Influence of acute consumption of caffeine vs. placebo over Bia-derived measurements of body composition: a randomized, double-blind, crossover design

Williamson, Cassie M.; Nickerson, Brett S.; Bechke, Emily E.; McLester, Cherilyn N.; Kliszczewicz, Brian M.

doi:10.1186/s12970-018-0211-5

Journal of the International Society of Sports Nutrition

Table 1 ᅟ

From: Influence of acute consumption of caffeine vs. placebo over Bia-derived measurements of body composition: a randomized, double-blind, crossover design

Marker	CON	Cohen’s d	PLA	Cohen’s d	CAF	Cohen’s d
BF%
PRE	16.1 ± 6.4	---	16.0 ± 6.4	---	15.5 ± 6.2^bc	---
15-MIN	16.4 ± 6.3^a	0.05	16.5 ± 6.4^a	0.08	16.0 ± 6.2^abc	c0.08
30-MIN	16.5 ± 6.4^a	0.06	16.5 ± 6.3^a	0.08	16.4 ± 6.3^a	0.01
45-MIN	16.6 ± 6.4^a	0.08	16.7 ± 6.3^a	0.11	16.5 ± 6.3^a	0.16
60-MIN	16.8 ± 6.3^a	0.11	16.9 ± 6.4^a	0.14	16.5 ± 6.4^a	0.16
75-MIN	16.9 ± 6.2^a	0.13	17.0 ± 6.3^a	0.16	16.5 ± 6.3^a	0.16
90-MIN	16.8 ± 6.2^a	0.11	17.2 ± 6.5^a	0.19	16.7 ± 6.4^a	0.19
TBW
PRE	109.2 ± 11.9	---	109.0 ± 12.1	---	109.4 ± 11.5	---
15-MIN	108.9 ± 12.0	0.03	108.8 ± 12.3	0.02	109.0 ± 11.5	0.04
30-MIN	108.8 ± 11.9	0.03	108.7 ± 12.3	0.03	108.6 ± 11.7	0.07
45-MIN	108.6 ± 11.8	0.05	108.5 ± 12.2	0.04	108.4 ± 11.4	0.09
60-MIN	108.4 ± 11.9	0.07	108.3 ± 12.4	0.06	108.3 ± 11.3	0.10
75-MIN	108.3 ± 12.1	0.08	108.1 ± 12.3	0.07	108.3 ± 11.5	0.10
90-MIN	108.4 ± 12.0	0.07	107.9 ± 12.4	0.09	108.1 ± 11.6	0.11
ICW
PRE	69.1 ± 7.6	---	68.9 ± 7.7	---	69.3 ± 7.4	---
15-MIN	68.9 ± 7.6	0.03	68.7 ± 7.8	0.03	69.0 ± 7.4^a	0.04
30-MIN	68.7 ± 7.5^a	0.05	68.6 ± 7.8^a	0.04	68.6 ± 7.5^a	0.09
45-MIN	68.6 ± 7.5^a	0.07	68.5 ± 7.8^a	0.05	68.4 ± 7.3^a	0.12
60-MIN	68.5 ± 7.5^a	0.08	68.3 ± 7.8^a	0.08	68.4 ± 7.2^a	0.12
75-MIN	68.4 ± 7.7^a	0.09	68.2 ± 7.7^a	0.09	68.4 ± 7.4^a	0.12
90-MIN	68.4 ± 7.6^a	0.09	68.0 ± 7.8^a	0.12	68.2 ± 7.4^a	0.15
ECW
PRE	40.1 ± 4.4	---	40.1 ± 4.5	---	40.1 ± 4.2	---
15-MIN	40.1 ± 4.5	0.00	40.1 ± 4.5	0.00	40.1 ± 4.2	0.00
30-MIN	40.1 ± 4.5	0.00	40.1 ± 4.6	0.00	40.0 ± 4.3	0.00
45-MIN	40.0 ± 4.4	0.02	40.0 ± 4.5	0.02	39.9 ± 4.2	0.05
60-MIN	40.0 ± 4.4	0.02	39.9 ± 4.6	0.04	40.0 ± 4.2	0.02
75-MIN	39.9 ± 4.5	0.05	39.9 ± 4.6	0.04	40.0 ± 4.2	0.02
90-MIN	40.0 ± 4.5	0.02	39.9 ± 4.7	0.04	39.9 ± 4.2	0.05

Body composition markers are presented as the mean ± SD
^aRepresents significance of difference between time points and PRE value of the condition
^bRepresents significant difference between CON condition
^cRepresents significant difference between PLA condition. Cohen’s d values are relative to the corresponding time point when compared to PRE

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ISSN: 1550-2783

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