Updated 1 week ago Science

What is low-intensity activity and why it matters

Low intensity activity duration measures how much time a user spends in low-intensity movement in a day. Learn how to interpret Sahha’s activity_low_intensity_duration and use it in your product.

Low intensity activity duration is the total time a user spends doing light movement during a day (e.g., casual walking, moving around the house, light chores). It’s measured in minutes. Higher values usually mean more “everyday movement,” which supports baseline fitness and helps reduce long sedentary stretches.

Key Takeaways

  • What it measures: time spent in light, low-intensity movement.
  • Why it matters: light activity improves movement consistency and helps break up sedentary time.
  • How to use it: power “move more often” programs, gentle daily goals, and accessible habit loops.
  • Best practice: interpret relative to baseline and pair with sedentary duration and steps for context.

Metric Spec

ItemValue
Sahha field nameactivity_low_intensity_duration
What it representsTotal daily time spent in low-intensity activity
UnitMinutes (minute)
Typical cadenceDaily (daily)
AggregationTotal (total)
Data requirementsSource-dependent; intensity classification depends on device detection
Best used forHabit loops, daily movement consistency, “reduce sitting” programs, wellbeing context

What Is “Low Intensity” Activity?

Low intensity activity is movement that generally feels easy and sustainable, such as:

  • slow to moderate walking
  • light household tasks
  • moving around at work or home
  • gentle stretching or mobility work (source-dependent)

Different platforms classify intensity differently (based on accelerometer signals, heart rate when available, or proprietary models). Treat this as an estimated duration, not a perfect physiological measure.

Why It Matters

Low intensity activity is behaviorally powerful because it:

  • is accessible to most users (lower barrier than workouts)
  • supports routine formation (frequent movement moments)
  • helps reduce long uninterrupted sedentary time

Product takeaway: low intensity duration is an excellent “foundation metric” for engagement because it rewards sustainable daily movement.

How Sahha Represents Low Intensity Activity Duration

Sahha provides this as an Activity biomarker:

  • Biomarker: activity_low_intensity_duration
  • Unit: minute
  • Periodicity: daily
  • Aggregation: total

Example biomarker object:

{
  "name": "activity_low_intensity_duration",
  "value": 94,
  "unit": "minute",
  "periodicity": "daily",
  "aggregation": "total"
}

How to Interpret It

  • Higher than baseline: more light movement and fewer “stuck sitting” periods.
  • Lower than baseline: the day likely had less movement outside of dedicated exercise (or more sitting).
  • High low-intensity + low medium/high: active day without structured exercise — still valuable.

Use baseline framing (“compared to your usual”) and avoid moral language.

How to Use It in Your Product

1) Gentle goals and streaks

Examples:

  • “Add 10 minutes of light movement today”
  • “Hit 60 minutes of light movement”
  • “Light movement 5 days this week”

2) Sedentary break programs

If low intensity duration is low and sedentary duration is high:

  • suggest “movement snacks” (2–5 minutes)
  • encourage short walks or standing breaks

3) Accessibility-friendly personalization

For users who can’t do high-intensity exercise, low intensity duration can be the main “success metric” to build positive momentum.

4) Driver explanations

  • “Your steps were okay, but your light movement time was lower — you had fewer movement moments during the day.”

Implementation Suggestions for your Products

  1. Trend it over 7–14 days

    • It’s noisy day-to-day; trends are more meaningful.

  2. Pair with sedentary duration

    • The combination is more actionable than either alone.

  3. Design for source variability

    • Intensity classification depends on the device; handle null gracefully.

  4. Use simple rules

    • If low intensity is down + sedentary is up → suggest “break up sitting” content
    • If low intensity rises week-over-week → celebrate consistency

FAQ

Is low intensity activity the same as steps?

Not exactly. Steps are a count; low intensity duration is time classified as light movement. They usually correlate but can differ depending on device detection.

Can cycling count as low intensity?

Sometimes, but many devices classify cycling differently (and steps may stay low). Treat intensity durations as device-estimated.

Why is my value missing (null)?

Some devices don’t provide intensity classification, or permissions/source coverage may be limited.

  • Sedentary duration: activity_sedentary_duration
  • Medium intensity duration: activity_medium_intensity_duration
  • High intensity duration: activity_high_intensity_duration
  • Active duration: active_duration
  • Active hours: active_hours
  • Steps: steps

Notes

This content is educational and designed for product personalization and engagement. It is not medical advice.

References

Sahha

General