For planks, I do 3x3x1minute with feet on a swiss ball. So front for 1 minute, rotate to one side for 1 mintue, then rotate to other side for 1 minute, for 3 rounds. Works a treat.
@JDB started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
For planks, I do 3x3x1minute with feet on a swiss ball. So front for 1 minute, rotate to one side for 1 mintue, then rotate to other side for 1 minute, for 3 rounds. Works a treat.