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International Journal of Interdisciplinary Research

Table 2 Skin blood flow by body region and body posture/motions for the knee guard condition (KG) and the control condition (unit: %)

From: Effects of wearing knee-guards on skin pressure and skin blood flow during dynamic motions

 

Knee guard condition

Mean

Control condition

Mean

Front thigh

Middle knee

Side knee

Front calf

Front thigh

Middle knee

Side knee

Front calf

1. Standing

0

0

0

0

0

0

0

0

0

0

2. Sitting

5 ± 0a

− 37 ± 1a

7 ± 0a

− 6 ± 0a

− 8 ± 1a

− 1 ± 0a

− 53 ± 2a

− 2 ± 0a

− 1 ± 0a

− 14 ± 2a

4. Switching directions

72 ± 1d

158 ± 2c

157 ± 2d

106 ± 2c

123 ± 3c

134 ± 1c

161 ± 2bc

109 ± 1c

140 ± 2c

136 ± 2c

6. Long kicking

68 ± 2c

158 ± 3c

146 ± 3c

114 ± 2d

121 ± 4c

182 ± 19d

166 ± 4c

122 ± 2d

148 ± 2d

155 ± 3d

8. Instep kicking

54 ± 1b

147 ± 3b

113 ± 2b

80 ± 2b

98 ± 4b

114 ± 1b

157 ± 3b

103 ± 3b

101 ± 1b

119 ± 3b

10. Jumping

114 ± 3e

207 ± 6d

198 ± 5e

152 ± 5e

168 ± 4d

248 ± 5e

204 ± 4d

181 ± 3e

221 ± 3e

213 ± 3e

Total

55 ± 3

105 ± 7

110 ± 5

76 ± 4

87 ± 3

113 ± 6

103 ± 8

86 ± 5

105 ± 6

102 ± 3

P-value

< 0.001

< 0.001

< 0.001

< 0.001

< 0.001

< 0.001

< 0.001

< 0.001

< 0.001

< 0.001

  1. The upper cases of a,b,c,d,e represent statistically identified groups classified by Duncan test among the motions. Data are expressed as mean ± SE