Speediance Journal
Fitness
Training guides, product insights, and practical ideas for building a smarter strength routine at home.
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Latest Articles
Workout Calories vs Daily Calories: Reconcile the Same Time Range
Explains what workout, resting and total calorie figures usually mean, gives a same-time-range reconciliation workflow, and shows what wearable validation studies can and can't establish.
Optical Heart Rate and Calorie Estimates: Two Different Evidence Checks
A generic method for judging wrist-band heart rate and calorie estimates separately, with two evidence tables, a provenance audit, a session log and a list of evidence gaps.
Fitness Tracker GPS Distance: Separate Outdoor Routes from Indoor Estimates
Explains how to tell GPS route distance, stride-based estimates and treadmill display apart, with a repeatable same-route comparison protocol, illustrative example and acceptance checklist.
Wearable VO2 Max Estimates: How to Read Validation Evidence
Separates lab VO2 max from wearable estimates, summarizes three validation studies by device, activity, reference and population, and gives a log and checklist.
Fitness Tracker Accuracy: Define the Metric Before Comparing Devices
Reference methods for heart rate, steps, sleep and calories, how to read validation studies, an illustrative check log, and a no-overall-score checklist.
