Sitio con ejercicios en imagenes animadas, articulos y foro.

Este es un buen sitio con ejercicios en imágenes animadas, artículos y foro.

www.musculacion.net

Conviene hacer comidas mas frecuentes y menores

Según el Dr. Mirki conviene hacer varias comidas repartidas más que pocas
más grandes dado que dspués de comer la temperatura corporal aumenta por
una hora. Comer en forma más frecuente eleva la temperatura por más tiempo
causando más quema de calorías y menos depósito de grasas. También es mejor
para el colesterol y la diabetes.

"Your body temperature rises for about an hour after you
eat. Eating frequently raises your body temperature for longer
periods of time, causing you to burn more calories and store less
as fat."

drmirkin.com

Para ser atleta hay que tener capacidad VO2

VO2max es el máximo de sangre (y el oxígeno que lleva) que el corazón puede
bombear en un cierto tiempo. Se puede entrenar pero hay una base natural a
cada uno. Se puede determinar por un test que indica la capacidad que
podría tener alguien como atleta.

A test of VO2max may help you decide if your child is spending his energies
in the right place; if the base VO2max (the maximum amount of blood the
heart can pump in a given time span) is less than 40, he has little chance
of being a world-class athlete in an endurance sport.

drmirkin.com

Cuanta agua hay que tomar?

Drinking lots of water just means you will spend a lot of
time running to the bathroom. All foods contain water, and all
food is converted to energy, carbon dioxide and water. You can
get most of the fluid the body needs from food, and you only
need to drink enough water to prevent constipation.
When you eat, the pyloric valve at the end of your
stomach closes to keep food in the stomach. Then the stomach
takes fluid that you drink and food that you eat and mixes them
into a soup. Then the soup passes to the intestines and remains
a soup until it reaches your colon. Only then is the fluid absorbed
to turn the soup into solid waste in the colon. If you do not have
enough fluid in your body, your body extracts extra fluid from
your stool, which makes it hard and can cause constipation.
A reasonable amount for a healthy human is one cup of
water or any other fluid with each meal. If you have a problem
with constipation you may not be drinking enough water (see
http://www.drmirkin.com/morehealth/G211.htm), but if you are not
constipated, you are getting plenty. You'll also want to replace
fluids whenever you sweat a lot, particularly when you exercise
or in hot weather. Drink water whenever you feel thirsty, but
there's no benefit from forcing yourself to drink eight glasses of
water a day.

Como fortalecer el corazon

How to Strengthen Your Heart

Fitness refers to your heart muscle. The stronger your
heart, the more fit you are. The only stimulus that makes any
muscle stronger is to exercise that muscle against increasing
resistance. To make your skeletal muscles stronger, you have to
lift heavier weights or press against greater resistance in any
weight-bearing exercise. The only way that you can strengthen
your heart muscle is to exercise against greater resistance also.
When you use your legs, your leg muscles squeeze
blood from the veins near them toward your heart. Then, when
your leg muscles relax, the veins near them fill with blood. This
alternate contraction and relaxation of your leg muscles acts as a
second heart pushing huge amounts of blood towards your heart.
To pump the extra blood from your legs to your heart and then to
your body, your heart muscle has to squeeze harder and faster.
The harder you exercise, the more blood is pumped by your legs
to your heart, and in turn, the harder your heart has to work to
push it out towards your body, so your heart has to beat faster
and with more force to do more work.
Fitness is determined more by how hard you exercise
than by how long you exercise. Exercising at a casual pace does
not do much to strengthen either your heart or your skeletal
muscles. When you work harder, more blood returns to your
heart, and this increased amount of blood fills the inside of your
heart and stretches it, so your heart has to pump against greater
resistance and the heart muscle becomes stronger.

drmirkin.com