We sat down with HYROX master coach Tiago Lousa to break down the real method to race-day speed, the mistakes holding athletes back and the fixes that make you faster without blowing up. Whether ...

Polarized training is based on a clear 80/20 distribution: 80% of your training at low intensity (max HR 65–75%) and 20% intense (at or above the anaerobic threshold), while the middle zone is largely ...

If you’ve read even a small amount of running research, you’ll likely have come across the term ‘lactate threshold’. But what does it actually mean? In essence, your lactate threshold is the point at ...

After the USA Track and Field Championships in August, Emily Infeld – who won the national title in the women’s 10,000 meters – told reporters she incorporated double thresholds into her training once ...

When runners talk physiology, two terms dominate the conversation: VO2 max and lactate threshold. The two metrics are related but not the same, and they shape performance in different ways. Naturally, ...

‘Comfortably hard’ sounds a bit like a contradiction in terms, yet that’s the feeling you’re looking for when you start thinking about thresholds. It’s helpful for runners to know where their lactate ...