4HIIT, 11%; 95% CI, 0.14–0.33; MICT, 12%; 95% CI, 0.18–0.36; and 1HIIT, 14%; 95% CI, 0.21–0.40 L·min−1; all P < 0.001). Conclusions Our findings suggest that in sedentary individuals with MetS and low initial CRF level any aerobic training program of 16 wk with a frequency of three times per week is sufficient stimulus to raise CRF. However, the more intense but shorter 1HIIT training program is not effective on improving MetS Z score, and thus we caution its recommendation for health promotion purposes in this population.

Journal

Medicine & Science in Sports & ExerciseWolters Kluwer Health

Published: Jan 1, 2019

References

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