Table 2.

Exercise Testing Values of the Study Population^a

Variable	BB n = 59	NBB n = 115)	P Value BB Versus NBB
HRrest, bpm	66 ± 12.2	70 ± 10.6	.038b
HRsubmax, bpm	92 ± 16.2	99 ± 15.2	.007b
HRpeak, bpm	123 ± 19.8	129 ± 20.1	.073
HRreserv, bpm	57 ± 17.1	59 ± 17.4	.464
HRrec1, bpm	103 ± 18.9	109 ± 16.9	.023b
HRrecov, bpm	20 ± 12.3	20 ± 11.0	.699
Peak blood pressure, mm Hg
Systolic	190 ± 26.2	183 ± 24.2	.093
Diastolic	86 ± 11.4	86 ± 11.3	.962
${\dot{\text{V}}\text{o}}_{2\text{rest}}$, mL·kg−1·min−1	3.4 ± 0.6	3.4 ± 0.5	.711
${\dot{\text{V}}\text{o}}_{2\text{submax}}$, mL·kg−1·min−1	8.6 ± 1.4	8.5 ± 1.5	.586
${\dot{\text{V}}\text{o}}_{2\text{peak}}$, mL·kg−1 ·min−1	14.1 ± 3	13.8 ± 2.9	.479
RERpeak	1.1 ± 0.1	1.1 ± 0.1	.863

Abbreviations: BB, participants with β-blocker therapy; HR_peak, peak HR; HR_rec1, heart rate at 1-min recovery; HR_recov, heart rate recovery = (HR_peak− HR_rec1); HR_reserv, heart rate Reserve = (HR_peak− HR_rest); HR_rest, resting HR; HR_submax, HR at submaximal load; NBB, participants with no β-blocker therapy; RERpeak, peak respiratory exchange ratio; ${\dot{\text{V}}\text{o}}_{2\text{peak}}$, peak oxygen uptake; ${\dot{\text{V}}\text{o}}_{2\text{rest}}$, resting oxygen uptake; ${\dot{\text{V}}\text{o}}_{2\text{submax}}$, submaximal oxygen uptake.

^aValues are means ± SD.

^bSignificantly different from BB (P < .05).