Patient1

Patient 2

Patient 3

Patient 4

Day 1

2

4

1

3

Day2

1

−2

−1

−3

Day 3

1

2

2

−2

Day 4

1

0

2

1

Mean = M = 0.75

Mean

1.25

1

1

−0.25

SD = ∑ = 0.68

SD

0.50

2.58

1.41

2.75

RMS = σ = 2.03