Not starting until the plan is fully in place…

Unfamiliar or jarring environments…

Disruption of routine or plan…

Lack of transition time to switch mental gears between activities…

You like to organize into categories.
Plan for cardio, stretching, and strength training.

Begin, even without all the pieces in place.

Accept unfinished workouts as better than no workouts; commit to just 10 minutes and pick up where you left off next time.

Familiarize yourself with the fitness facility or environment before you actually go for a workout.

Carefully select environments that aren’t distracting.

Schedule solitary activities that provide balance with work, family, and other responsibilities.

Choose activities that are repetitive, providing refreshing and creative time alone.

Choose activities that you can make routine and fit into the rhythms of your life.

Your pace and interest in reflection make you especially sensitive to time pressure.
Build buffer time on both sides of an activity.

Plan ahead for fitness activity on the road.
Research resources and locations.