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Table 5 Anthropometric data in each category

From: Characteristics of Relative Age Effects and Anthropometric Data in Japanese Recreational and Elite Male Junior Baseball Players

      

Kruskal-Wallis test

Q1

Q2

Q3

Q4

(Differences among Q1–Q4)

Recreational elementary school

Height (cm)

141.9

142.1

140.7

138.6

p < 0.001

 

Weight (kg)

35.5

35.1

34.1

32.9

p < 0.01

Elite elementary school

Height (cm)

157.1***

156.9***

154.7***

153.6***

 
 

Weight (kg)

50.4***

48.4***

50.1***

40.6**

 

Recreational junior high school

Height (cm)

163.1

161.6

160.5

157.3

p < 0.001

 

Weight (kg)

53.8

52.4

51.4

48.1

p < 0.001

Elite junior high school

Height (cm)

170.1***

167.7*

164.5*

161.0*

p < 0.001

 

Weight (kg)

62.4***

60.4***

56.1**

52.9**

p < 0.001

Recreational high school

Height (cm)

172.3

171.3

172.1

170.9

 
 

Weight (kg)

68.2

68.4

67.9

65.9

p < 0.01

Elite high school

Height (cm)

173.0

173.8***

172.1

171.0

p < 0.001

 

Weight (kg)

71.2***

70.6**

69.5 *

69.9**

 

NPB

Height (cm)

180.4

180.4

179.9

179.7

p < 0.05

 

Weight (kg)

80.1

80.2

80.4

79.8

 

MLB

Height (cm)

189.9

190.0

189.5

190.5

 
 

Weight (kg)

94.3

94.6

95.0

95.1

 
  1. Data are expressed as the mean. Significant differences between recreational and elite players *p < 0.05, **p < 0.01, and ***p < 0.001