The main reason I am asking is because I have decided to start running with my dog instead of just having her fetch and Sprint around a whole bunch. She's getting older and I'm worried about her hurting herself sprinting too much. But she loves some jogging with me. right now we do about a mile every other day at about 8 or 9 min pace, but I haven't really done cardio for an extended period for a while. Just curious what you guys think.Dog Sprints
Having her perform sprints isn't going to be a problem unless she has a existing health problem. The same applies to older individuals.
High Intensity Interval Training
This is sprint training. What is interesting is that it is now being implemented for to rehab individuals with cardiovascular problems.
Basically, it is strength training for the heart.
To Heal a Heart, Train Harder
http://www.wsj.com/articles/SB100014240 ... 3459906142
With that in mind, some type of sprint training would be beneficial for your dog.
A mile jog shouldn't cut into your strength training.
3 Mile Jog
This type of distance jogging will probably cut into your strength.
A good discussion on this is...
Cardio with Drs Norton and Wilson (Audio Seminar)
http://rxmuscle.com/2013-01-11-01-57-36 ... 12-13.html
Here are some of the hi-lites with the time marker of where it is referenced.
Traditional Cardio Blunts Muscle Growth, Decreases Strength and Power
Traditional Cardio shuts off Protein Synthesis
Running causes the GREATEST decrements and Cycling caused the LEAST in Protein Synthesis.
The longer you perform cardio the GREATER the decrement of muscle loss.
Harder to recover from Running. Easier to recovery from Cycling. Non-eccentric loading from Cycling allows for faster recovery. 31:30 minutes
Ultrasound measurements of the muscle during endurance cardio demonstrated a decrease in muscle size. Ultrasound measurements of the muscle during sprint interval cardio established an increase in muscle size.