Should I Get Slow or Fast?

Qs: I heard that when you are on a treadmill or bike, you should go slow for 12 seconds, and then fast for 8 seconds. Is this true?

*****

Without details on speed, load and number of sets, this program maybe describing an interval training that may aim to improve speed. So yes, it can be true. But it is true and beneficial for everyone? Maybe NOT!

Exercise programs should be designed according to an individual's or group's strength, limitations and goals. It should give specific details on Frequency (how often to exercise), Intensity (how hard to work), Time (how long to sustain the activity) and Type (what kind of activity to do).

Vaguely described programs such as this have a lot of rooms for misunderstanding and incorrect assumptions. What's important is to find out the exact details and goals.