diff --git a/src/scripts/app/metadata.js b/src/scripts/app/metadata.js
index 5f60362..763eda7 100644
--- a/src/scripts/app/metadata.js
+++ b/src/scripts/app/metadata.js
@@ -2,7 +2,7 @@ import { ErrorOverlay } from '../components/overlay.js';
 import { FileHelper } from '../helpers/file-helper.js';
 import { StringHelper } from '../helpers/string-helper.js';
 import { TypeHelper } from '../helpers/type-helper.js';
-import { Stages } from '../data/stages.js';
+import { Stage } from '../models/stage.js';
 import { Configuration } from './configuration.js';
 
 const fs = nw.require('fs');
@@ -21,7 +21,7 @@ const readAppDataFile = new Promise((resolve, reject) => {
 });
 
 export class Metadata {
-  #stages = Object.values(Stages);
+  #stages = Object.values(Stage);
   #metadataRootFolder = '.metadata';
   #metadataFilename = 'data.json';
   #inputDataPath;
diff --git a/src/scripts/data/stages.js b/src/scripts/models/stage.js
similarity index 70%
rename from src/scripts/data/stages.js
rename to src/scripts/models/stage.js
index 8795795..8228dc8 100644
--- a/src/scripts/data/stages.js
+++ b/src/scripts/models/stage.js
@@ -1,4 +1,4 @@
-export const Stages = {
+export const Stage = {
   CONCENTRIC: 'concentric',
   ECCENTRIC: 'eccentric'
 };
diff --git a/src/scripts/participants-selection.js b/src/scripts/participants-selection.js
index c49672f..1179f12 100644
--- a/src/scripts/participants-selection.js
+++ b/src/scripts/participants-selection.js
@@ -12,7 +12,7 @@ import { Loader } from './components/loader.js';
 import { ErrorOverlay } from './components/overlay';
 import { getAllParticipants } from './utils/participants';
 import { Metadata } from './app/metadata.js';
-import { Stages } from './data/stages.js';
+import { Stage } from './models/stage.js';
 import { PathHelper } from './helpers/path-helper.js';
 import { StringHelper } from './helpers/string-helper';
 import { Switch } from './utils/switch';
@@ -108,7 +108,7 @@ const sessionStage = PathHelper.sanitizePath(
   sessionStorage.getItem('stage').toString().toLowerCase().trim()
 );
 
-let stage = sessionStage === undefined ? Stages.CONCENTRIC : sessionStage;
+let stage = sessionStage === undefined ? Stage.CONCENTRIC : sessionStage;
 
 let participantItems;
 let isAllSelected = false;
diff --git a/src/scripts/results.js b/src/scripts/results.js
index f1ebe31..1d1a73e 100644
--- a/src/scripts/results.js
+++ b/src/scripts/results.js
@@ -6,7 +6,7 @@ import { createPopper } from '@popperjs/core';
 import { Menu } from './components/menu.js';
 import { Router } from './routes/router.js';
 import { Metadata } from './app/metadata.js';
-import { Stages } from './data/stages.js';
+import { Stage } from './models/stage.js';
 import { PathHelper } from './helpers/path-helper';
 import { ErrorOverlay } from './components/overlay';
 import { FileHelper } from './helpers/file-helper';
@@ -190,7 +190,7 @@ const getRelevantRatioCoords = analysis => {
   let antagonist = appData.muscles.find(item => item.id === antagonistID).label;
   let agonist = appData.muscles.find(item => item.id === agonistID).label;
 
-  if (!(stage === Stages.CONCENTRIC)) {
+  if (!(stage === Stage.CONCENTRIC)) {
     antagonist = appData.muscles.find(item => item.id === agonistID).label;
     agonist = appData.muscles.find(item => item.id === antagonistID).label;
   }