Table 1. Magnitude (kg), percentage of body mass (%) and time-scale of body weight
reduction in Senior England international amateur boxers (n = 82)
from 13 weight categories. Data are means (±SD).

 

 

Days prior to Official weigh-in

Weight category
 (kg)

Number of
boxers

21

7

3

1

48

6

3.1 (.7)
(6.5%)

2.4 (1.0)
(5.0%)

1.5 (.7)
(3.1%)

.9 (.5)
(1.9%)

51

5

3.8 (.9)
(7.5%)

2.8 (.5)
(5.5%)

2.2 (.2)
(4.3%)

1.2 (.2)
(2.4%)

54

8

3.6 (.8)
(6.7%)

2.6 (.8)
(5.1%)

1.5 (.6)
(2.9%)

.9 (.3)
(1.7%)

57

7

3.4 (.5)
(6.0%)

2.5 (.5)
(4.4%)

1.9 (.5)
(3.3%)

1.0 (.3)
(1.8%)

60

5

3.8 (1.1)
(6.3%)

2.8 (.9)
(4.7%)

2.0 (.7)
(3.4%)

1.2 (.7)
(2.0%)

*63.5

9

4.8 (.6)
(7.6%)

3.6 (.6)
(5.7%)

2.6 (.6)
(4.1%)

1.4 (.3)
(2.2%)

¨64

4

4.0 (.6)
(6.3%)

3.3 (.6)
(5.2%)

2.4 (.4)
(3.8%)

1.4 (.4)
(2.2%)

*67

6

4.5 (.7)
(6.7%)

3.7 (.7)
(5.5%)

2.6 (.5)
(3.9%)

1.8 (.5)
(2.7%)

¨69

5

4.3 (.7)
(6.2%)

3.4 (.5)
(4.9%)

2.4 (.7)
(3.5%)

1.6 (.5)
(2.3%)

*71

7

4.4 (.5)
(6.2%)

3.6 (.5)
(5.1%)

2.7 (.3)
(3.8%)

1.7 (.5)
(2.4%)

75

9

6.2 (1.5)
(8.3%)

4.1 (.9)
(5.5%)

3.1 (.6)
(4.1%)

1.8 (.3)
(2.4%)

81

5

6.6 (.9)
(8.1%)

4.2 (.7)
(5.2%)

2.9 (.2)
(3.6%)

1.9 (.2)
(2.4%)

91

6

7.4 (1.2)
(8.1%)

4.7 (1.2)
(5.2%)

3.2 (1.0)
(3.5%)

1.9 (.7)
(2.1%)

 average

 7.0 (±.8%)

 5.2 (±.4%)

 3.6 (±.4%)

 2.2 (±.3%)
[NB: (a) In 2003 rule changes to the weight classification system for Senior amateur boxers resulted in the 63.5 kg, 67 kg and 71 kg categories (*) being replaced by a 64 kg and 69 kg category (¨). (b) Super-heavyweight (91+ kg category) not included as weight manipulation not practised].