. 2018 Jan 31;2018:8218697. doi: 10.1155/2018/8218697

Table 5.

Correlations between ALSFRS-R total score and CPET variables on the peak of effort at T2.

CPET variables (L/min)	ALSFRS- R total score in T2
CPET variables (L/min)	Pearson correlation	Sig. (2-tailed)
METS	0.491	0.017^∗
RCP	0.256	0.239
VCO₂	0.580	0.004^∗
VE	0.585	0.003^∗
VO_2Peak	0.544	0.007^∗

ALSFRS-R (ALS functional scale revised), METs (metabolic equivalent), VCO2 (carbon dioxide output), RCP (respiratory compensation point), VO2 peak (oxygen uptake peak), and VE (minute ventilation) expressed in L/min. ^∗Significant results (p ≤ 0.05) are represented in bold.