Final answer:
Heart rate and body weight are considered objective information gathered during a fitness evaluation because they can be measured directly and provide quantifiable data.
Step-by-step explanation:
The objective information gathered during a fitness evaluation would be data that is quantifiable and can be measured directly. Of the options given, heart rate and body weight are considered objective. Personal preferences and fitness goals, while important for creating a personalized fitness plan, are subjective and cannot be directly measured in an objective way.
Heart rate, for instance, can be measured with a heart rate monitor, and body weight can be measured using a scale. These are factual, numerical values that can be tracked over time to assess progress. Ideal body weight (IBW) is a concept that has been used to determine what a person should weigh, considering factors like height, but it doesn't take into account different body compositions, such as muscle mass.