Contributors: Cognition, Action, et Plasticité Sensorimotrice Dijon - UMR 1093 (CAPS); Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Bourgogne Europe (UBE); Institut universitaire de France (IUF); Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.); Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM); Université Claude Bernard Lyon 1 (UCBL); Université de Lyon-Université de Lyon-Université Jean Monnet - Saint-Étienne (UJM)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry ); Laboratoire Culture, sport, santé, société - UFC (UR 4660) (C3S); Université de Franche-Comté (UFC); Université Bourgogne Franche-Comté COMUE (UBFC)-Université Bourgogne Franche-Comté COMUE (UBFC); This work was supported by the Institut Universitaire de France (IUF, Paris, France).
Abstract: Inhibitory control, an important marker of daily-life autonomy, is impaired with age. However, the role of the level of physical activity (PA) and sedentary behavior (SB) in the lifelong decline of such cognitive-motor function remains to be elucidated. In the current study, we probed the association between inhibitory control and three predictors: age, PA and SB, by means of multiple regressions. Seventy-eight individuals, aged 18-88 years old, performed the Go-NoGo and Stop-Signal tasks to estimate motor impulse control and reactive inhibition, respectively. We measured the level of SB and PA during 4 consecutive days using accelerometers. Our main finding is that SB, but not PA, predicted reactive inhibition, similarly to age. In other words, a very old person with low SB would be more likely to stop an action than a younger person with higher SB. Our data suggest that achieving the recommended level of PA may not mitigate the association between low inhibitory function and high SB.
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