Table 4.

Ventilatory responses and rating of perceived exertion during exercise.

	Non-burn-injured controls (n=11)		Adults with well-healed burn injuries (n=27)		p values
	Pre-training	Post-training	Pre-training	Post-training	Group	Time	Interaction
50 watts
Respiratory rate, breaths/min	16 ± 4	18 ± 5	20 ± 5	20 ± 5	0.07	0.16	0.22
Tidal volume, L	1.6 ± 0.7	1.4 ± 0.5	1.3 ± 0.4	1.2 ± 0.3	0.08	0.002	0.09
Heart rate, beats/min	104 ± 16	98 ± 18	101 ± 20	95 ± 18	0.60	0.001	0.89
Oxygen pulse, mL/beat	9.5 ± 1.7	9.9 ± 2.2	9.5 ± 2.5	9.6 ± 2.1	0.84	0.21	0.48
Respiratory exchange ratio	0.87 ± 0.09	0.81 ± 0.09	0.88 ± 0.09	0.85 ± 0.08	0.36	<0.001	0.21
Rating of perceived exertion	10 ± 2	9 ± 1	11 ± 2	9 ± 2	0.08	0.004	0.80
75 watts
Respiratory rate, breaths/min	19 ± 4	19 ± 5	23 ± 7	22 ± 5	0.03	0.57	0.54
Tidal volume, L	1.8 ± 0.4	1.6 ± 0.5	1.5 ± 0.4	1.4 ± 0.3	0.09	0.002	0.47
Respiratory exchange ratio	0.94 ± 0.08	0.87 ± 0.04	0.95 ± 0.08	0.91 ± 0.07	0.23	<0.001	0.18
Oxygen pulse, mL/beat	10.5 ± 1.6	10.9 ± 2.7	10.5 ± 3.3	10.6 ± 2.2	0.86	0.39	0.51
Heart rate, beats/min	116 ± 18	107 ± 21	115 ± 27	106 ± 20	0.89	<0.001	0.85
Rating of perceived exertion	11 ± 2	10 ± 1	12 ± 2	11 ± 2	0.09	0.003	0.52
Maximal exercise
Respiratory rate, breaths/min	49 ± 8	50 ± 8	47 ± 9	48 ± 10	0.40	0.49	0.92
Tidal volume, L	2.6 ± 0.7	2.7 ± 0.6	2.1 ± 0.5	2.2 ± 0.5	0.01	0.12	0.98
Heart rate, beats/min	189 ± 9	184 ± 12	175 ± 14	172 ± 14	0.006	0.02	0.55
Oxygen pulse, mL/beat	14.9 ± 3.9	17.3 ± 4.0	12.9 ± 3.8	14.3 ± 3.5	0.06	<0.001	0.14
Respiratory exchange ratio	1.24 ± 0.14	1.19 ± 0.07	1.22 ± 0.11	1.17 ± 0.09	0.58	0.004	0.73
Rating of perceived exertion	20 ± 1	19 ± 1	19 ± 1	19 ± 2	0.21	0.29	0.76

We present data as mean ± SD. We compared values using two-way ANOVAs (group x time [repeated factor]).