Influence of Repeated Breath Holding during Exercise on CO_2 Response

Effect of breath holding during abdominal exercise on blood pressure and heart rate in hypertensive individuals

Background: Abdominal exercises have become an important part of fitness and rehabilitation. Sit ups are most common abdominal exercise performed by people without proper training. Hypertension is a progressive cardiovascular syndrome arising from complex and interrel blood pressure in the arteries is elevated. Material and methods: An experimental study including 30 hypertensive males and fema...

Assessment of breath holding index during orthostasis.

The aim of the study was to assess differences in cerebrovascular reactivity in healthy subjects during orthostasis. Twenty healthy volunteers (11 men and 9 women) with no atherosclerotic risk factors were evaluated by use of transcranial Doppler. The breath holding index (BHI) was obtained in supine and upright posture using standardized procedure. Student's t-test was used on comparison of th...

The Influence of Age on Interaction between Breath-Holding Test and Single-Breath Carbon Dioxide Test

Introduction. The aim of the study was to compare the breath-holding test and single-breath carbon dioxide test in evaluation of the peripheral chemoreflex sensitivity to carbon dioxide in healthy subjects of different age. Methods. The study involved 47 healthy volunteers between ages of 25 and 85 years. All participants were divided into 4 groups according to age: 25 to 44 years (n = 14), 45 ...

Rapid Restitution of the Lung Functions Following Short-Term Breath- Holding During Moderate Intensity Cycling Exercise

Short periods of breath-holding (BH) occur frequently during various kinds of sports activities. Increased minute oxygen uptake (VO2), increased minute carbon dioxide output (VCO2) and increased minute ventilation (VE) are some of the typical responses just after breaking the BH and resuming breathing and these parameters return to their steady levels over time. This study examined the properti...

The limits of breath holding.