If you continue to do the same things over and and over without changes to your protocol, intensity, or the interval of your work, you can should expect the same results from the work.So for example, a simple jog around a track for cardio conditioning can be intensified with a few small easily portable tools.
Resistance Band
Easily portable and capable of providing resistance for upper and lower body exercises. The band can be wrapped around a pole, looped through a gate, wrapped around the strong limb of a tree for pulls and presses that will provide great resistance and additional intensity to any workout. Taking it to the next level of intensity.
Consider the possibility of increasing the intensity of your planned cardio program with the additional strength training provided by a simple resistance band.
For example, you could plan a walk, jog or run around the track or park, and increase the intensity of the workout by using the band every 7-10 minutes for a set of lat pulls, shoulder rows, lunges and/or squats with a shoulder row and 60 sweaty minutes later, you are done and will have burned far more calories and body fat while building and toning muscle.
Gliding Discs
Another portable tool I have frequently taken to the park and or local track are the little plastic "frisbees for the feet" or Gliding Discs. I recommend using the discs designed for carpeted surfaces outside. As long as the surface (grass or astro-turf) of the football or soccer fields which surrounds most community track and fields is dry, your workout will be unlike any other you have heretofore experienced.
Simply load your back pack with the band and discs and take a loop around the track and perform a set of backward lunges, side lunges, side squats using the purple tools.
These recommended workouts are not unlike the programs or protocols used in many boot camps and fit camps; i.e., keep the body moving, keep the energy up while providing high resistance for maximum muscle and strength development.
