Table 5. Comparing cardiometabolic variables and RPE among the three CrossFit® WODs.
Variable WOD M ± SD CI (95%) P
HR final
(bpm)		 1 187 ± 9 184 to 191 0.161
2 183 ± 8 180 to 186
3 185 ± 10 181 to 188
HRmean
(bpm)		 1 178 ± 9§ 175 to 182 0.010 *
2 178 ± 9â•‘ 175 to 181
3 171 ± 11 167 to 176
[Lactate] rest
(mmol·L-1)		 1 1.55 ± 0.61 § 1.33 to 1.76 0.016† 
2 1.30 ± 0.37 1.17 to 1.44
3 1.23 ± 0.32 1.12 to 1.35
[Lactate] final
(mmol·L-1)		 1 12.02 ± 2.12 ‡ 11.25 to 12.79 0.032 † 
2 10.37 ± 2.91 9.32 to 11.43
3 11.49 ± 2.46 10.61 to 12.38
RPE final
Muscular		 1 16.96 ± 1.97 § 16.26 to 17.68 0.033† 
2 15.68 ± 2.91 14.64 to 16.74
3 15.53 ± 2.10 14.77 to 16.29
RPE final
Cardio		 1 17.09 ± 1.69 § 16.48 to 17.70 0.000 *
2 16.12 ± 2.18 15.34 to 16.91
3 15.00 ± 1.90 14.31 to 15.69
RPE final
General		 1 17.62 ± 1.60‡§ 17.05 to 18.20 0.000 *
2 16.00 ± 2.32 15.16 to 16.84
3 15.65 ± 2.02 14.93 to 16.39
HR = heart rate; RPE = rate of perceived exertion; bpm = beats per minute; CI = confidence interval; WOD 1 = G modality CrossFit® workout of the day (“Cindy”); WOD 2 = M modality CrossFit® workout of the day (skip rope double unders); WOD 3 = W modality CrossFit® workout of the day (power cleans)* = significant difference between WODs; p≤0.01.†  = significant differences between WODs; p <0.05.‡ = significant difference WOD 1 vs 2 (p≤0.05).§ significant difference WOD 1 vs 3 (p≤0.05).â•‘, significant difference WODs 2 vs 3 (p ≤0.05).