Table 3 Design of experiment table showing the levels of input parameters.

From: Biomechanical investigation of tasks concerning manual materials handling using response surface methodology

Run no

(A) Footwear

(B) Carrying method

(C) Load handled

(D) Slope of surface

(E) Walking speed

0

Baseline run for normal gait (barefoot, without load, level ground, and self-selected speed)

1

2

2

2

2

2

2

2

2

2

2

2

3

3

3

3

3

1

4

3

1

3

1

1

5

3

3

1

3

3

6

2

2

2

2

3

7

2

2

2

1

2

8

2

2

2

3

2

9

1

3

1

3

1

10

1

3

3

3

3

11

1

3

3

1

1

12

3

1

3

3

3

13

1

2

2

2

2

14

3

2

2

2

2

15

2

2

1

2

2

16

3

3

1

1

1

17

1

1

1

1

1

18

2

3

2

2

2

19

1

1

3

3

1

20

2

2

2

2

1

21

2

2

3

2

2

22

3

1

1

1

3

23

3

3

3

1

3

24

1

1

1

3

3

25

3

1

1

3

1

26

1

3

1

1

3

27

2

1

2

2

2

28

1

1

3

1

3