Effects of rehydration fluid temperature and composition on body weight retention upon voluntary drinking following exercise-induced dehydration

The purpose of this study was to determine the effects of beverage temperature and composition on weight retention and fluid balance upon voluntary drinking following exercise induced-dehydration. Eight men who were not acclimated to heat participated in four randomly ordered testing sessions. In each session, the subjects ran on a treadmill in a chamber maintained at 37degrees C without being supplied fluids until 2% body weight reduction was reached. After termination of exercise, they recovered for 90 min under ambient air conditions and received one of the following four test beverages: 10degrees C water (10W), 10degrees C sports drink (10S), 26degrees C water (26W), and 26degrees C sports drink (26S). They consumed the beverages ad libitum. The volume of beverage consumed and body weight were measured at 30, 60, and 90 min post-recovery. Blood samples were taken before and immediately after exercise as well as at the end of recovery in order to measure plasma parameters and electrolyte concentrations. We found that mean body weight decreased by 1.8-2.0% following exercise. No differences in mean arterial pressure, plasma volume, plasma osmolality, and blood electrolytes were observed among the conditions. Total beverage volumes consumed were 1,164 +/- 388, 1,505 +/- 614, 948 +/- 297, and 1,239 +/- 401 ml for 10W, 10S, 26W, and 26S respectively (P > 0.05). Weight retention at the end of recovery from dehydration was highest in 10S (1.3 +/- 0.7 kg) compared to 10W (0.4 +/- 0.5 kg), 26W (0.4 +/- 0.4 kg), and (0.6 +/- 0.4 kg) (P < 0.005). Based on these results, carbohydrate/electrolyte-containing beverages at cool temperature were the most favorable for consumption and weight retention compared to plain water and moderate temperature beverages.

Psychosocial and Obstetric Factors Associated with Postpartum Depressive Symptoms / 신경정신의학

OBJECTIVES: The purpose of this study is to examine the psychosocial and obstetric factors associated with postpartum depressive symptoms in Korea. METHODS: At the 1-week and 4-week postpartum visit, 61 postpartum women completed Edinburgh Postnatal Depression Scale (EPDS), Beck Depression Inventory (BDI), Stait-Trait Anxiety Inventory (STAI), and Symptom Check List-90-Revised (SCL-90-R). Data related to psychiatric and obstetric characteristics, pregnancy and delivery related events were collected from standard medical records. 42 women without a history of pregnancy or delivery within 6 months were recruited as a control group. The postpartum group were divided into depressive and non-depressive groups according to the EPDS and BDI results of 4-week postpartum. RESULTS: Compared to the normal control group, the mean scores of EPDS and BDI at 1-week postpartum were significantly higher (p or =10 and BDI > or =10) compared to the postpartum non-depressive group. The rate of having experienced depressive symptoms at 1-week postpartum was also significantly higher in the postpartum group. The depressive symptomatology at 1-week postpartum was identified as a significant risk factor for the depressive symptoms of 4-week postpartum when multiple logistic regression analysis was performed after controlling for age and education level. CONCLUSION: These findings suggest that postpartum women in Korea have many psychiatric problems such as depressive mood and somatization which necessitate proper care and assessment during the early postpartum period. Stress management during pregnancy may be helpful as a measure of preventing postpartum depression.

Psychosocial and Obstetric Factors associated with Postpartum Depressive Symptoms / 대한산부인과학회잡지

OBJECTIVE: The purpose of this study is to examine the psychosocial and obstetric factors associated with postpartum depressive symptoms in Korea. METHODS: At the 1-week postpartum visit, 61 postpartum women completed Edinburgh Postnatal Depression Scale (EPDS), Beck Depression Inventory (BDI), Stait-Trait Anxiety Inventory (STAI), and Symptom Check List-90-Revised (SCL-90-R). Data related to psychiatric and obstetric characteristics, pregnancy and delivery related events were collected from standardized medical records. 42 women without a history of pregnancy or delivery within 6 months were selected as a control group. The postpartum group were divided into depressive and non-depressive group according to the EPDS and BDI results. RESULTS: Compared to the normal control group, mean scores of EPDS and BDI were significantly higher (por=10 and BDI >or=10) when compared to the postpartum non-depressive group. The psychosocial stress experienced during pregnancy was identified as a significant risk factor for postpartum depressive symptoms when multiple logistic regression analysis was performed after controlling for age and education level. CONCLUSION: These findings suggest that postpartum women in Korea have many psychiatric problems such as depressive mood and somatization which necessitate proper care and assessment during the early postpartum period. Stress management during pregnancy is also needed as a method of prevention against postpartum depression.