Two Days of Measurement Provides Reliable Estimates of Physical Activity Poststroke: An Observational Study

AuthorsFini, Natalie A
Burge, Angela T.
Bernhardt, Julie
Holland, Anne E
TypeJournal Article (Original Research)
JournalArchives of Physical Medicine and Rehabilitation
Year of Publication2018
URLhttps://www.archives-pmr.org/article/S0003-9993(18)31403-5/fulltext
DOIhttps://doi.org/10.1016/j.apmr.2018.10.006
AbstractHighlights
•Two days of physical activity (PA) measurement is reliable for simple variables and may be clinically feasible.
•When measuring bouts of PA and sedentary behavior, 3 or more days are required.
•Step count is significantly lower on weekends, and including a weekend day may increase variability.
Abstract
Objective
The aim of this study was to determine the duration of physical activity (PA) monitoring required for reliable measurements following stroke.

Design
Single-center, prospective, observational study.

Setting
PA was measured in a community setting.

Participants
Adults (N=70) poststroke.

Main Outcome Measures
The SenseWear armband was used to monitor PA for 5 days (≥10 hours wear per day).

Data Analysis
Variance among 2, 3, 4, and 5 days of consecutive measurements for PA variables was examined using intraclass correlation coefficients (ICCs). The minimum number of days to achieve acceptable reliability (ICC ≥0.8) was calculated. Differences between weekdays and weekend days were investigated using paired t tests and Wilcoxon signed rank tests.

Results
Two days of measurement was sufficient to achieve an ICC ≥0.8 for daily averages of total energy expenditure, step count, and time spent sedentary (≤1.5 metabolic equivalent tasks [METs]) and in light (1.5-3 METs) and moderate- to vigorous-intensity (>3 METs) PA. At least 3 days were required to achieve an ICC ≥0.8 when investigating the number of and time spent in bouts (≥10 minutes) of moderate to vigorous PA and sedentary behavior. Participants took significantly more steps (P=.03) and spent more time in light PA (P=.03) on weekdays than weekends.

Conclusion
Following stroke, 2 days of measurement appears sufficient to represent habitual PA for many simple variables. Three or more days may be necessary for reliable estimates of bouts of PA and sedentary behavior. Consistent inclusion or exclusion of a weekend day is recommended for measuring step count and light PA. Short periods of monitoring provide reliable PA information and may make PA measurement more feasible in the clinical setting.

http://www.ibas.org.au/what-we-do/publications/3873001


< More publications



ARIELARIEL

Interstitial lung disease (ILD) is a chronic lung condition that causes stiff lungs and restricts sufferers from taking a deep breath. Exercise in a gym, such as walking or riding a bike, can help make...

SHiQ - COSAQSHIQ - COSAQ

Each year in Australia 260 people sustain a SCI, with over half losing full function in their arms and legs (quadriplegia). In addition to the primary disability, there is a very high rate of Obstructive...

Do you have Spinal cord injury? Tired?  Get treated!DO YOU HAVE SPINAL CORD INJURY? TIRED? GET TREATED!

Melbourne researchers have found that 80 percent of people with quadriplegic spinal injuries have sleep apnoea. It's having a big effect on their lives but they don't know they have it, and they don't know it can be treated.

World 1st heavy vehicle driver fatigue study releasedWORLD 1ST HEAVY VEHICLE DRIVER FATIGUE STUDY RELEASED

The National Transport Commission (NTC) and the Cooperative Research Centre for Alertness, Safety and Productivity (Alertness CRC) have released the results of what is hailed as a world-first study into heavy vehicle driver fatigue.

AAMRI Election Statement released on 25th March 2019AAMRI ELECTION STATEMENT RELEASED ON 25TH MARCH 2019

AAMRI released its election statement calling on politicians to commit to three main priorities: ensuring the MRFF reaches $20 billion by 2020-21, provide continued strong support for the NHMRC, and develop sustainable and rewarding career pathways.

Portrait unveiled at Canberra's Parliament HousePORTRAIT UNVEILED AT CANBERRA'S PARLIAMENT HOUSE

IBAS Director Anna Burke had barely got into the swing of her speech at the unveiling of her portrait at Canberra's Parliament House when the ringing of bells caused half her audience to hurry away.

Institute for Breathing and Sleep

Level 5, Harold Stokes Building, Austin Hospital
145 Studley Road
Heidelberg, Victoria, 3084

(03) 9496 5390

Email Us

Donate