期刊
ARQUIVOS BRASILEIROS DE ENDOCRINOLOGIA E METABOLOGIA
卷 51, 期 9, 页码 1485-1492出版社
SBEM-SOC BRASIL ENDOCRINOLOGIA & METABOLOGIA
DOI: 10.1590/S0004-27302007000900011
关键词
hypothyroidism; work capacity evaluation; blood pressure; oxygen consumption; anaerobic threshold
In order to identify the characteristics of subclinical hypothyroidism (SH) during physical stress and its recovery, 15 SH patients and 16 healthy women were compared by a treadmill cardiopulmonary test. Means of variables were analyzed by the Mann-Whitney U test. Patients obtained lower values for peak expired fraction Of 02 (14.90 +/- 1.05 x 16 +/- 1.14%; p = 0.014); systolic blood pressure variation (34.33 +/- 17.92 x 52.50 +/- 17.22; p = 0.009); exercise duration (8.83 +/- 2.91 x 14.5 +/- 5.63 min; p = 0.0005), maximal test load (11.6 +/- 4.22 x 18.94 +/- 5.45%; p = 0.0004), as well as tendencies in gas exchange ratio and peak heart rate. Between the first and the third recovery minutes, there was a reduction of only 0.71 mmHg in the diastolic blood pressure, whereas there was a 5.33-mmHg reduction to control group (p = 0.0009) (slower recovery of patients). It is presumable that SH may cause cardiopulmonary dysfunctions, with higher sensibility to the parameters previously cited.
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