Everyone seems loaded with technology these days so it would be interesting to find out and compare what different people are experiencing at each stage of the programme.
Been having some fun with my recently obtained (very) old school Polar heart rate watch. The fitness test based on my age (55) and weight 73kg suggests optimum fat burning training zone for me of min 137 max 157 bpm, during my last run W5R2 (8mins x 2) I was in this zone for 9 mins, my average heart rate 116, max 145 at end of second 8 mins. Recovery to 95 bpm after 3 mins walking. My resting/laying down heart rate 53 bpm. Last run was 5.5 min/km, 10.7 km/hr, 6.65 mph.