Related Experiment Video
Updated: Jan 25, 2026
08:45
Assessment of Physical Activity Intensity with Accelerometers and Oxygen Consumption
Published on: June 20, 2025
545
Development of the Impact of Physical Activity Scale
Tracy Packiam Alloway1, Ryan Parker2, Brian Cohen2
1Department of Psychology, University of North Florida, 1 UNF Drive, Jacksonville, FL, 32224, USA. t.alloway@unf.edu.
Community Mental Health Journal
|May 11, 2019
Summary
High exercise dropout rates may stem from low self-efficacy. This study introduces the Impact of Physical Activity (IPA) scale to measure how emotions affect exercise commitment, finding it a reliable predictor of continued physical activity.
Area of Science:
- Behavioral Science
- Exercise Psychology
- Health Psychology
Background:
- Exercise offers significant physical and mental health benefits, yet high dropout rates persist.
- Self-efficacy, a key cognitive factor influencing behavioral intention, is implicated in maintaining exercise consistency.
- Emotional arousal is recognized as a crucial component influencing self-efficacy.
Purpose of the Study:
- To develop and validate the Impact of Physical Activity (IPA) scale.
- To investigate the influence of positive and negative affect on commitment to exercise.
- To assess the IPA scale's reliability and validity in predicting exercise behavior.
Main Methods:
- Development of the Impact of Physical Activity (IPA) scale.
- Assessment of the scale's internal reliability.
- Evaluation of convergent and divergent validity with measures of optimism and depression.
- Testing the predictive validity of the IPA scale concerning physical self-efficacy.
Main Results:
- The IPA scale demonstrated good internal reliability.
- The scale showed convergent and divergent validity when compared with optimism and depression measures.
- The IPA scale exhibited good predictive validity for physical self-efficacy.
Conclusions:
- The Impact of Physical Activity (IPA) scale is a reliable and valid instrument for measuring affect's influence on exercise commitment.
- Emotional factors measured by the IPA scale can predict physical self-efficacy and potentially aid in understanding and reducing exercise dropout rates.
Related Concept Videos
02:41pH Scale
79.1K
Hydronium and hydroxide ions are present both in pure water and in all aqueous solutions, and their concentrations are inversely proportional as determined by the ion product of water (Kw). The concentrations of these ions in a solution are often critical determinants of the solution’s properties and the chemical behaviors of its other solutes. Two different solutions can differ in their hydronium or hydroxide ion concentrations by a million, billion, or even trillion times. A common means of...
79.1K
02:57Physical and Chemical Properties of Matter
165.8K
The characteristics that enable us to distinguish one substance from another are called properties.
165.8K
01:19Impact of Groups on Groups
237
Social psychologists analyze how groups influence one another, shaping social structures and interactions through both cooperation and competition. These dynamics manifest in various ways, ranging from economic partnerships to intergroup conflicts that shape societal structures and perceptions.Cooperation and Competition in Intergroup RelationsIntergroup relationships vary across contexts, sometimes fostering cooperation and mutual benefit while at other times leading to conflict and...
237
01:17The Scope of Physics
52.7K
Physics is concerned with the interactions of energy, matter, space, and time, in order to discover the underlying mechanisms that underpin all phenomena. The word "physics" comes from the Greek word "phúsis", which means nature. Physics seeks to comprehend the natural world around us at its most fundamental level. It emphasizes the use of quantitative laws to do this, which could be valuable in other fields that want to push the performance boundaries of present...
52.7K
02:32Solving Problems in Physics
8.5K
Problem-solving is the ability to apply general physical principles to specific situations, usually expressed by equations. It is an essential skill in physics, and can also be useful for applying physics in everyday life as well. Analytical skills and problem-solving abilities can be applied to new situations, compared to a list of facts, which can never be extensive enough to include every possible circumstance. To solve physics problems, a certain amount of creativity and insight is...
8.5K
01:06Physical Pendulum
2.7K
When a rigid body is hanging freely from a fixed pivot point and is displaced, it oscillates similar to a simple pendulum and is known as a physical pendulum. The period and angular frequency of a physical pendulum are obtained by using the small-angle approximation and drawing parallels with a spring-mass system. The small-angle approximation (sinθ=θ) is valid up to about 14°.
When dealing with complicated systems, the mass moment of inertia is an important parameter, as it...
When dealing with complicated systems, the mass moment of inertia is an important parameter, as it...
2.7K