One Rep Max

A sample application that given a set of data for historical workouts, will calculate the theoretical one-rep max using the Brzycki formula.

Overview

On the main screen, users can see their list of workouts and what the record calculated one-rep max is for each one. Clicking on a list entry will take the users to a graph that shows them their calculated one-rep max over time. The graph will show only the record one-rep max for each day.

Architecture

The app is written in Kotlin and uses Jetpack Compose for creating views. It follows the MVVM pattern for separation of concerns. Different functionality is split into separate modules.

• app: View and view models
• core: Houses all functionality outside of Android-dependent code
• core:data: Includes repository for fetching data and model classes to represent that data
• core:localdata: Includes code for reading the history workout data from the given txt file
• core:testing: Includes common code that can be used for UI and unit tests
• core:util: Includes utility functions for date parsing/formatting and for calculating one-rep max

Running the app

The app should run as-is after cloning the repository. If you wish to test a new set of data, replace the contents of workoutData.txt with new data.

The app is built under the assumption that any data in that file will follow the same pattern that already exists:

Date of workout (MMM dd yyyy),Exercise Name,Reps,Weight