Research Database

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 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 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. ...