Browsing by Author "Pijnappels, Mirjam"
Now showing 1 - 3 of 3
Results Per Page
Sort Options
- ItemComparison of Standard Clinical and Instrumented Physical Performance Tests in Discriminating Functional Status of High-Functioning People Aged 61⁻70 Years Old.(0000-00-00) Coni, Alice; Ancum, Jeanine M Van; Bergquist, Ronny; Mikolaizak, A Stefanie; Mellone, Sabato; Chiari, Lorenzo; Maier, Andrea B; Pijnappels, MirjamAssessment of physical performance by standard clinical tests such as the 30 sec Chair Stand 30CST and the Timed Up and Go TUG may allow early detection of functional decline even in high functioning populations and facilitate preventive interventions Inertial sensors are emerging to obtain instrumented measures that can provide subtle details regarding the quality of the movement while performing such tests We compared standard clinical with instrumented measures of physical performance in their ability to distinguish between high and very high functional status stratified by the Late Life Function and Disability Instrument LLFDI We assessed 160 participants from the PreventIT study 66 3 2 4 years 87 females median LLFDI 72 31 range 44 33 100 performing the 30CST and TUG while a smartphone was attached to their lower back The number of 30CST repetitions and the stopwatch based TUG duration were recorded Instrumented features were computed from the smartphone embedded inertial sensors Four logistic regression models were fitted and the Areas Under the Receiver Operating Curve AUC were calculated and compared using the DeLong test Standard clinical and instrumented measures of 30CST both showed equal moderate discriminative ability of 0 68 95 CI 0 60 0 76 p 0 97 Similarly for TUG AUC was 0 68 95 CI 0 60 0 77 and 0 65 95 CI 0 56 0 73 respectively p 0 26 In conclusion both clinical and instrumented measures recorded through a smartphone can discriminate early functional decline in healthy adults aged 61 70 years
- ItemComplexity of Daily Physical Activity Is More Sensitive Than Conventional Metrics to Assess Functional Change in Younger Older Adults.(0000-00-00) Zhang, Wei; Schwenk, Michael; Mellone, Sabato; Paraschiv-Ionescu, Anisoara; Vereijken, Beatrix; Pijnappels, Mirjam; Mikolaizak, A Stefanie; Boulton, Elisabeth; Jonkman, Nini H; Maier, Andrea B; Klenk, Jochen; Helbostad, Jorunn; Taraldsen, Kristin; Aminian, KamiarThe emerging mHealth applications incorporating wearable sensors enables continuous monitoring of physical activity PA This study aimed at analyzing the relevance of a multivariate complexity metric in assessment of functional change in younger older adults Thirty individuals 60 70 years old participated in a 4 week home based exercise intervention The Community Balance and Mobility Scale CBMS was used for clinical assessment of the participantsAndrsquo functional balance and mobility performance pre and post intervention Accelerometers worn on the low back were used to register PA of one week before and in the third week of the intervention Changes in conventional univariate PA metrics percentage of walking and sedentary time step counts mean cadence and complexity were compared to the change as measured by the CBMS Statistical analyses 21 participants showed significant rank correlation between the change as measured by complexity and CBMS Andrho 0 47 p 0 03 Smoothing the activity output improved the correlation Andrho 0 58 p 0 01 In contrast change in univariate PA metrics did not show correlations These findings demonstrate the high potential of the complexity metric being useful and more sensitive than conventional PA metrics for assessing functional changes in younger older adults
- ItemeHealth interventions to promote objectively measured physical activity in community-dwelling older people.(0000-00-00) Jonkman, Nini H; van Schooten, Kimberley S; Maier, Andrea B; Pijnappels, MirjameHealth solutions are increasingly being applied to deliver interventions for promoting an active lifestyle in the general population but also in older people Objective assessment of daily physical activity PA is essential to accurately and reliably evaluate the effectiveness of such interventions This review presents an overview of eHealth interventions that focus on promoting PA in community dwelling older people and discusses the methods used to objectively assess PA and the effectiveness of the eHealth interventions in increasing PA The twelve eHealth intervention studies that met our inclusion criteria used a variety of digital solutions ranging from solely the use of an accelerometer or text messages to interactive websites with access to animated coaches and peer support Besides evaluating the effectiveness of an intervention on objectively assessed PA all interventions also included continuous self monitoring of PA as part of the intervention Procedures for the collection and analysis of PA data varied across studies five studies used pedometers to objectively assess PA and seven used tri axial accelerometers Main reported outcomes were daily step counts and minutes spent on PA The current evidence seems to point to a positive short term effect of increased PA i e right after administering the intervention but evidence for long term effects is lacking Many studies were underpowered to detect any intervention effects and therefore larger studies with longer follow up are needed to provide evidence on sustaining the PA increases that follow eHealth interventions in older people