Blog / Category
Health & Pediatrics
Pediatric growth charts, LMS Box-Cox methodology, CDC and WHO standards, and integration patterns for digital health applications covering children and adolescents.
19 articles · ← All categories
How to Build a HIPAA-Compliant Patient Body Assessment Feature
Add body dimension predictions to a healthcare application without HIPAA liability — stateless API architecture, no PHI transmission, and no BAA required.
Estimating Body Fat Percentage from Circumference Measurements
Validated regression formulas for body fat estimation from circumference measurements — how they work, their limits, and a Python implementation.
How to Build a HIPAA-Ready Fitness Onboarding Flow Without Storing a Photo
HIPAA-ready body measurement collection for fitness apps — stateless API design, onboarding patterns, and what 'HIPAA-ready by architecture' means in practice.
Integrating Wearable Health Data with Body Measurement APIs
Integrating Apple Health, Google Fit, Garmin, and Oura data with body dimension prediction APIs — normalization, data freshness, and architecture patterns.
Body Digital Twins: Managing Measurement Profiles Over Time
Managing a user's body digital twin lifecycle — when to update measurement profiles, how body dimensions change over time, and handling profile staleness.
Pediatric Body Measurements in Digital Health: What CDC/WHO Standards Mean for Developers
Pediatric body prediction for digital health apps — LMS Box-Cox growth charts, CDC vs. WHO standards, and integration patterns for children's health apps.
Waist Circumference Standards: Why Measurement Landmark Matters for API Consistency
Waist circumference measurement standards — why landmark choice matters, what WHO, NIH, and ISO say, and how to handle it correctly as an API input or output.
Predicting Adult Height: Methods for Pediatric Health Applications
Bayley-Pinneau, Khamis-Roche, mid-parental height — three adult height prediction methods explained for developers building pediatric health applications.
Photo-Based vs. Statistical Body Measurement: Which Approach Is Right for Your App?
Photo-based body measurement vs. statistical prediction from height and weight — accuracy, privacy, user friction, and which use cases each approach handles.
The Measurement Switch at Age 2: Handling the Length-to-Height Transition in Pediatric Apps
The recumbent length to standing height transition at age 2 introduces a 0.7-1.0 cm discrepancy that WHO/CDC growth chart software must handle. Here's how.
Stateless vs. Stateful Biometric Architecture: The Decision That Defines Your Stack
Stateless vs. stateful biometric architecture — compliance, security, and product implications that compound over time, and how to decide before you build.
How the Human Body Changes With Age: An Anthropometric Timeline
How body dimensions change from infancy through aging — documented anthropometric patterns over a lifetime and their implications for product design.
How to Add Body Proportions to a Fitness App Onboarding Flow
Enrich fitness app onboarding with body proportions — stride length, reach, shoulder width — from height and weight alone, with no extra questions asked.
What Is BMI Actually Measuring — and Where It Falls Short
BMI is widely used in medicine — and widely misunderstood. What it actually measures, where it fails, and what the scientific literature says about its limits.
Building an Ergonomic Workstation Calculator from Body Measurement Data
Ergonomic workstation recommendations from body dimensions — desk height, monitor, chair settings, ISO standards, and a complete Python implementation.
LMS Box-Cox Growth Charts Explained: The Math Behind Pediatric Anthropometry
The LMS Box-Cox method explained — how it turns skewed pediatric growth data into z-scores and percentiles behind CDC and WHO growth charts.
Implementing Body Measurement Percentiles: Where Does a User Rank in Their Population?
Computing population percentiles for body dimensions — the normal distribution assumption, scipy.stats implementation, and caveats about population specificity.
How to Build a Children's Sizing Feature Without Storing Children's Data
Children's size calculator using the pediatric API — age, height, weight to clothing size — with stateless architecture for GDPR and COPPA compliance.
Building a Children's Size Calculator: Age, Height, and Growth Accommodation
Age-based children's sizing — the age_category API parameter, growth accommodation strategies, and a complete implementation from infant through pre-teen.