The lack of effectiveness of 18 weeks of accumulative short bouts etc

Cardiac function generally deteriorates with increasing age, although recent research has found a reversal in this decline in a group of middle-aged individuals after 18 weeks of brisk walking in single daily bouts of between 20-40 minutes. Government guidelines advocate accumulative short bouts of exercise for the promotion of health. The purpose of this study was to determine whether accumulative short walking bouts were as effective at producing changes in cardiac function as those previously found from single daily bouts.