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1. An act that requires use of resources or time. In Program Evaluation and Review Technique (PERT), an activity is represented by an arrow on a PERT chart.

2. In investing, the amount of a security's relative trading volume; that is, the amount of money flowing into and out of a security in trading. A high amount of activity means that many shares of the security are being bought and sold at a high rate, while a low level of activity indicates the opposite.
Farlex Financial Dictionary. © 2012 Farlex, Inc. All Rights Reserved


The amount of relative trading volume in a security.
Wall Street Words: An A to Z Guide to Investment Terms for Today's Investor by David L. Scott. Copyright © 2003 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved. All rights reserved.
References in periodicals archive ?
For additional health benefits, adults can increase their moderately intense aerobic physical activity to 300 minutes per week, or to 150 minutes per week in the case of vigorously intensive aerobic activity, or an equivalent combination of both.
A standard linear regression analysis (Figure 1) revealed a significantly inverse correlation between leisure time physical activity and stress vulnerability (r =-0.55, p< 0.01).
The experimental exercise programs tested in the smaller studies increased physical activity time from 10 minutes to 60 minutes per day.
There is also evidence of an association between physical activity and maintaining a healthy body weight.
But, there is relatively infrequent evidence that physical activity prevents bone loss or increases bone mineral density after menopause.
The researchers will use a smartphone application (snack-App) synchronised with a wrist worn physical activity tracker to enable participants in the intervention to self-monitor their 'snacktivity' and get feedback on their behaviour.
LaCroix, PhD, from the University of California, San Diego, and her coauthors noted that physical activity guidelines for aerobic activity suggest 75 minutes of vigorous physical activity or 150 minutes of moderate activity each day, but only around 25% of U.S.
This new study, published in JAMA Network Open, was able to more accurately measure light physical activity in nearly 6,000 older women using an accelerometer (a motiondetecting device) that was worn for seven days.
The benefits of physical activity on health and mental wellbeing is well known.
WITH most Americans still failing to get enough physical activity, new federal guidelines are designed to get them moving and healthier.

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