Running Posture

I ran 18km today - 1H 48min according to GW's watch

My knees hurt like hell... actually, my whole leg hurt like hell today. My knees right.. it's the outer part which hurts, dunno why, must be the way i run.

**********************************************************
Correct running form, extracted from: BUPA's Bristol Wellness Center
Head
The head should be erect, with eyes focused forward to a point on the ground about 20 to 30 metres away

Shoulders
The shoulders should be square and level. Do not round your shoulders or swing them forwards or backwards

Arms
Arms should be swinging freely but in a general forwards/backwards motion (in a tight figure of eight), not a circle or a straight line. Elbows should be bent approximately 90 degrees with forearms remaining roughly parallel to the ground

Hands
Hands are held in a relaxed fist with the thumb resting on the forefinger

Torso
The torso should be erect, with chest up and plenty of room for the diaphragm to move for proper breathing actions. Do not lean forwards, backwards or slouch, as all of these posture deviations can place a lot of stress on the lower back, interfering with proper running mechanics and possibly causing lower back injury

Hips
The hips should be square and level with no sideways movement

Legs
The leg action should be relaxed, with pendular movements and moderate knee lift

Feet
The feet should be pointed straight ahead and land directly under the hips
**********************************************************

I got no idea what my current posture is right now, but i guess i could take note of it. Hopefully it'll minimize my knee pain.

Haiz.. I dun wanna grow old and have knee problems le.

Another thing is.. my calf muscles are super super tight. Like crazy tight.. tight until can cramp. Yesterday, in the middle of the night my calf cramped up. It hurt like crazy!!!! But then again, this isn't the first time and i believe a lot of people have experienced it before.

How.. I don't have enough salt in my body is it? Is that the reason? Probably it really is my diet.. Lose too much potassium, sodium, calcium & magnesium. That's what i was told anyway. So gotta eat foods to replace these items. Although i'm not sure what..

lazy to go search... some other day...