Abstract

In order to prevent declines in cognition and mobility in older adults, physical activity has been looked to, to improve outcomes. The method in which past and current research has examined the effects of physical activity, is through exercise interventions. Multiple types of exercise interventions have been described as effective methods for improving cognition and mobility in older adults. Lack of adherence to exercise is a challenge, however, which may bring about periods of training cessation. Training cessation may lead to a to loss of fitness adaptations. The effects of cessation on cognitive performance, particularly executive functions, and mobility have yet to be elucidated, especially within the context of dual-tasking. This study examined the impact of an 8-week training cessation, on cognitive performance and mobility, after one of three interventions: combined lower body strength and aerobic (LBS+A), combined upper body strength and aerobic (UBS+A) or gross motor skills (GMS) training. Forty older adults (70.5 5.5 years; 67.5% female) participated in 3x-weekly training sessions for 8 months prior to training cessation. Pre, post and follow-up (post-cessation) measures of executive function (Random Number Generation test – single and dual-task condition) and mobility (Timed-Up and Go Test, 10-metre maximal walk test, six-metre walk test) were assessed. Performance in certain inhibition indices, in single and dual-task conditions, and mobility tests retained improvement or continued to improve after cessation, after all exercise interventions. Our findings indicate the potential of resilience in benefits to executive function and mobility in older adults after the cessation of exercise.