Higher doses of a green tea-based supplement increase post-exercise blood flow following an acute resistance exercise bout in recreationally resistance-trained college-aged men

Table 2 Heart rate and blood pressure responses

Time point	PRE	PRE2	POST	15POST	45POST	Statistics
Low GBS dose (300 mg) (n = 9)
Heart rate (bpm)		#			#	Supp p = 0.702
GBS	62 ± 12	59 ± 10	60 ± 10	62 ± 12	60 ± 10	Timep = 0.005
Placebo	61 ± 13	57 ± 12	60 ± 11	58 ± 11	58 ± 11	SxT p = 0.669
SBP (mmHg)			*			Supp p = 0.924
GBS	115 ± 8	115 ± 7	119 ± 9	114 ± 9	114 ± 8	Timep = 0.001
Placebo	115 ± 8	114 ± 7	120 ± 7	113 ± 5	116 ± 7	SxT p = 0.867
DBP (mmHg)						Supp p = 0.516
GBS	64 ± 7	63 ± 7	63 ± 7	63 ± 6	62 ± 6	Time p = 0.939
Placebo	63 ± 6	65 ± 6	65 ± 5	64 ± 6	66 ± 6	SxT p = 0.475
High GBS dose (600 mg) (n = 8)
Heart rate (bpm)					#	Supp p = 0.825
GBS	56 ± 8	55 ± 10	56 ± 11	55 ± 9	54 ± 7	Timep = 0.027
Placebo	56 ± 8	54 ± 9	56 ± 8	56 ± 8	54 ± 8	SxT p = 0.473
SBP (mmHg)			*			Supp p = 0.341
GBS	112 ± 6	113 ± 6	120 ± 7	113 ± 7	114 ± 7	Timep < 0.001
Placebo	116 ± 4	114 ± 4	120 ± 4	116 ± 4	115 ± 3	SxT p = 0.239
DBP (mmHg)						Supp p = 0.857
GBS	64 ± 5	66 ± 5	67 ± 5	67 ± 6	68 ± 6	Time p = 0.454
Placebo	67 ± 7	66 ± 7	66 ± 5	67 ± 4	66 ± 6	SxT p = 0.397

Legend: All hemodynamic data are presented as mean ± SD. Abbreviations: bpm Beats per minute, mmHg Millimeters of mercury, SBP Systolic blood pressure, DBP Diastolic blood pressure, PRE Pre-supplement consumption; PRE2 45-min post-supplement consumption, POST within 3 min of arm curl exercise (4 sets of 10 repetitions using 11 kg), 15POST 15 min post-exercise, 45POST 45 min post-exercise, Supp main effect of supplement (GBS versus placebo), Time main effect of time, SxT supplement by time interaction. Symbols: *, time effect post hoc indicated greater than PRE (p < 0.05); #, time effect post hoc indicated lower than PRE (p < 0.05)

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