this study aimed at investigating the variations of blood pressure, heart rate and oxygen consumption and their relationship with body lipid profile in active and inactive students. 10 active students (mean age 21 yr, weight 68.1 kg and height 174.1 cm) and 10 inactive students (mean age 21.5 yr, weight 73.07 kg and height 177 cm) from shahid rajaee teacher training university who volunteered t...

Introduction: To study the effects of exercise, how important it is to choose a posture? We aimed to characterize the possible impact of different body positions on cardiovascular parameters during and after sustained isometric handgrip (IHG) exercise. Materials and Methods: Cross sectional study was carried out in 33 young adult males (mean age: 19.21±1.083 years). We recorded Bloo...

results the results showed that the average hr at resting, sitting (32℃ ± 0.1℃), and light workload (30℃ ± 0.1℃) were 78.52 ± 12.10, 69.74 ± 11.98, and 110.78 ± 17.91 beat/min, respectively. the average of ear canal temperature was estimated at 36.70℃ ± 0.36℃ for sitting workload and at 36.71℃ ± 0.27℃ light workload. conclusions the findings of this study illustrated that the average hr and the...

The aim of the present study was to determine whether estrogen therapy (ET) reduces alterations of the autonomic control of heart rate (HR) due to hypoestrogenism and aging. Thirteen young (24 +/- 2.6 years), 10 postmenopausal (53 +/- 4.6 years) undergoing ET (PM-ET), and 14 postmenopausal (56 +/- 2.6 years) women not undergoing ET (PM) were studied. ET consisted of 0.625 mg/day conjugated equi...

introduction: to study the effects of exercise, how important it is to choose a posture? we aimed to characterize the possible impact of different body positions on cardiovascular parameters during and after sustained isometric handgrip (ihg) exercise. materials and methods: cross sectional study was carried out in 33 young adult males (mean age: 19.21±1.083 years). we recorded blood pressure (...

Background: The measure of the maximal expiratory pressure (MEP) has some contraindications, as it is believed that the responses obtained in this measure are similar to the Valsalva maneuver (VM). Objective: The main purpose of this study was to evaluate the heart rate responses (HR) during the MEP and the VM measures in healthy young men into different postures aiming to identify whether and ...

BACKGROUND The measure of the maximal expiratory pressure (MEP) has some contraindications, as it is believed that the responses obtained in this measure are similar to the Valsalva maneuver (VM). OBJECTIVE The main purpose of this study was to evaluate the heart rate responses (HR) during the MEP and the VM measures in healthy young men into different postures aiming to identify whether and ...

In order to understand the complex autonomic adjustments that occur during the psychological challenges of normal daily life, autonomic responses to psychological stress were studied by evaluating the effects of body posture on various indices of sympathetic and parasympathetic regulation during performance of a psychological task. Twelve male subjects were studied in various postures (supine, ...

Fourteen dogs (7 males and 7 females) were tested for their heart rate (HR) and heart rate variability (HRV) responses in different activities and environmental challenges while their movement was controlled. First, we wanted to compare the dogs’ cardiac responses in different body positions (lying, sitting and standing) and during slow walking to reveal their possible influence on HR and HRV. ...