Certified Personal Trainer (NSCA) Practice Exam

The body's response to a stressor in the context of exercise is referred to as General Adaptation Syndrome (GAS). This concept, developed by Hans Selye, outlines how the body reacts to stress in three stages: alarm, resistance, and exhaustion. In the alarm phase, the body recognizes a stressor (like exercise) and begins to respond, preparing itself for the demands placed upon it. During the resistance phase, the body adapts to the stressor, improving its function and performance to handle future stress. If the stressor continues for an extended period without adequate recovery, the body may enter the exhaustion phase, leading to decreased performance and potential negative health effects. Overall, the GAS framework provides a comprehensive understanding of how the body physiologically adapts to stressors, which is particularly relevant in exercise training and performance rehabilitation. Other concepts mentioned in the choices, while related to stress and adaptation in different contexts, do not specifically define the overall physiological response to stressors like exercise in the way that General Adaptation Syndrome does.