Went out before lunch for our usual shorter West End route except via Nansen Street to avoid some icy cobbles. 3.34 miles in 28:16, average pace 8:28/mile, HR 139. Chest strap might have been loose again as the HR readings look a bit high, or it might have had something to do with the cold.
Pace splits (ave. HR): 8:56 (147), 8:18 (134), 8:07 (140), 8:40 (126)
HR zones: 9.3%, 45.1%, 38.4%, 7.2%, 0%
In the afternoon I tried out the cross-country spikes on a run up Baird's Brae and along the canal to Lambhill Bridge. The last quarter-mile or so up to the bridge was uneven and tough on the ankles, but otherwise it went fine, and I could see on the way back from my earlier footprints that my stride had lengthened as I had got used to the conditions. 6.56 miles in 43:47, average pace 6:41/mile, HR 163. The sub-zero temperatures might account for the high HR readings as it didn't feel like I was working particularly hard.
Pace splits (ave. HR): 7:03 (160), 6:26 (164), 6:37 (163), 6:33 (165), 6:35 (165), 6:41 (164), 6:53 (160)
HR zones: 0.4%, 0.5%, 12.3%, 86.8%, 0%
Weekly total: 20 miles
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