Topic Tag: z3 Search for: Viewing 3 topics - 1 through 3 (of 3 total) Topic Voices Posts Last Post Ditch the Z3 training during Base & MS period? Started by: joemccormick in: Training Theory/Methodology 3 4 1 year ago Seth Keena low, medium or high z3? Started by: Upwards in: Running 2 3 1 year, 1 month ago Upwards Adding High-Intensity Training (flat vs uphill) Started by: Upwards in: Running 2 6 1 year, 9 months ago Brian Bauer Viewing 3 topics - 1 through 3 (of 3 total)