To some extent whether it will be effective depends on your goal. Are you trying to develop endurance or speed?

There's an article at sportsci.org on the "Effects of High Intensisty Intermittent Training on Maximum Oxygen Uptake and Endurance Performance" which compares several different interval training techniques if Endurance is your goal. 

Is my interval training routine effective for mountain bike training?
i am trying to remove the validation.js script from my home page as it is not need here. I am using this code in my page.xml 

    &lt;cms_index_index&gt;
    &lt;reference name="head"&gt;
                &lt;action method="removeItem"&gt;&lt;script&gt;prototype/validation.js&lt;/script&gt;&lt;/action&gt;
    &lt;/reference&gt;
&lt;/cms_index_index&gt;


But the script is still being loaded. What am i doing wrong? 

Thanks 
