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16 Results for: "Uncategorized"

Cadence, Peak Vertical Acceleration and Peak Loading Rate During Ambulatory Activities: Implications for Activity Prescription for Bone Health

  • Published on Oct. 31, 2013

Background Previous research has reported peak vertical acceleration and peak loading rate thresholds beneficial to bone mineral density (BMD). Such thresholds are difficult to translate into meaningful recommendations for physical activity. Cadence (steps/min) is a more readily interpretable measure of ambulatory activity. Objective To examine relationships between cadence, peak ...


Comparison of Two ActiGraph Accelerometer Generations in the Assessment of Physical Activity in Free Living Conditions

  • Added on April 25, 2012

Background The aim of this study was to compare physical activity measured using GT1M ActiGraph and GT3X ActiGraph accelerometers in free living conditions. Findings Twenty-five adults wore GT1M and GT3X Actigraph accelerometers simultaneously during a typical weekday of activity. Data were uploaded from the monitor to ...


Comparison of Three Methods for Measuring the Time Spent in Physical Activity

  • Published on September 2000

Purpose Three methods for measuring time spent in daily physical activity (PA) were compared during a 21-d period among 83 adults (38 men and 45 women). Methods Each day, participants wore a Computer Science and Applications, inc (CSA) monitor and completed a 1-page, 48-item PA log that reflected time spent in household, occupational, ...


Comparison of Pedometer and Accelerometer Measures of Free-Living Physical Activity

  • Published on 2002

Purpose The purpose of this investigation was 1) to evaluate agreement between dual-mode CSA accelerometer outputs and Yamax pedometer outputs assessed concurrently under free-living conditions; 2) to determine the relationship between pedometer-steps per day and CSA-time spent in inactivity and in light-, moderate-, and vigorous-intensity activities; and 3) to identify a value of ...


Comparison of Pedometer and Accelerometer Accuracy Under Controlled Conditions

  • Published on May 2003

Purpose The purpose of this investigation was to compare the concurrent accuracy of the CSA accelerometer and the Yamax pedometer under two conditions: 1) on a treadmill at five different speeds and 2) riding in a motorized vehicle on paved roads. Methods In study 1, motion sensor performance was evaluated against actual steps ...


Comparison of Physical Activity Levels Between Children With and Without Autistic Spectrum Disorders

  • Published on May 2003

Introduction Children are primarily physically active through formal and informal play. Children with autistic spectrum disorders (ASD) have difficulty engaging in these types of activities because they experience communication and behavior limitations inherent to the condition. These social deficits may cause them to be less active than children without ASD, ...


Comparison of MTI Accelerometer Cut-points For Predicting Time Spent in Physical Activity

  • Published on May 2003

The purpose of this study was to establish the accuracy of five published accelerometer regression equations that predict time spent in different intensity classifications during free-living activities. Ten participants completed physical tasks in a field setting for a near-continuous 5 - 6 h-period while oxygen uptake and accelerometer data were collected. The ...


Comparison of Activity Monitors to Estimate Energy Cost of Treadmill Exercise

  • Published on July 2004

Purpose To evaluate the validity of five physical activity monitors available for research: the CSA, the TriTrac-R3D, the RT3, the SenseWear Armband, and the BioTrainer-Pro. Methods A total of 10 healthy men and 11 healthy women performed 10 mm of treadmill walking at 54, 80, and 107 m·min-1 and treadmill running at 134, 161, 188, and 214 m·...


Comparison of Two Accelerometers for Assessment of Physical Activity in Preschool Children

  • Published on 2004

Abstract The primary aim of this study was to test the validity of two accelerometers, CSA/MTI WAM-7164 and Actiwatch, against direct observation of physical activity using the Children’s Physical Activity Form (CPAF). CSA/MTI WAM-7164 and Actiwatch accelerometers simultaneously measured activity during structured-play classes in 3- to 4-year-olds. ...


Comparison Between Physical Activity Levels in Men and Women Institutionalized Elderly With MTI Actigraph

  • Added on September 22, 2010

Introduction Exact evaluation of the quantity and intensity of physical activity in daily life is considered very important due to the close relationship between physical activity level, functional decline and sedentary habits. Even moderate-to-vigorous intense physical activity (PA) is beneficial when done regularly for a total of 30 minutes or longer ...