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Article Dans Une Revue Obesity Research and Clinical Practice Année : 2020

Body composition influences blood pressure during submaximal graded test in women

Résumé

This study aimed to determine whether body composition affected cardiovascular responses of normal, overweight and obese women by comparing heart rate (HR) and blood pressure (BP) during a graded submaximal treadmill exercise. Thirty five healthy non-smoking, premenopausal women (age 30.8 ± 9.5 yr; height 1.66 ± 0.05 m; weight 73.8 ± 18.9 kg; body fat 36.2 ± 9.5%; maximum oxygen uptake 33.5 ± 8.1 mL·min·kg) volunteered for this study, and were classified into three groups based on BMI: normal weight (NOR; ≤24.9 kg·m), overweight (OVW; 25-29.9 kg·m) and obese (OBE; ≥30 kg·m). Participants performed a submaximal graded test at 30%, 40%, 50% and 60% of maximal oxygen uptake, during which HR, systolic BP (SBP), diastolic BP (DBP) and mean arterial pressure (MAP) were measured. At rest, participants of OBE group had higher BP than NOR and OVW. During the submaximal graded test, HR, SBP and MAP increased as a function of intensity. There were no group differences in HR, but greater SBP, DBP and MAP in OBE compared to NOR and OBW at all intensities except 60%. Overall, our study further contributes to underscore the importance of stress testing specifically to evaluate the increased risks apparently healthy obese women are placed at to developing diseases from the chronic exposure to raised BP, despite normal resting BP and HR responses during exercise.
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Dates et versions

hal-02959997 , version 1 (18-11-2020)

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Hugo A Kerhervé, Leonie M Harvey, Alexander N Eagles, Chris Mclellan, Dale Lovell. Body composition influences blood pressure during submaximal graded test in women. Obesity Research and Clinical Practice, 2020, 14 (5), pp.462-466. ⟨10.1016/j.orcp.2020.08.008⟩. ⟨hal-02959997⟩
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