karimirak Profile Topics Started Replies Created Engagements Favorites Search topics: Topics Engaged In Viewing 4 topics - 1 through 4 (of 4 total) Topic Voices Posts Last Post High HR running downhill, HR drift on long workouts Started by: karimirak in: Training Theory/Methodology 1 1 3 weeks, 2 days ago karimirak Zone 3 Questions Started by: karimirak in: Training Theory/Methodology 1 1 3 weeks, 2 days ago karimirak Zone 3 necessary for me? Started by: karimirak in: Training Theory/Methodology 2 3 9 months, 3 weeks ago Scott Johnston Detriment of mixed workouts (ME, Z3, etc. in longer Z1 workout) Started by: karimirak in: Training Theory/Methodology 2 3 1 year, 3 months ago karimirak Viewing 4 topics - 1 through 4 (of 4 total)