When you walk gently you use what is known “slow-twitch” fibres. These circulate the oxygen with every breath and burn off the blood glucose and the glycogen stored in your liver.
When you run fast, your muscles fire up and the glycogen burns so quickly that you’ll feel like you have jelly-legs as you have burned all the sugar out of them.
There’s a balance between exercising enough but not too much.
The best way to achieve this is to alternate between full-body toning and strength workouts for 15-30 minutes and cardio interval workouts from 10-30 minutes for six days a week.
We've a great stationary bike workout that covers this nicely – and burns sugar so you get all the benefits.
six minutes - perfect. Especially on a stationary bike for this typical bank holiday weather!
Bike workouts are definitely my favourite so exercise. I love going all out, and using inclines, all really great for cardio.
I never knew the jelly-legs I sometimes get is down to the sugar. The workout sounds simple and easy to remember, see if I can remember at the gym later.