Category: Training

How to Estimate Your One Rep Max Without Testing It

Testing a true one rep max is risky, fatiguing, and costs you a week of training. Estimating it from a set you were going to do anyway costs nothing — provided you understand where the estimate goes wrong.

September 14, 2026 · 5 min read

Training

Why Your Fitness Tracker Overestimates Calories Burned

Your watch says you burned 620 calories. Stanford researchers who validated seven wrist-worn devices found that none of them estimated energy expenditure within an acceptable error range — even while measuring heart rate almost perfectly. Here is what is going wrong, and what to do about it.

September 14, 2026 · 6 min read

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