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. 2021 Jan 20;18(3):860. doi: 10.3390/ijerph18030860

Table 3.

Performance variables throughout the cool down across the menstrual cycle phases.

EFP LFP MLP c2 p
Ve (L/min) 43.2 ± 6.4 42.6 ± 6.1 45.9 ± 6.0 10.048 0.007 £
BF (breaths/min) 37.2 ± 6.5 37.7 ± 6.4 38.9 ± 6.1 6.723 0.035 γ
VO2/Kg (mL/kg/min) 19.5 ± 2.7 19.0 ± 2.5 1975 ± 2.0 3.900 0.142
VCO2 (mL/min) 1069.4 ± 180.8 1058.4 ± 164.9 1109.6 ± 132.0 9.300 0.010 £
RER 0.94 ± 0.06 0.97 ± 0.08 0.97 ± 0.07 2.947 0.229
HR (bpm) 137.9 ± 15.2 138.5 ± 13.6 137.3 ± 13.6 0.824 0.662
EE (Kcal/day) 8046.8 ± 1304.3 7865.7 ± 1390.3 8136.7 ± 1117.6 7.300 0.026 £
RPE 9.8 ± 2.9 9.4 ± 2.0 10.0 ± 2.5 2.596 0.273
PR 4.1 ± 1.1 4.3 ± 0.7 4.0 ± 1.0 5.056 0.080

EFP: early-follicular phase; LFP: late-follicular phase; MLP: mid-luteal phase; Ve: ventilation; BF: breath frequency; VO2: oxygen consumption; VCO2: carbon dioxide production; RER: respiratory exchange ratio; HR: heart rate; EE: energy expenditure; RPE: rate of perceived exertion; PR: perceived readiness. £ Significant differences in LFP compared to MLP. γ Significant differences in EFP compared to MLP.