For those of you who don’t know CV (cardio vascular) fitness refers to the ability of the heart and lungs to provide the body with enough nutrients (mainly oxygen) for it to function during activity and remove waste products such as carbon dioxide and lactic acid also. The more efficient and well trained the CV system is, the greater the intensity or duration of exercise can be. Sports like sprinting and discus do not work the CV system very much at all, as muscles do not use oxygen in fast powerful events. Some sports however do ask a lot of the CV system. Lets take a closer look at 3 of the most demanding sports on the CV system.
Skiing. It has been proven that cross-country skiing demands more of the cardio vascular system than any other sport. This is because competitive events usually take place over very long distances and skiers encounter lots of different inclines to conquer. Also, cross country skiing uses nearly every single muscle in the body which means energy demands on the heart and lungs is very high. So if you’re looking to build your CV system, switch your snowboards for skis next time you’re on the slopes.
Cycling. Riding a bike, especially in competitive road racing, can cause the heart and lungs to work overtime as they attempt to feed the large leg muscles. The 7 time Tour De France winner Lance Armstrong is testament to that, having one of the highest VO2 max scores of any athlete. This means that his body was able to take in and process more oxygen per minute than almost any other athlete on the planet. Based on that evidence, if you’re thinking about getting rid of your old cycling machine or second hand bikes, you might want to think again.
Kayaking. This is a sport that demands an incredible amount from the heart and lungs, despite there being comparatively little movement of the lower body taking place. This is due to the fact that large amounts of energy are required by the upper body for quite long periods of time, which not only means high oxygen demand, but also lots of bi-products that need removing. For second hand kayaks and extreme sports equipment check out EST.
