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The Ergonomics module is the foundational health module in ErgoKawsay. It walks teachers through the core principles of occupational ergonomics — what it means, why it matters for classroom work, which body zones are most at risk, and how to set up a safe workstation. Content is delivered as an interactive story deck of six swipeable cards, each combining an illustration with focused text. The module is available in both Spanish and Kichwa and works entirely offline.

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What is Ergonomics?

Ergonomics is the science that adapts work to people — not people to work — with the goal of protecting health and well-being. For teachers, this is especially important because the daily routine combines several high-risk physical activities:
  • Blackboard writing — repeatedly raising both arms causes progressive fatigue in the shoulders and neck.
  • Keyboard and mouse use — rapid typing cycles during lesson planning and grading overload the hands and wrists.
  • Prolonged standing — staying on your feet for long periods stresses the lower back and legs.
  • Touchscreen use — constant interaction with phones or tablets causes cumulative fatigue in the fingers and hands.
Understanding ergonomic principles is the first step toward preventing musculoskeletal disorders before they become chronic.

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Content Sections

The six story cards cover the following topics in order:

1 · What is Ergonomics?

Defines ergonomics as the science that adapts work to protect people’s health and well-being. Introduces the concept in the context of teaching.

2 · Repetitive Movements

Explains how repeated work actions — writing, typing, grading — accumulate over time and can cause pain and musculoskeletal injuries if unaddressed.

3 · Physical Causes

A 2×2 grid card covering the four main physical risk factors: Blackboard (elevated arms → shoulder and neck fatigue), Keyboard & Mouse (rapid cycles → hand and wrist overload), Static Posture (prolonged standing → lumbar strain), and Touchscreens (constant device use → finger and hand fatigue).

4 · Most Affected Body Zones

Displays the six body zones most affected by teaching-related ergonomic risks as interactive zone chips: Neck, Shoulders, Lower Back, Wrists, Upper Back, and Legs.

5 · Workstation Setup

A 2×2 grid card on corrective workstation configuration: Chair (adjustable height, lumbar support, feet flat, knees at 90°), Desk (forearms resting, shoulders relaxed, elbows at 90°), Laptop (screen at eye level, external keyboard and mouse), and Lighting (avoid screen glare, light source from the side).

6 · WHO Key Statistic

Closes the deck with a landmark World Health Organization figure on the global burden of musculoskeletal conditions — presented as a “key fact” card to reinforce the importance of prevention.

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WHO Statistic

According to the WHO, approximately 1.71 billion people suffer from musculoskeletal conditions worldwide. Low back pain is the leading cause of work absenteeism in 160 countries (WHO, 2022).

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Posture Illustrations

Each story card is paired with a custom posture illustration. The ErgonomicsScreen maps each slide index to a specific asset via AppAssets constants. The full set of illustrations used in the module is:
SlideAsset pathDescription
0assets/Extra/ergonomia/ergonomia_docente.pngGeneral teacher ergonomics overview
1assets/Extra/posturas/usando_tablet.pngTeacher using a touchscreen tablet
2assets/Extra/posturas/en_la_pizarra.pngTeacher writing at the blackboard
3assets/Extra/posturas/zonas_afectadas.pngBody diagram of most affected zones
4assets/Extra/posturas/usando_computadora_completo.pngTeacher at a desktop computer
5assets/Extra/posturas/de_pie.pngStanding posture (side view)
All images are bundled with the app and load instantly with no internet connection required.

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Screen Navigation

The Ergonomics module is registered as the /ergonomics route and is accessible from the HomeScreen module grid. It is rendered by ErgonomicsScreen, which loads section data from LocalDataRepository.instance.ergonomicsSections(isKichwa) and builds the StoryDeck widget with six StorySlide entries. The final slide includes a “Pon a prueba lo que aprendiste” action button that launches the built-in QuizScreen (ergonomicsQuiz). 
HomeScreen → /ergonomics → ErgonomicsScreen
                                └── StoryDeck (6 slides)
                                        └── Last slide action → QuizScreen (ergonomicsQuiz)

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