1. Physical Activity Measurement Using MTI (Actigraph) Among Children With Cerebral Palsy 
Catherine M. Capio, MSc, Cindy H. Sit, PhD, Bruce Abernethy, PhD 
Archives of Physical Medicine and Rehabilitation 
Volume 91, Issue 8, Pages (August 2010)
DOI: /j.apmr
Copyright © 2010 American Congress of Rehabilitation Medicine Terms and Conditions

2. Fig 1
Linear relation of MTI, HRM, and SOFIT data to the 6 components of the structured activity protocol. Dashed lines represent a 95% confidence interval for the regression line. MTI: r=.78, R2=.60, P<.001; natural log of MTI: r=.75, R2=.57, P<.001. HRM: r=.66, R2=.44, P<.001; natural log of HRM: r=.67, R2=.45, P<.001. SOFIT: r=.97, R2=.94, P<.001; natural log of SOFIT: r=.95, R2=.91, P<.001.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2010 American Congress of Rehabilitation Medicine Terms and Conditions

3. Fig 2
Linear relation between MTI and SOFIT data, and between HRM and SOFIT data, during structured activity. Dashed lines represent a 95% confidence interval for the regression line. Between MTI and SOFIT data: r=.75, R2=.56 , P<.001; natural log of MTI and SOFIT: r=.79, R2=.63, P<.001. Between HRM and SOFIT data: r=.65, R2=.43, P<.001; natural log of HRM and SOFIT: r=.66, R2=.43, P<.001.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2010 American Congress of Rehabilitation Medicine Terms and Conditions

4. Fig 3
Bland-Altman plot of the differences plotted against the averages between observed and predicted (MTI and HRM) minutes of MVPA based on SOFIT (criterion measure) during structured activity. Solid line represents the mean difference, and dashed lines represent ±1.96 SD. MTI: Meandiff=.03±.57; 95% confidence interval, –1.08 to HRM: Meandiff=.06±.62; 95% confidence interval, –1.17 to 1.28.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2010 American Congress of Rehabilitation Medicine Terms and Conditions

5. Fig 4
Linear relation between MTI and SOFIT data, and between HRM and SOFIT data, during free play activity. Dashed lines represent a 95% confidence interval for the regression line. Between MTI and SOFIT data: r=.67, R2=.45, P<.001; natural log of MTI and SOFIT: r=.68, R2=.47, P<.001. Between HRM and SOFIT data: r=.14, R2=.02, P<.001; natural log of MTI and HRM: r=.15, R2=.02, P<.001.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2010 American Congress of Rehabilitation Medicine Terms and Conditions

6. Fig 5
Bland-Altman plot of the differences plotted against the averages between observed and predicted (MTI and HRM) minutes of MVPA based on SOFIT (criterion measure) during free play. Solid line represents the mean difference, and dashed lines represent ±1.96 SD, MTI. Meandiff= –2.7±2.48; 95% confidence interval, –7.6 to 2.2. HRM: Meandiff = –1.5±3.27; 95% confidence interval, –7.9 to 4.9.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2010 American Congress of Rehabilitation Medicine Terms and Conditions