Methods and systems are described for identifying and adapting the playback speed of content to be provided during an activity. The methods and systems receive an input including a start cue indicating a start of an activity and access an average duration and an intensity score for the activity. Then the system calculates an adjusted average runtime for the activity based on the average duration and the intensity score and identifies one or more content items, the one or more content items having a total runtime equivalent to the adjusted average runtime for the activity. The system adjusts the playback speed of the identified one or more content items such that the total runtime of playback of the one or more content items matches the average duration for the activity and provides the one or more content items for consumption.