Road running intervals 20:55  5.0 km (4:11 / km)
max:181 shoes: adidas Supernova boost (i)
3 sets of 3x500m off 60s and 2:30 between sets, along the embankment
Was aiming to get faster throughout each set, something like 1:45/40/35. Had to work hard to stay warm anyway!
Still surprised by the low hr. OK they were short intervals but I was really going for it and 181 is some way below my highest over the last year or so. Wonder if it's the cold weather? I really don't think I was missing out on 5-10 bpm worth of effort on these reps.
Times were: 1:45, 41, 32, 48, 37, 36, 41, 39, 37