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Table 1 The characteristics of daily schedules in elite Japanese athletes

From: A Subjective Assessment of the Prevalence and Factors Associated with Poor Sleep Quality Amongst Elite Japanese Athletes

  

Male

Female

  

N

(%)

N

(%)

Earliest training-practice start time

Before or at 7:00

68

(15.5)

60

(16.6)

 

7:01–8:00

16

(3.6)

26

(7.2)

 

8:01–9:00

121

(27.5)

97

(26.9)

 

9:01–10:00

152

(34.5)

120

(33.2)

 

After 10:00

83

(18.9)

58

(16.1)

Latest training-practice end time

Before or at 18:00

261

(59.5)

152

(42.2)

 

18:01–19:00

47

(10.7)

69

(19.2)

 

19:01–20:00

47

(10.7)

69

(19.2)

 

20:01–21:00

68

(15.5)

54

(15.0)

 

After 21:00

16

(3.6)

16

(4.4)

Hours of training-practice per week

20 h or less than 20 h

190

(43.6)

144

(40.2)

 

20.1–30 h

164

(37.6)

130

(36.3)

 

30.1–40 h

66

(15.1)

53

(14.8)

 

40.1–50 h

10

(2.3)

18

(5.0)

 

More than 50 h

6

(1.4)

13

(3.6)

Number of training-practice session per week

1–5 times per week

88

(19.6)

70

(19.0)

 

6–10 times per week

231

(51.4)

177

(48.1)

 

More than 10 times per week

130

(29.0)

121

(32.9)

Usual getting up time

Before or at 6:00

100

(22.3)

103

(28.0)

 

6:01–7:00

191

(42.5)

182

(49.5)

 

7:01–8:00

118

(26.3)

68

(18.5)

 

After 8:00

40

(8.9)

15

(4.1)

Usual time in bed

< 5 h

4

(0.9)

2

(0.5)

 

 5 and < 6 h

7

(1.6)

21

(5.7)

 

 6 and  7 h

142

(31.6)

132

(35.9)

 

> 7 and  8 h

186

(41.4)

155

(42.1)

 

> 8 h

110

(24.5)

58

(15.8)

Nocturnal sleep duration

< 5 h

3

(0.7)

7

(1.9)

 

 5 and < 6 h

19

(4.2)

36

(9.8)

 

 6 and  7 h

258

(57.5)

225

(61.1)

 

> 7 and  8 h

144

(32.1)

90

(24.5)

 

> 8 h

25

(5.6)

10

(2.7)

Frequency of naps

No habit

126

(28.1)

89

(24.2)

 

Less than once per week

59

(13.1)

69

(18.8)

 

1–2 times per week

99

(22.0)

67

(18.2)

 

3–5 times per week

118

(26.3)

87

(23.6)

 

Almost every day

47

(10.5)

56

(15.2)

Nap duration

 30 min

63

(14.0)

53

(14.4)

 

31–60 min

147

(32.7)

134

(36.4)

 

61–90 min

75

(16.7)

50

(13.6)

 

 90 min

11

(2.4)

13

(3.5)

 

Depends on case

27

(6.0)

29

(7.9)