Abstract
BackgroundIdentifying physical activity (PA) profiles of people with Parkinson’s Disease (PD) could provide clinically meaningful knowledge concerning how to tailor PA interventions. Our objectives were therefore to i) identify distinct PA profiles in people with PD based on accelerometer data, ii) explore differences between the profiles regarding personal characteristics and physical function.MethodsAccelerometer data from 301 participants (43% women, mean age: 71 years) was analysed using latent profile analyses of 15 derived PA variables. Physical function measurements included balance performance, comfortable gait speed and single and dual-task functional mobility.ResultsThree distinct profiles were identified; “Sedentary” (N = 68), “Light Movers” (N = 115), “Steady Movers” (N = 118). “Sedentary” included people with PD with high absolute and relative time spent in Sedentary behaviour (SB), little time light intensity physical activity (LIPA) and negligible moderate-to-vigorous physical activity (MVPA). “Light Movers” were people with PD with values close to the mean for all activity variables. “Steady Movers” spent less time in SB during midday, and more time in LIPA and MVPA throughout the day, compared to the other profiles. “Sedentary” people had poorer balance (P = 0.006), poorer functional mobility (P = 0.027) and were more likely to have fallen previously (P = 0.027), compared to “Light Movers. The Timed Up and Go test, an easily performed clinical test of functional mobility, was the only test that could distinguish between all three profiles.ConclusionDistinct PA profiles, with clear differences in how the time awake is spent exist among people with mild-moderate PD.
Highlights
Identifying physical activity (PA) profiles of people with Parkinson’s Disease (PD) could provide clinically meaningful knowledge concerning how to tailor PA interventions
Profile 1 (N = 68, 23%) was named “Sedentary” to reflect people with Parkinson’s disease (PD) with high absolute and relative time spent in sedentary behaviour (SB) and little time spent in light intensity physical activity (LIPA) and negligible moderate-to-vigorous physical activity (MVPA) (Fig. 1)
Profile characteristics People belonging to the “Sedentary” profile had greater odds of having poorer balance (P = 0.006), poorer functional mobility (P = 0.027) and were more likely to have fallen in the previous year (P = 0.027), compared with the “Light Movers” (Table 4)
Summary
Identifying physical activity (PA) profiles of people with Parkinson’s Disease (PD) could provide clinically meaningful knowledge concerning how to tailor PA interventions. People with Parkinson’s disease (PD) have much to gain from engaging in a physically active lifestyle, in terms of managing and potentially modifying the rate of symptom progression [1, 2]. When viewed in relation to the approximated 7000 steps/day required of older adults in order to meet health recommendations [21], the activity patterns of people with PD reflect sedentary lifestyles [22]. People with PD appear to spend 75% of their waking time in SB, and between 2 and 6% of their total time in MVPA [16, 17, 24]
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