Q: One of the last great mysteries in running is dealing with Karvonen versus straight-line method of calculating your Heart Rate ranges. I have been using the Karvonen method which makes sense ...

For interval work, I exercise at a pace to get my heart rate up to a level I can tolerate and complete the designated task (run or row ‘x’ meters) and slow the pace until my next interval ...

The RX: (1) Buy a heart-rate monitor, ... Run speed intervals. For 50 minutes twice a week, alternate running for one minute below your AT with three minutes at or above it.

The Intervals (The Main Course): Here, you alternate the fast part ("work") with the recovery part. Work Part: Run at a pace significantly faster than your usual race pace.

Methods Consecutive, consenting healthy adult recreational sportspersons aged 20.56±2.49 years (n=30), volunteered to ‘baseline recording’ of resting heart rate (HR), blood pressure (BP), respiratory ...

Adding intervals is a great way to mix up and spice up your runs. Oh, and it's way more effective for your health and fitness. Here are some fun ways to give intervals a try!