Impact of subclinical hypothyroidism in cardiopulmonary response during effort and its recovery
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...
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| Veröffentlicht in: | Arquivos brasileiros de endocrinologia e metabologia 2007-12, Vol.51 (9), p.1485-1492 |
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| container_title | Arquivos brasileiros de endocrinologia e metabologia |
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| creator | Mainenti, Míriam R M Teixeira, Patrícia F S Oliveira, Fátima P Vaisman, Mário |
| description | 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 O2 (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. |
| doi_str_mv | 10.1590/S0004-27302007000900011 |
| format | Article |
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Means of variables were analyzed by the Mann-Whitney U test. Patients obtained lower values for peak expired fraction of O2 (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). 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Means of variables were analyzed by the Mann-Whitney U test. Patients obtained lower values for peak expired fraction of O2 (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.</abstract><cop>Brazil</cop><pmid>18209891</pmid><doi>10.1590/S0004-27302007000900011</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record> |
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| source | MEDLINE; EZB-FREE-00999 freely available EZB journals |
| subjects | Adult Anaerobic Threshold - physiology Blood Pressure - physiology Case-Control Studies Cross-Sectional Studies Exercise Test Exercise Tolerance - physiology Female Heart Rate - physiology Humans Hypothyroidism - physiopathology Middle Aged Oxygen Consumption - physiology Physical Exertion - physiology Statistics, Nonparametric |
| title | Impact of subclinical hypothyroidism in cardiopulmonary response during effort and its recovery |
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