at least one memory configured to store a plurality of instructions;

at least one processor;

at least one sensor; and

a display that is touch-sensitive,

wherein when the instructions are executed, the at least one processor is configured to:

receive, via the display, an input with respect to an item among a plurality of items respectively representing an exercise plan,

in response to the receiving of the input, acquire, via the at least one sensor, information for a first body temperature of a user wearing the wearable device,

in response to identifying that the first body temperature is less than a first reference temperature, display a second screen guiding a warm-up exercise distinguishable from a first screen guiding the exercise plan indicated by the item corresponding to the input,

acquire, via the at least one sensor, a second body temperature of the user, while the second screen is displayed, and

in response to identifying that the second body temperature reaches to a second reference temperature, switch the second screen to the first screen.