Table 1.

Characteristics of the study variables

Variable	Experiment 1			Experiment 2
	Exercise w/5 min recovery	Control	p-value	Exercise w/10 min recovery	Exercise w/20 min recovery	Control	p-value
n	20	20		17	16	18
Age, mean years	20.8 (1.2)	21.2 (1.4)	0.35	22.3 (2.1)	21.0 (1.8)	21.9 (2.2)	0.15
% Female	55.0	40.0	0.34	47.1	73.7	84.2
% White	90.0	80.0	0.55	41.2	57.9	36.8
Body mass index, mean kg/m2	25.5 (4.1)	25.9 (5.4)	0.76	24.0 (3.3)	25.3 (3.6)	26.8 (6.5)	0.20
% Taking medication to regulate mood	5.0	5.0	1.00	5.9	5.3	5.3
Affect, mean (PANAS)
Positive	27.9 (6.2)	31.1 (6.5)	0.12	31.1 (6.9)	29.7 (7.0)	30.6 (7.6)	0.84
Negative	2.2 (3.1)	12.6 (4.0)	0.70	11.7 (2.5)	11.5 (1.7)	11.4 (2.3)	0.94
MVPA, mean	257.5 (166.9)	273.5 (126.2)	0.73	190.0 (113.6)	205.3 (160.0)	196.6 (147.0)	0.95
Resistance Exercise, %
Currently engaging in resistance exercise	85.0	75.0	0.43	64.7	52.6	68.4
Heart Rate, mean
Resting	75.0 (10.8)	70.2 (10.6)	0.16	77.0 (11.0)	74.1 (13.9)	72.1 (12.7)	0.52
Midpoint	144.5 (19.6)	76.7 (9.5)	< 0.001	129.3 (21.4)	127.5 (21.1)	73.7 (11.5)	< 0.001
Endpoint	155.5 (18.9)	73.7 (10.4)	< 0.001	135.7 (24.6)	137.8 (21.1)	68.6 (11.8)	< 0.001
Post	102.7 (12.7)	71.7 (8.4)	< 0.001	91.8 (14.5)	86.2 (14.5)	-	0.26
Rating of Perceived Exertion (RPE), mean
Resting	6.0 (0.2)	6.0 (0.0)	0.32	6.4 (1.2)	6.1 (0.3)	6.2 (1.1)	0.64
Midpoint	12.8 (1.6)	6.0 (0.0)	< 0.001	13.1 (1.9)	12.4 (1.6)	6.5 (1.6)	< 0.001
Endpoint	15.9 (1.5)	6.0 (0.0)	< 0.001	15.5 (2.2)	14.2 (2.3)	6.3 (1.1)	< 0.001
Post	7.9 (1.9)	6.0 (0.0)	< 0.001	7.6 (1.7)	6.2 (0.4)	6.0 (0.0)	0.008
Resistance training circuit
# of circuits completed (max = 5)	5.0 (0.0)	-	N/A	4.9 (.26)	5.0 (0.0)	-	0.15
Duration engaged in circuit (max = 15 min)	15.0 (0.0)	-	N/A	13.3 (4.7)	15.0 (0.0)	-	0.13

Values in parentheses are SD estimates.

MVPA: Moderate to vigorous physical activity.