© 2026 Hashnode
By Sharath Chandra Reddy Dumpali · M.S. Computer Science, University of New Haven The Problem Your smartphone knows when you're walking, running, or sitting — but how does it actually figure that out

Introduction Building a fitness application that recommends exercises sounds straightforward until you encounter the complexity of real-world constraints. A user wants to build upper body strength, but they're working out at home with only dumbbells ...

Introduction Building a fitness application that recommends exercises sounds straightforward until you encounter the complexity of real-world constraints. A user wants to build upper body strength, but they're working out at home with only dumbbells ...
