Archive for December, 2011

Tifosi Slip Sunglasses

Tifosi Slip sunglasses come with three interchangeable lenses, so you can change them based on light and weather conditions. The large shield lens are ventilated for increased airflow and anti-fog functionality. They also feature 100% UVA & UVB protection, as well as Glare Guard glare reducer to decrease eye fatigue. The hydrophilic rubber nose pieces and adjustable temples provide a secure, comfortable fit.

Bolle Bolle Vigilante Sunglasses

The frames of Bolle Bolle’s Vigilante running sunglasses are made of nylon, so they’re lightweight and flexible. They also include rubber nose pads and temple tips to provide ultimate comfort and security while you’re running. The sunglasses’ polycarbonate lenses are also super lightweight and exceed ANSI requirements for UV protection. The scientifically engineered coating on the backside of the lens eliminates backside glare to reduce eye strain.

Article Courtesy of Sports Sunglasses

There are actually a number of ways in which your Garmin device will calculate how many calories you’ve burned.  And not unexpectedly, the accuracy level varies based on which method you use.  Some methods offer a rudimentary guesstimate, while others are based on scientific testing that’s then imported into your device to get far more accurate results.

So, let’s walk through each of the five major methods, starting with the most accurate, and working our way down the list to the less accurate.

1) New Leaf VO2 Test Profile

2) Firstbeat Algorithm

3) FR60 Heart Rate Algorithm

4) Speed/Distance Algorithm

5) Power Meter to get Kilojoules

Article courtesy of Sports Watches