Table 2

Comparison of cardiorespiratory performance parameters and perceived effort during three different levels of production standard time (P100, P115, P130)

ParameterP100P115P130P valueηp 2
V̇E (L/min−1)15.95±2.8016.69±2.5317.12±3.29*0.0420.25
V̇O2 (L/min−1)0.48±0.100.50±0.090.52±0.12**0.0070.36
V̇CO2 (L/min−1)0.43±0.090.45±0.080.46±0.11*0.0260.28
RER (a.u.)0.89±0.040.89±0.030.89±0.040.6690.04
HR (min−1)78.0±10.681.9±9.577.5±14.20.3400.11
RPE (a.u.)3.6±2.74.3±2.13.9±2.60.6600.04
  • *Significantly higher than P100 (p<0.05).

  • **Significantly higher than P100 (p<0.01).

  • Furthermore, F-test p values (1×3-rANOVA) and effect sizes (ηp 2, partial eta squared) are also provided.

  • HR, heart rate; rANOVA, repeated measure analyses of variance; RER, respiratory exchange ratio; RPE, rating of perceived effort; V̇CO2, acute carbon dioxide release; V̇E, total ventilation; V̇O2, acute oxygen uptake.