Object

Walking speed

n

Mean (dBA)

Minimum (dBA)

Maximum (dBA)

p

Wagon

Stretcher

Wheelchair

Bedside table

Overhead table

Bed

IV pole

Slow

Normal

Fast

Slow

Normal

Fast

Slow

Normal

Fast

Slow

Normal

Fast

Slow

Normal

Fast

Slow

Normal

Fast

Slow

Normal

Fast

155

114

65

142

85

69

147

102

67

154

98

45

122

86

56

86

48

39

123

74

49

43.5

44.6

50.0

43.8

52.4

57.5

37.4

39.0

41.9

52.4

57.8

68.5

53.7

58.9

64.1

43.0

48.7

53.7

46.4

47.5

51.3

28.3

37.2

38.2

36.4

38.0

40.3

35.9

36.0

37.5

37.9

40.7

40.3

40.5

42.1

42.5

41.1

42.7

46.5

37.0

38.1

36.2

58.2

51.8

66.9

58.0

72.0

78.4

39.7

43.5

48.1

63.5

68.6

79.8

63.4

67.4

74.3

44.5

51.6

63.5

54.6

57.5

64.5

Slow < Normal*, Normal < Fast*,

Slow < Fast*

Slow < Normal*, Normal < Fast*,

Slow < Fast*

Slow < Normal*, Normal < Fast*,

Slow < Fast*

Slow < Normal*, Normal < Fast*,

Slow < Fast*

Slow < Normal*, Normal < Fast*,

Slow < Fast*

Slow < Normal*, Normal < Fast*,

Slow < Fast*

Slow < Normal*,

Slow < Fast*