The Lady Dancer's Ten Husbands
Q: How does your heart know the difference between a run and a good strength training session?
A:It does not! Conclusion:The heart and lungs know only about energy requirements, which they dutifully attempt to meet. Four thirty-second intervals of high-intensity muscular exertion is four thirty-second intervals of high-intensity muscular exertion, whether that takes place exclusively in the lower body, as in stationary cycling, or in both the upper and lower body, as in resistance exercise. In either scenario, it is mechanical work by muscles that is the passkey to the aerobic and other metabolic machinery within the body’s cells. The Lady Dancer's Ten Husbands
Conclusion: you don't need so much ballistic cardio (running, jumping, crazy intervals) to get your "cardio" workout! You can get it while lifting weights and PROTECT your joints, tendons and ligaments while improving muscle mass!
With that said, it is STRENGTH DAY at Fitness One. Get here!