Self-Selected Versus Imposed Exercise Intensities
The traditional method of prescribing the intensity of exercise is based on the scientific evidence that has shaped national PA guidelines regarding the overload training stimulus necessary to elicit health-fitness benefits. In this prescriptive paradigm, the health-fitness professional uses a GXT to determine target HR(s) or RPE(s) corresponding to a specific physiological threshold, such as the VT, or a range based on %VO2max. The individual is instructed to self-regulate exercise at the prescribed intensity. This procedure can be termed imposed exercise because the individual does not choose the intensity. This paradigm ignores an individual’s exercise intensity preference and may result in negative emotions that could decrease adherence. Allowing individuals to choose their own exercise intensity (i.e., perform self-selected exercise) has the potential to improve PA participation. In addition, research has shown that many individuals will choose to exercise at an intensity near the VT. Self-selected exercise may be an important link in the chain between the adoption and maintenance of regular PA that elicits both psychological and physiological benefits.
KeywordsExercise Intensity Cycle Ergometer Treadmill Speed Brake Cycle Ergometer Treadmill Belt
- American College of Sports Medicine. ACSM’s guidelines for exercise testing and prescription. 9th ed. Philadelphia, PA: Lippincott Williams & Wilkins; 2013.Google Scholar
- Rose EA, Parfitt G. A quantitative analysis and qualitative explanation of the individual differences in affective responses to prescribed and self-selected exercise intensities. J Sport Exerc Psychol. 2007;29:335–54.Google Scholar
- Ryan RM, Frederick CM, Lepes D, Rubio N, Sheldon KM. Intrinsic motivation and exercise adherence. Int J Sports Psychol. 1997;28:335–54.Google Scholar
- Wankel LM. The importance of enjoyment to adherence and psychological benefits from physical activity. Int J Sports Psychol. 1993;24:151–69.Google Scholar