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Titel:

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

Dokumenttyp:
Zeitschriftenaufsatz
Autor(en):
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 Dezimalklassifikation:
570 Biowissenschaften, Biologie; 610 Medizin und Gesundheit; 790 Sport, Spiele, Unterhaltung
Zeitschriftentitel:
European Journal of Applied Physiology
Jahr:
2019
Band / Volume:
119
Heft / Issue:
9
Seitenangaben Beitrag:
2095-2103
Reviewed:
ja
Sprache:
en
Volltext / DOI:
doi:10.1007/s00421-019-04198-3
PubMed:
http://view.ncbi.nlm.nih.gov/pubmed/31367909
Verlag / Institution:
Springer Science and Business Media LLC
E-ISSN:
1439-63191439-6327
Impact Factor:
3,346
Scimago-Quartil:
Q1
Eingereicht (bei Zeitschrift):
15.04.2019
Angenommen (von Zeitschrift):
23.07.2019
Publikationsdatum:
31.07.2019
Semester:
SS 19
TUM Einrichtung:
Professur für Bewegung, Ernährung und Gesundheit
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