A lighter week ahead of the Ko Samui Half next week. The 5 x 1km session is a decent one and if done at 10k pace or heart rate it should help boost your lactate threshold. LT2 normally sits in the middle of our Zone 5, so no need to push too much beyond that in terms of HR.
Coach Simon🍊
If you have accurate heart rate data that is far and away the best guide for this run. Stay in Zone 2 if you can.
Try and hit a pace somewhere in Zone 5: 10k. If the route is not flat you can focus on heart rate instead and try to avoid drifting into Zone 6. This should feel comfortably hard.
Trust your PT.
Always explain to your PT what else you are doing this week so they can adjust the session accordingly.