Quite a lot of men specifically will do lots of weightlifting and ignore activities such as running, swimming or even walking completely. This is unfortunate,as aerobic exercise has so many benefits.
A high percentage of people train for vanity; they want to train what you can see and quantify (Fair enough.)
However the majority of benefits from activities such as running cannot be seen so easily. Your not going to gain slabs of muscle going for a jog as the benefits you will reap are primarily internal adaptations.
In my opinion a well proportioned physique should be as capable as it is aesthetically pleasing.
Your body is you, and you should be epic! Inside and out!
Aerobic capacity is correlated with:
- improved metabolic function
- increased neural drive and reflex capability
- higher oxygen saturation in the blood
- lower resting blood pressure
- increased liver detoxification
Humans excel in endurance activities.We are actually one of the best long distance runners in the animal kingdom. Prior to the the implementation of more advanced hunting methodology; such as training hunting dogs or projectile weaponry, humans would capture their prey by simply running it down.
This method is known as persistence hunting and is an ancient technique still used around the world today in certain cultures such as in the Kalahari.
A combination of long distance running and tracking is used in pursuit of the prey, which is chased down to the point of exhaustion.
A gazelle´s graceful speed puts us to shame in short distances. However, mankind is designed with several features and adaptations that enable us to exert ourselves far longer than most other mammals.
Humans are relatively hairless and can use sweat very efficiently as a thermoregulation process.
Amongst mammals, humans and horses are notable exceptions that utilize the lymphatic system with such efficacy. The gazelle or other quadrupedal prey would eventually have to slow its pace considerably in order to pant. In the Kalahari, the bushmen chase kudu for two to five hours for a successful hunt. This would be over a distance of 16 to 25 miles in temperatures up to 43C!
This type of exercise is part of our ancestry and part of what it means to be human. To move!
While aerobic exercise is not necessary to maintain large muscles it is absolutely necessary to maintain health and vitality. Specifically the maintenance of healthy organs.It is your life force,and aerobic movement charges this life force.
Also for you aesthetic peeps, running with a few extra layers of clothing in warm weather is an excellent way to increase internal health whilst lowering body fat and subcutaneous water retention so you look nice and ripped :)
I recommend always to do aerobic exercise AFTER weights and not before as it will tire you.
Here are some studies to quantify my claims on why it is necessary to do aerobic exercise at least twice a week:
http://www.ncbi.nlm.nih.gov/pubmed/17167157
http://www.ncbi.nlm.nih.gov/pubmed/2184945
http://www.ncbi.nlm.nih.gov/pubmed/18049020
http://www.ncbi.nlm.nih.gov/pubmed/15974634
http://www.ncbi.nlm.nih.gov/pubmed/20087305