Author
Fitness
Rucking: What the Research Actually Says
Walking with a weighted pack raises energy cost roughly in proportion to the load, but the civilian evidence base is small and honest about its limits.
Articles by Santiago Rodriguez
Science
What Your Lactate Threshold Actually Means for Training
Lactate is fuel, not waste — and the point where it accumulates is one of the most trainable numbers in endurance sport.
Santiago Rodriguez
Fitness
Zone 2 Cardio: Why Slow Training Builds Your Aerobic Base
Low-intensity aerobic work builds mitochondria and durability, and endurance research explains why elites keep about 80 percent of their volume easy.
Santiago Rodriguez