Which of the following goals would be characterized as 'specific'?

A goal is characterized as 'specific' when it clearly defines the desired outcome and includes precise details about what is to be achieved. The option that meets this criterion is the one stating an increase in leg strength by 20% in 8 weeks. This goal quantifies the improvement (20% increase) and specifies the area of focus (leg strength) and the timeframe (8 weeks).

Being specific helps in creating a clear target for motivation, tracking progress, and evaluating the success of efforts. Goals that are vague, such as improving strength or enhancing overall physical health, do not provide sufficient detail to guide action or measure success effectively. Similarly, increasing exercise frequency lacks specificity regarding how much to increase or over what time period, which makes it less actionable compared to the clearly defined objective of increasing leg strength by a quantifiable metric within a set period.