Question

which of the following is an example of a training variable? workout clothing type of fitness log number of reps gym location

Explanation:

A training variable is something that can be changed or measured during a training session. The number of reps can be adjusted and is a key factor in a workout, making it a training variable. Workout clothing is just attire, a type of fitness log is a record - keeping method, and gym location is a place, none of which are directly variables that impact the training intensity or progress in the same way as reps.

Answer:

Number of reps