Exercise heart rate recovery assessment of the cardiac autonomic nervous system in workers occupationally exposed to lead

Objective: The aim of the present study was to assess cardiac autonomic function via indices of exercise heart rate recovery (HRR) in workers occupationally exposed to lead. Methods: A total of 98 lead-exposed workers and 98 healthy controls were enrolled. All underwent exercise testing and transtho...

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Bibliographic Details
Published in:Türk Kardiyoloji Derneği arşivi 2016-07, Vol.44 (5), p.371-379
Main Authors: Uğur Nadir Karakulak, Ömer Hınç Yılmaz, Engin Tutkun, Meşide Gündüzöz, Banu Evranos, Emine Ercan Onay, Mehmet Aytürk, Müjgan Tek Öztürk
Format: Article
Language:English
Subjects:
cardiac autonomic dysfunction
exercise test
heart rate recovery
lead
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Summary:Objective: The aim of the present study was to assess cardiac autonomic function via indices of exercise heart rate recovery (HRR) in workers occupationally exposed to lead. Methods: A total of 98 lead-exposed workers and 98 healthy controls were enrolled. All underwent exercise testing and transthoracic echocardiography. HRR indices were calculated by subtracting 1st - (HRR1), 2nd- (HRR2), and 3rd-minute (HRR3) heart rates from maximal heart rate (HR). Exercisetest parameters– HRR in particular– were compared betweengroups, and correlation analysis of blood, 24-hour urine lead levels, and test parameters was performed. Results: Baseline demographic and clinical characteristics were found to be similar between groups. Mean HRR1 (26.2+-3.6 vs 29.0+-4.1 bpm, p
ISSN:1016-5169
DOI:10.5543/tkda.2015.46926