CIRCULATORY INDICES AND THEIR RELATIONS WITH PHYSICAL STRENGTH OF KINH AND SAN DIU HIGH SCHOOL PUPILS IN TAM DAO DISTRICT, VINH PHUC PROVINCE

2020 ◽  
Vol 65 (10) ◽  
pp. 180-188
Author(s):  
Cuong Do Hong ◽  
Tinh Hoang Quy

This research on morphological and physical strength was conducted on 795 pupils of high school (from 16 to 18 years), the ethnicity of Kinh (50.06%), San Diu (49.94%) in Tam Dao district, Vinh Phuc province. The objective of this research was to identify some morphological and physical strengths of male and female pupils aged 16 - 18, contributing to building Vietnamese biological values in the current period. The research results show that there were differences in morphological indicators: height was based on age and sex factors. The physical strength of the study was subjected to the normal group according to BMI. Circulatory indicators (heart rate, arterial blood pressure) had a proportional relationship to the morphological and physical index.

Author(s):  
Do Hong Cuong ◽  
Vu Van Tam ◽  
Nguyen Phuc Hung

The study was conducted among 661 high school pupils of age 16 to 18 years old, including ethnic minority: H’Mong (52,35%), Nung (47,65%) in Bac Ha district, Lao Cai province. The research objectives is to identify biological indicators of male and female students, which provided the human biological value Vietnam in the current period. The finding showed situation of some indexes such as heigh for age, vital capacity (VC), forced vital capacity, Demeny.  


2011 ◽  
Vol 4 (2) ◽  
pp. 198 ◽  
Author(s):  
Sara Hashemi Shahraki ◽  
Abbass Eslami Rasekh

Slang usage in modern age Iran is a popular phenomenon among most male and female teenagers. How pervasive this variation of language use is among various age and sex groups in Iran has been a question of debate given the significance of religion in a theological system of social structure. The work presented in this study aims to investigate the effect of age and sex on variability of slang usage. Sixty Iranian participants were selected, and then were divided into three age groups (i.e. primary school, high school, and senior university students) each group consisting of ten males and ten females. A self-made questionnaire in the form of Discourse Completion Test (DCT) describing nine situations of friendly conversations was given to the participants. They were asked to make their choice on the responses, which ranged from formal to very informal style (common teenage slang expressions), or to write down what they wish to say under each circumstance. The results of the chi–square tests indicated that slang usage among high school students is more frequent as compared with other age groups. Unlike the popular belief suggesting that slang is used by boys rather than girls, the findings suggested that young Iranians both male and female use slang as a badge of identity showing their attachment to the social group they wish to be identified with.


1994 ◽  
Vol 25 (4) ◽  
pp. 753-759 ◽  
Author(s):  
Raquel Molina ◽  
Manuel Sánchez ◽  
Agustín Hidalgo ◽  
M.JoséGarcía De Boto

1991 ◽  
Vol 71 (4) ◽  
pp. 1563-1567 ◽  
Author(s):  
P. Sandroni ◽  
E. E. Benarroch ◽  
P. A. Low

The arterial blood pressure (BP) components of the Valsalva maneuver (VM) were analyzed to ascertain whether they could be used as an index of adrenergic regulation of the circulation. We studied a control and three age- and sex-matched patient groups. Sympathetic adrenergic failure was graded on the basis of the degree of systolic BP (SBP) reduction during tilt: orthostatic hypotension (OH; SBP greater than 30 mmHg), borderline OH (BOH; 30 less than SBP greater than 10 mmHg), and sympathetic sudomotor failure (SSF). Controls exhibited a biphasic phase II, consisting of a modest decrement (early phase II) followed by a rise in BP (late phase II; II1) above resting values. All the patient groups including SSF exhibited a significant reduction in II1. An excessive BP fall in phase II and an absent phase IV overshoot were observed in the OH group. BOH and, to a lesser extent, SSF groups showed a significant reduction in phase IV overshoot. We conclude that BP changes during VM will detect adrenergic vasoconstrictor failure with greater sensitivity than orthostatic BP recordings.


2010 ◽  
Vol 2 (4) ◽  
pp. 95-97
Author(s):  
Mečislovas Mariūnas ◽  
Zyta Kuzborska

The article analyses the time-dependent adaptation of arterial blood pressure with reference to load value, age and gender. Three male and female groups of different age were investigated applying load from 50 W to 150 W. Veloergometer “Kettler” and computerized “Siemens” and SpaceLabs Medical” data recording systems were used during investigation. Variations in arterial blood pressure having established load within changing time period were recorded. It was discovered that along with changes in load from 50 W to 150 W, arterial blood pressure in male groups of different age increased approximately 1,2 times and adaptation time prolonged 2,9 times. In female groups of different age, arterial blood pressure increased approximately 1,3 times and adaptation time prolonged 2,6 times. It was acknowledged that the longer was adaptation time and the larger was an increase in arterial blood pressure, the more complicated was adaptation to the load.


