TABLE 3.

Number of participants in each USG classification in summer (n = 12) and winter (start and end of swing n = 14, middle of swing n = 12) pre- and post-shift.

	< 1.010 “well hydrated”		1.010–1.020 “minimal dehydration”		1.021–1.030 “significant dehydration”		> 1.030 “serious dehydration”
	Pre-shift	Post-shift	Pre-shift	Post-shift	Pre-shift	Post-shift	Pre-shift	Post-shift
Summer^
Start of swing	1	2	8	3	3	7
Middle of swing		2	7	2	5	8
End of swing		1	9	6	3	5
Winter
Start of swing		2	5	3	8	9	1
Middle of swing			8	5	4	7
End of swing		1	8	5	5	8	1

^, denotes a significant main effect for season (p < 0.05).