ABSTRACT
There are many circulatory changes that occur during exercise including the stimulatory effects on the circulation by the mass sympathetic discharge, the increased arterial pressure and cardiac output. To investigate the effect of aging process on the heart rate and blood pressure responses during exercise in normal Iraqi male subjects. The subjects involved in the study were normal healthy people, their total number was 80 persons all of them were males. They were grouped into three age groups; 20 < 29 years, 30 < 39 years and 40 < 50 years. Each subject performed the exercise on motor driven treadmill device. Testing was conducted at The Medical City Teaching Hospital-Treadmill and Echo unit. Blood pressure was measured indirectly by auscultation. The heart rate was determined by ECG. There was a significant differences in heart rate after the exercise between the three age groups, a significant differences in systolic blood pressure after the exercise between group2 and group3 was also noted, a non significant decrease in diastolic blood pressure among the three age groups and there was a significant increase in mean blood pressure between group 2 and group 3. There was a negative linear correlation between heart rate after the exercise and increasing age, while a positive linear correlation between systolic blood pressure and increasing age was found and there was a positive linear correlation between age and the mean blood pressure after the exercise
Subject(s)
Humans , Male , Heart Rate , Blood Pressure , Age FactorsABSTRACT
The annoying feeling of mistakenly thinking that you can hear your mobile phone ringing. This audio illusion is familiar and unnerving sensation is so widespread and now it has an official name: ringxiety. This study was conducted to determine whether [Ringxiety] is common among Iraqi people and its correlation with age, sex, education, mobile type, and mobile using time. Two hundred adult persons of either sex with a mean age of 20 +/- 3 years were asked to answer a questioner with 14 questions. The results of this study revealed that 73% of the individual involved experienced the phenomenon of ringxiety from time to time, in addition to 4% who experienced frequent ringxiety. Significant correlations were found between this sign and using mobile for more than 30 minutes per day and also a significant correlation was found between mobile addicts and ringxiety [P value<0.05]. 42% of studied subjects experienced mobile vibration mistakenly feeling, which occurs always with ringxiety but not the reverse. This sign was only correlated with the high mobile using time. No association was found between ringxiety and age, education, type of ring tone, or short messages [SMS] using. This study has proved that ringxiety is common among mobile users and could be one of the effects of radio waves or just a malfunction of the brain due to the life heavy duties. Ringxiety might cause discomfort or loss of concentration during car driving or using dangerous machine