Watch your watts


This week I got up for a 6:15 am spin bike class at Terwillegar Centre.    For those who have done spin biking on bikes with a dashboard, they show the rpm and you change gears.  Higher the rpm, higher the gear, higher the WATTS.

The leader of the class, at the point where I was fatiqued suggested we focus and watch our WATTS.

So I needed to get the definition or an example down in my blog:

A person having a mass of 100 kilograms who climbs a 3 meter high ladder in 5 seconds is doing work at a rate of about 600 watts. Mass times acceleration due to gravity times height divided by the time it takes to lift the object to the given height gives the rate of doing work or power. A laborer over the course of an 8-hour day can sustain an average output of about 75 watts; higher power levels can be achieved for short intervals and by athletes.[1]

Advertisements

One response to this post.

  1. Posted by David W Harper on July 11, 2011 at 4:57 pm

    In todays spin class, being in about 12th gear it was suggested to power thru and target 250 watts on the spin bike meter. Fun !!!!

    Reply

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

%d bloggers like this: