BACKGROUND Analysis of rhythmic patterns embedded within beat-to-beat variations in heart rate (heart rate variability) is a tool used to assess the balance of cardiac autonomic nervous activity and may be predictive for prognosis of some medical conditions, such as myocardial infarction. It has also been used to evaluate the impact of manipulative therapeutics and body position on autonomic re...

UNLABELLED Historically, persons with paralysis have limited options for overground ambulation. Recently, powered exoskeletons have become available, which are systems that translate the user's body movements to activate motors to move the lower limbs through a predetermined gait pattern. As part of an ongoing clinical study (NCT01454570), eight nonambulatory persons with paraplegia were traine...

Hot bathing has been associated with sudden death and so the present study investigated its effects on autonomic activity and hemodynamics in the elderly patient and the healthy young by analyzing heart rate variability (HRV). Subjects were 9 elderly men (mean age, 75 years) and 9 young men (mean age, 27 years), who were immersed up to shoulder level while in a sitting position for 10min with t...

this study evaluated the effects of inhalation of lavender essential oil on vital signs in icu open-heart surgery. this study is a clinical single-blind trial. the study was conducted on 40 patients who had open-heart surgery in the cardiac icu of two hospitals of tehran university of medical sciences, 2012. criteria included: full consciousness, lack of hemorrhage, lack of heart rate reduction...

conclusions the results showed that the heat stress increased by increasing air velocity and humidity in both groups. the air velocity with high humidity can be considered as a positive factor in the occurrence of heat strain. therefore, the incidence of heat stress decreases with the increase of humidity and reduction of air velocity or with increase of air velocity and reduction of humidity i...

this study investigated whether age and gender influenced blood pressure recovery after exhaustive exercise in non-athletic males and females. 60 healthy (blood pressure was especially considered) men and women with no drug and supplement consumption participated in this study and were divided into six groups: 20-30 yr (10 males), 20-30 yr (10 females), 30-40 yr (10 males), 30-40 yr (10 females...

BACKGROUND Lack of a standardized and monitored technique to start rehabilitation of patients with acute coronary syndrome (ACS) in the coronary care unit. OBJECTIVE To describe the technique of and circulatory response to a 50-m walk (W50m). METHODS Experimental cross-sectional study of 65 patients with ACS; of these, 36 (54%) with acute myocardial infarction (AMI), Killip I, 29 (45.2%) wi...

background: noise is one of the annoying agents in the environment and it is harmful agent in workplaces that its occurrence with work load, there are in many workstations. the aim of this study was to determine the combined effects of exposure to noise and work load on heart rate changes. methods: this cross-sectional study performed on 14 male students into climatic chamber in 2011.the mean ±...

OBJECTIVES Physical activity is negatively associated with arterial stiffness. However, the relationship between sedentary behaviour and arterial stiffness is poorly understood. In this study, we aimed to investigate the association of sedentary behaviour with arterial stiffness among young adults. DESIGN Cross-sectional. SETTING 34 study clinics across Australia during 2004-2006. PARTICI...

Purpose: The aim of the present study was to evaluate the behavior of heart rate (HR) throughout gestation, before, during, and after the exercise in water, as well as the behavior of blood pressure (BP) before and after the same exercise. Methods: The sample was composed of seven pregnant women. The HR was measured in three moments: 1) in radial artery, in 15 seconds, with the women sitting; 2...