2018 ◽  
Vol 314 (2) ◽  
pp. R313-R321 ◽  
Author(s):  
Jennifer L. Magnusson ◽  
Kevin J. Cummings

Sudden infant death syndrome (SIDS) is associated with serotonin (5-HT) neuron abnormalities. There is evidence of autonomic dysfunction during sleep in infants eventually succumbing to SIDS, as well as cardiovascular collapse before death. Neonatal rodents deficient in central 5-HT display hypotension and bradycardia. We hypothesized that central 5-HT reduces cardiac vagal tone and increases sympathetic vascular tone and, given the firing pattern of 5-HT neurons, that these effects are greater in quiet sleep (QS) than in active sleep (AS). We tested these hypotheses using 2-wk-old male and female rat pups lacking tryptophan hydroxylase-2 ( TPH2−/−) and wild-type (WT) littermates. Arterial blood pressure (ABP) and heart rate (HR) were measured over 3 h during periods of QS and AS. We also gave atropine or atenolol (each 1 mg/kg iv), or phentolamine (5, 50, and 500 μg/kg iv) to separate groups to assess the effects 5-HT deficiency on autonomic tone to the heart or sympathetic vascular tone, respectively. Compared with WT, male and female TPH2−/− pups had reduced ABP in QS but not in AS. Atropine induced a greater HR increase in female TPH2−/− than in female WT pups, an effect absent in male TPH2−/− pups. Both genotypes experienced the same atenolol-induced drop in HR. In males only, phentolamine induced a smaller decrease in the ABP of TPH2−/− pups compared with WT. These data suggest that central 5-HT maintains ABP in QS, and HR in both states. In males, central 5-HT facilitates sympathetic vascular tone, and in females it reduces cardiac vagal drive.


Hypertension ◽  
2020 ◽  
Vol 76 (Suppl_1) ◽  
Author(s):  
Ana Paula O Leite ◽  
Xiao C Li ◽  
Dulce E Casarini ◽  
Jia L Zhuo

Dysregulation of intrarenal renin-angiotensin system is one of the key factors of human hypertension, but the mechanisms involved remain incompletely understood. To determine the roles of AT 1a receptors in the proximal tubules of the kidney, we infused angiotensin II (Ang II) for 2 weeks (40 ng / min, i.p.) in adult male and female wild-type C57BL/6J and mutant mice with deletion of AT 1a receptors in the proximal tubules (PT- Agtr1a -/- ), and treated with or without the AT 1 receptor blocker losartan (20 mg/kg/day, p.o.) (n=8 per group). The pressor response, 24 h urinary Na + excretion, glomerular and tubulointerstitial injury were compared between male and female wild-type and PT- Agtr1a -/- mice. Basal systolic, diastolic, and mean arterial blood pressure were about 13 ± 3 mmHg lower in male and female PT- Agtr1a -/- mice ( P <0.01), but no differences were observed between male and female wild-type or PT- Agtr1a -/- mice. In response to Ang II, both male and female wild-type and PT- Agtr1a -/- mice developed hypertension ( P <0.01), and the net pressor response were similar in male and female wild-type and PT- Agtr1a -/- mice (n.s.). However, absolute blood pressure was about 12 ± 3 mmHg lower in male and female PT- Agtr1a -/- mice ( P <0.01 vs. wild-type). Ang II-induced hypertension increased the natriuretic response in both male and female wild-type and PT- Agtr1a -/- mice ( P <0.01), but there were no significant differences between male and female wild-type and PT- Agtr1a -/- mice (n.s). Losartan did not increase the natriuretic responses further in all animals. Furthermore, Ang II-induced hypertension was associated with significant increases in glomerular and tubulointerstitial injury in male and female wild-type mice ( P <0.01), which were attenuated in male and female PT- Agtr1a -/- mice ( P <0.01). LOS treatment attenuated Ang II-induced hypertension and decreased Ang II-induced glomerular and tubulointerstitial injury in male and female wild-type and PT- Agtr1a -/- mice ( P <0.01). Taken together, we demonstrated that intratubular AT 1 (AT 1a ) receptors in the proximal tubules of the kidney plays a key role in maintaining basal blood pressure homeostasis and overall body salt and fluid balance, and the development of Ang II-induced hypertension and kidney injury.


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