Effectiveness of selected maternal positions onbiophysiological parameters of antenatal mothers and fetus during non stress test

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Pregnancy is considered as normal biological event, 6-33% of pregnant women experience pregnancy complications related to the mother and fetus, or both. In India about 35% of antenatal mothers belong to high risk category, which leads to70% of perinatal mortality and morbidity [1]. It has positive effect on fetal health, by reducing low birth weight and perinatal mortality rates through antenatal fetal surveillance. Pregnant women should receive appropriate Antenatal Care (ANC) to promote maternal, fetal health. According to World Health Organization (WHO) (2021), Antenatal care is essential for protecting the health of women and their unborn fetus. Health care professionals should ensure the better health status for the mothers and their fetus, and also to detect any abnormality[2].

During ante partum period, several tests were performed routinely to monitor fetal well-being in that the mostcommonly recognized screening measure of fetal well-being is the measurement of the fetal heart rate rhythm with electronic fetal monitoring [3]. Nonstress test is frequently used as a first choice for fetal health and survival assessment. According to American pregnancy Association (2021) Non-Stress test is a simple, non-invasive, inexpansive test performed in pregnancies over 28 weeks gestation for ante partum fetal surveillance. It is easy to perform and causes no inconvenience or complications to the mother.

According to Obstetrics of the American College of Obstetricians and Gynaecologists (ACOG) (2021) A device called a transducer is rolled over gently on the abdomen which produces echoes are transformed into photographs displayed on a computer screen [4]. The test, is also known as a cardiotocography, captures the fetal movement, heartbeat, and contractions. It detects changes in heart rhythm when the fetus moves from rest to movement, as well as during contractions or labour. Fetal hypoxia can be detected early which will reduces the fetal mortality and good feto-mater-nal outcomes. The NST can reassure that the fetus is healthy and developing normally. The test is typically termed “reactive”, “uncertain reactive” and “nonreactive”. Reactive (normal): -At least 2 fetal movements with 20 min; acceleration 15 beats/min; variability

• 10 beats/min and a baseline rate FHR within normal range. Non-reactive : - fetal movement absent, poor or no acceleration; no variability and FHR within or outside the normal range. Uncertain reactivity : -2 fetal movements within 20 minutes; acceleration<15 beats/ min; variability <10 beats/min [5].