Welcome to HydroStats

Overview

The aim of this interactive visualization is to help users explore the relationship between dehydration levels, body temperature, and running speed over time using real data. The visualization dynamically updates based on selected individuals and time intervals, showing changes in hydration levels and body temperature distribution across different body parts.

How to Use This Dashboard

1️⃣ Select a Subject

Use the slider to select an avatar of your liking. The demographic details of each subject are listed in the description box.

2️⃣ Adjust the Time Slider

• Move the time slider to see changes in hydration level and temperature over the 8 time intervals.
• The hydration level (body weight) and body temperature will update in real time.

3️⃣ Observe the Change in Water Levels

• The water bottle represents hydration levels.
• As dehydration progresses, the water level increases.

4️⃣ Body Temperature Changes Over Time

• The human figure represents body temperature distribution.
• Cooler temperatures appear in shades of blue, while warmer areas turn red.
• As dehydration progresses, body temperature increases dynamically.

5️⃣ Hover Over a Body Part

• Hover over the ear, chest, hands, or feet to see a tooltip graph of that body part’s temperature trend over time.
• The tooltip will display a line graph tracking temperature changes for that specific area.

Data Source

The data comes from the PhysioNet Quantitative Dehydration Estimation dataset, which records physiological changes during prolonged physical exertion. Each measurement was taken at an interval of 15 minutes and includes:

• Body weight measurements using a high-precision scale.
• Body temperature readings from eight key areas:
  • Ear
  • Left & Right Hand
  • Left & Right Legs
  • Left & Right Foot
  • Chest
• Dehydration tracking by loss in weight using Kern DE 150K2D [kg] (difference in body weight is assumed to be 70% of the total body water loss).

How Dehydration Levels Are Estimated

Dehydration is estimated using body weight loss as a proxy for total body water (TBW) loss:

                Needed Hydration = (Initial Body Weight - Current Body Weight) * 35.274 * 0.70
            

• More Exercise = More Weight loss = More Water Needed = Higher Water Level
• This method is widely used in medical research to track hydration status.

Why This Matters

• Dehydration affects both hydration levels and thermoregulation.
• Understanding these changes is crucial for athletes, healthcare professionals, and researchers.
• This visualization makes it easier to interpret how much water one should drink in real time.

Use this tool to interactively explore the connection between hydration and body temperature!