Table 1

Participants’ physical performance results by group

Performance characteristics	PD n=42	C n=30	Total n=72	p Value	Value of statistical test
RHR (bpm)	84.00±7.32	85.23±8.09	84.51±7.62	>0.05	Z=−0.69, U=569.00
PMHR (bpm)	200.85±6.33	207.34±0.95	203.55±5.82	<0.05	Z=−7.00, U=29.00
HRRDT (bpm)	178.86±7.28	183.03±4.97	180.60±6.71	<0.05	Z=−2.54, U=408.00
VO₂max (mL/kg/min)	29.42±6.50	34.51±5.35	31.54±6.51	<0.05	t=−3.51
90%VO₂max (mL/kg/min)	26.48±5.85	31.06±4.81	28.39±5.86	<0.05	t=−3.51
HR 90%Vo₂max (bpm)	160.97±6.55	164.73±4.48	162.54±6.04	<0.05	Z=−2.54, U=408.00
RPE 90%Vo₂max	18.93±0.55	16.67±0.60	17.99±1.26	<0.05	Z=−7.42, U=8.00
RPE scale to 90% VO₂max and HR Measured at 90% VO₂max in the PD group		Smoker	2.27±1.28	>0.05	Z=−0.87, U=148.50
		Non-smoker	1.70±1.34
HRRDT x RPE scale to 90% VO₂max and HR measured at 90% VO₂max		PD		r= −. 511*
		C		r=0.005*

The results are presented as mean and SD.
*Pearson's correlation. Alpha was set to 0 .05 for all statistical analyses.
HR, heart rate; HRRDT, heart rate reached during test; HR 90%Vo₂max, heart rate at 90% of maximal oxygen consumption; PMHR, predict maximum heart rate;RHR, resting heart rate; VO₂max, maximal oxygen consumption; 90%VO₂max, 90% of the maximal oxygen consumption; RPE 90%Vo2max, Borg's RPE Scale values at 90% of maximal oxygen consumption.