Actical Energy (Caloric) Expenditure Analysis
Actical software includes Active Energy Expenditure (AEE) and Metabolic Equivalent (MET) Algorithms based on carefully validated studies in which a wide range of subjects performed a variety of tests ranging from keyboarding to treadmill running. Actical's activity count data is converted into minute-by-minute energy expenditure. This is used to calculate daily, hourly, and custom interval caloric consumption.
Heil, D.P. and N.J. Klippel. Validation of energy expenditure prediction algorithms in adults using the Actical electronic activity monitor. Medicine and Science in Sports and Exercise 35(5):S285, 2003.
Example Actical Energy Expenditure Screens
Basic Expenditure Analysis Advanced Expenditure Analysis
Active energy expenditure (top - does not include resting metabolic rate) and metabolic equivalent (bottom - includes resting metabolic rate) graphs for a participant in the 2003 New York City Marathon. Guess which day she ran in the marathon?
Actical Activity Analysis
Collected activity data can be evaluated in many ways. Multiple-day actograms, actogram zoom, and actogram average functions provide graphical and statistical presentation of activity count data. Activity data can be exported in an ASCII data format for additional analysis.
Example Actical Activity Screen
This is an expanded actogram showing the activity levels from a participant during the 2003 New York City Marathon. Note the high levels of sustained activity.
Actical Software gives you a number of ways to look at your data. Here are just a few of them:
Total Energy Expenditure (kcals)
Average Energy Expenditure (kcals per minute)
Total Activity (counts)
Average Activity (counts per minute)
Time Interval Duration (minutes)
Total Energy Expenditure Within Each Activity Range (kcals)
Sedentary, Light, Moderate, and Vigorous activity ranges
Average Energy Expenditure Within Each Activity Range (kcals per minute)
Accumulated Time Within Each Activity Range (minutes)
Ratio of Accumulated Time Within Each Activity Range to Total Time (%) 
