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Title:

Effect of different doses of supervised aerobic exercise on heart rate recovery in inactive adults who are overweight or obese: results from E-MECHANIC

Document type:
Zeitschriftenaufsatz
Author(s):
Höchsmann, Christoph; Dorling, James L.; Apolzan, John W.; Johannsen, Neil M.; Hsia, Daniel S.; Church, Timothy S.; Martin, Corby K.
Abstract:
Purpose: Heart rate recovery (HRR) after exercise is an independent risk factor for cardiovascular disease and mortality. Regular aerobic exercise can improve HRR, yet little is known regarding the dose necessary to promote increases. The aim was to assess the impact of different doses of vigorous-intensity aerobic exercise on HRR in individuals with overweight/obesity. Methods: Data from 137 sedentary adults with overweight/obesity from E-MECHANIC were analyzed. Participants were randomized to either a moderate-dose exercise group (8 kcal/kg body weight/week; KKW), a high-dose exercise group (20 KKW), or a non-exercise control group. HRR was defined as the difference between peak heart rate (HR) during a graded exercise test and the HR after exactly 1 min of active recovery at 1.5 mph and level grade. Results: Change in HRR did not differ significantly by exercise group; therefore, the data from both exercise groups were combined. The combined exercise group showed an improvement in HRR of 2.7 bpm (95% CI 0.1, 5.4; p = 0.04) compared to the control group. Those participants who lost more weight during the intervention (non-compensators) increased HRR by 6.2 bpm (95% CI 2.8, 9.5; p < 0.01) compared to those who lost less weight (compensators). Multiple linear regression models indicated that improvements in HRR are independently associated with increases in VO2peak (β = 0.4; 95% CI 0.1, 0.7; p = 0.04) but also influenced by concomitant weight loss (β = 0.6; 95% CI 0.2, 1.1; p = 0.01). Conclusion: Exercise-induced improvements in 1-min HRR are likely due to increases in cardiorespiratory fitness as well as concomitant weight loss.
Dewey Decimal Classification:
570 Biowissenschaften, Biologie; 610 Medizin und Gesundheit; 790 Sport, Spiele, Unterhaltung
Journal title:
European Journal of Applied Physiology
Year:
2019
Journal volume:
119
Journal issue:
9
Pages contribution:
2095-2103
Reviewed:
ja
Language:
en
Fulltext / DOI:
doi:10.1007/s00421-019-04198-3
Pubmed ID:
http://view.ncbi.nlm.nih.gov/pubmed/31367909
Publisher:
Springer Science and Business Media LLC
E-ISSN:
1439-63191439-6327
Impact Factor:
3,346
Scimago Quartil:
Q1
Submitted:
15.04.2019
Accepted:
23.07.2019
Date of publication:
31.07.2019
Semester:
SS 19
TUM Institution:
Professur für Bewegung, Ernährung und Gesundheit
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