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Table 4 Trial order and duration of data collection protocol

From: The effectiveness of simple heuristic features in sensor orientation and placement problems in human activity recognition using a single smartphone accelerometer

Trial order

Activity

Duration (min)

1

Lying down

5

2

Sitting

5

3

Walking

10

4

Lying down

5

5

Running at 3 METs

10

6

Lying down

5

7

Running at 5 METs

10

8

Sitting

5

9

Running at 7 METs

10