Speediance Journal
Fitness
Training guides, product insights, and practical ideas for building a smarter strength routine at home.
Featured
Start Here
Latest Articles
Wrist Heart Rate Monitor Accuracy: Compare Models on the Same Task
A step-by-step method for comparing wrist heart rate evidence across models: record the setup, match activity and reference, check what validation covers, and keep a comparison-limits table.
How Step Data Moves from Phone and Watch to a Health App
A practical guide to tracing which phone, watch, or app records feed a health app's daily step total, with a path map, same-interval example, and duplicate/gap checklist.
Active vs Total Calories: Check Energy Definitions Before Comparing
Separates active, resting, workout and total energy labels, explains what validation studies covered, and gives a profile, fit and consistency checklist.
Heart-Rate Sensor Placement: Read the Version and Wear-Location Evidence
How hardware generation, wear location, activity and reference device shape what heart-rate validation studies support, with a worked example, acceptance criteria and a checklist of unverified scenarios.
How to Assess Wearable Calorie Accuracy Across Activities
A guide to reading calorie-accuracy evidence: separate activity, resting and total energy, check reference methods and error metrics, and record what applies to you.
