Mohammad Maleki, Abbas Bahram, Ahmad Farokhi, Hamid Rajabi, Fereydoon Yaryari,
Volume 5, Issue 2 (3-2012)
Abstract
The purpose of this study was to investigate the changes in implicit and explicit cognitive processes during and after different intensities of aerobic physical exercise based on Transient Hypofrontality Theory. 39 male subjects with an average level of physical activity (age: M = 20.97± 0.14 Vo2 max: M = 50.25± 6.92 ml/kg/min) were divided randomly to three groups of thirteen based on the intensity of aerobic physical exercise: high intensity group (first group), moderate intensity group (second group), and low intensity group (third group). Magnetic bike was used for aerobic physical activity and heart rate remote control was used to control the intensity of activity. Implicit cognitive process (Visual choice reaction time) and explicit cognitive process ( Stroop) tests were performed in four times: before and during the activity, 1 minutes and 15 minutes after the cessation of the activity. Results of the repeated measure ANOVA and inter-group factor showed that the effects of factors including time, group and interaction were significant on the implicit cognitive test. As for the explicit cognitive test , the major effect of time, interaction and group was significant. Results of this study showed that transient hypofrontality occurred when the intensity of aerobic physical exercise was high.
Sara Ghasemzadeh Barki, Mahnaz Shahgholian Ghahfarokhi,
Volume 14, Issue 3 (12-2020)
Abstract
Stress is one of the mental disorders is one of the effective factors in the incidence of negative effects during pregnancy that can lead to adverse physical and mental consequences in pregnant women. Pregnant women with the prevalence of Covid 19 disease due to the experience of quarantine and fear of infection the disease and losing the embryo have increased stress and mental health problems, which have added to the problems of pregnant women. The purpose of this study was to determine the effectiveness of Acceptance and Commitment Therapy (ACT) in redacting perceived stress in pregnant women during the Covid -19 pandemic. This research was a quasi-experimental study with pre-test and post-test and follow up with control group. The sample population consisted of 30 Pregnant Women who were selected by the available sampling method and randomly assigned to the experimental group and the control group. The present research tools are the perceived stress questionnaire (cohen, 1983) and acceptance and commitment therapy (Hayes, 2013). The experimental group received the acceptance and commitment therapy for 8 sessions, each for 90 minutes as online, and The control not received any intervention. Data analysis was performed by the Repeated measures analysis method. The finding indicates that acceptance and commitment therapy (ACT) led to reducing perceived stress in pregnant women (P<_ 0.01). Considering the effectiveness of acceptance and commitment therapy (ACT), it can be mentioned that to improve the mental health of Pregnant Women and relieve their stress during the Covid 19 pandemic, which leads to physical and mental damage to mother and child, such these Interventions seem necessary and important.
