22/11/2025
On my ‘Road to Hyrox’ my training plan will consist in large parts of ‘Zone 2’ training for extended time.
This morning it was 90 mins on the treadmill aiming for that zone ( between 131-142 bpm) but missed the mark so a good learning for next time.
I Kept pace between 5.8 and 6.4kmph and incline between 4 and 12 on the treadmill with 5kg weights each arm, alternating speeds, incline and weights to try and keep the heart rate solid.
Zone 2 training refers to aerobic exercise performed at a moderate intensity, typically 60-70% of your maximum heart rate (or where you can comfortably hold a conversation, often called the “talk test”). This is the effort level where your body primarily burns fat as fuel while producing minimal lactate buildup. It’s become hugely popular (thanks in part to experts like Dr. Iñigo San Millán, coach to Tour de France winners, and longevity advocates like Dr. Peter Attia) because it delivers outsized benefits for both performance and long-term health with relatively low stress on the body.
In short, Zone 2 isn’t flashy or exhausting, but it’s the highest-return investment in your training time. Most people undervalue it because it feels “too easy,” but the adaptations compound dramatically—many runners/cyclists report dropping minutes off race times just by prioritizing it. Aim for 2-5 sessions per week (30-90+ minutes each), keeping the bulk of your total training volume there for optimal results.
Zone 2 training is absolutely essential for Hyrox athletes — often more important than for pure runners or traditional CrossFit athletes.
My Road to Hyrox has 9 weeks and 5 days left… 🔥