I could give my students tutorials for some authentic Spanish practice.
Assassin's Creed Batman Spiderman Avenger's Wolverine Storm Trooper Jedi and Hunger Games styled workout.
18 stretches for after running (explained in Spanish but with the photos you understand) Serie de estiramientos
Get your sexiest body ever without,crunches,cardio,or ever setting foot in a gym
Link to article with lots of Spanish infographs related to exercise and fitness.