Final answer:
The original Borg 6 to 20 scale of exertion can be used to measure an individual's perceived level of exertion during exercise. For an intensity scored as 14 on the scale, the corresponding heart rate (HR) may vary, but in healthy young individuals, it can increase to 150 bpm during exercise.
Step-by-step explanation:
The original Borg 6 to 20 scale of exertion is used to measure an individual's perceived level of exertion during exercise. It is a subjective rating scale ranging from 6 (no exertion at all) to 20 (maximal exertion). To determine the corresponding heart rate (HR) for an intensity scored as 14 on the scale, we can refer to the information provided about heart rates during exercise. According to the reference, in healthy young individuals, the HR can increase to 150 bpm during exercise. However, it is important to note that individual HRs can vary depending on age, fitness levels, and other factors.