With Spider arm

Without Spider arm

Student’s t-test (P < 0.05)

Gender

Male 3; Female 18

Male 1; Female 19

Age

69.4 (60 - 82)

66.8 (60 - 84)

n.s.

Height (cm)

154 (142 - 171)

150 (144 - 158)

n.s.

Weight (kg)

53.7 (40 - 75)

53.9 (42 - 79)

n.s.

BMI

22.3 (20.4 - 27.1)

24.4 (21.4 - 35.1)

n.s.