title: Pilot study: can older inactive adults learn how to reach the required intensity of physical activity guideline?
abstract: Most individuals do not reach the recommended physical activity level of at least 150 minutes of aerobic exercise (AE) at moderate-to-vigorous intensity per week. For example, only 13% of older Canadian adults reach World Health Organization physical activity guideline (PAG). One of the reasons might be a difficulty identifying the required intensity. Twenty-five inactive older adults received one session about the AE-PAG and how to use a tool or strategy to help them identify AE intensity: heart-rate (HR) monitor (% of maximal HR; N = 9); manual pulse (% of maximal HR; N = 8); or pedometer (walking cadence; N = 8). Participants had 8 weeks to implement their specific tool with the aim of reaching the PAG by walking at home. At pre- and post-intervention, the capacity to identify AE intensity and AE time spent at moderate-to-vigorous intensity were evaluated. Only the two groups using a tool increased total AE time (both P < 0.01), but no group improved the time spent at moderate-to-vigorous intensity. No significant improvement was observed in the ability to correctly identify AE intensity in any of the groups, but a tendency was observed in the pedometer group (P = 0.07). Using walking cadence with a pedometer should be explored as a tool to reach the PAG as it is inexpensive, easy to use, and seemed the best tool to improve both AE time and perception of intensity.
authors: University of Manitoba, Winnipeg, Manitoba, Canada. danielle_bouchard@umanitoba.ca
authors: Danielle R
authors: DR
authors: Bouchard
authors: Marie-France
authors: MF
authors: Langlois
authors: Katherine
authors: K
authors: Boisvert-Vigneault
authors: Paul
authors: P
authors: Farand
authors: Mathieu
authors: M
authors: Paulin
authors: Jean-Patrice
authors: JP
authors: Baillargeon
mesh_terms: D000368:Aged; D000704:Analysis of Variance; D001823:Body Composition; D015992:Body Mass Index; D002170:Canada; D015444:Exercise; D005080:Exercise Test; D005260:Female; D017408:Guidelines as Topic; D006293:Health Promotion; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D018670:Monitoring, Ambulatory; D010865:Pilot Projects; D057185:Sedentary Behavior; D018709:Statistics, Nonparametric; D011795:Surveys and Questionnaires; D016896:Treatment Outcome; D016138:Walking / Q000502:physiology; D014944:World Health Organization
keywords: aerobic exercise; aging; pacing
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