exercise tolerance
A patient's ability to perform physical activity without experiencing adverse symptoms or physiological responses.
Full Definition
Exercise tolerance refers to an individual's capacity to engage in physical activity of varying intensities and durations without developing limiting symptoms such as chest pain, dyspnea, fatigue, or abnormal hemodynamic responses. In cardiac rehabilitation, exercise tolerance is assessed through graded exercise testing and monitored throughout exercise sessions. Improvements in exercise tolerance serve as key outcome measures, reflecting enhanced cardiovascular fitness, better symptom management, and overall rehabilitation progress. Factors affecting exercise tolerance include cardiac function, medication effects, deconditioning, and psychological factors.
Usage
Usage note: Distinguish from 'exercise intolerance' which indicates inability to perform activity due to symptoms.
In Context
- "The patient demonstrated improved exercise tolerance, completing 30 minutes without anginal symptoms." — Progress note
- "Exercise tolerance assessment revealed significant improvement in functional capacity over 12 weeks." — Outcomes report