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Table 2 RPE, blood lactate concentration, body weight, and body temperature

From: The effects of temporal neck cooling on cognitive function during strenuous exercise in a hot environment: a pilot study

Condition Variable Rest Exercise After
Hot RPE 7.3 ± 0.4 15.9 ± 2.0*  
Blood lactate concentration, mmol/l 1.0 ± 0.2   5.3 ± 1.9*
Body weight, kg 69.1 ± 7.5 68.8 ± 7.5*  
Body temperature, °C 36.1 ± 0.6 38.4 ± 0.4*  
Hot + Cooling RPE 7.1 ± 0.9 15.8 ± 1.7*  
Blood lactate concentration, mmol/l 1.0 ± 0.2   5.5 ± 1.7*
Body weight, kg 68.9 ± 7.7 68.6 ± 7.7*  
Body temperature, °C 36.5 ± 0.6 38.3 ± 0.3*  
  1. Values are mean ± SD.
  2. RPE ratings of perceived exertion.
  3. * p < 0.001, vs. rest.