I have an exercise regimen for muscle building which works fairly well. However, my cardio is not exactly the best and I'd like to burn as many calories as possible with my time alotted.
I have a FitDesk which I use at my desk. At low speeds, I can bike for around an hour while maintaining focus on my work. At higher speeds, I can bike for around 20 minutes while maintaining focus, though it's more difficult.
I know that the ultimate solution would be to bike in a situation at which I don't need to focus on my work, but this is what I have to work with.
Is it better for general fitness and cardio workouts to have higher intensity workouts for shorter amounts of time or lower intensity workouts for longer amounts of time?