The Role of Moderate Aerobic Exercise as Determined by Cardiopulmonary Exercise Testing in ALS

Table 4

Cardiopulmonary exercise testing measurements at the anaerobic threshold (AT). -test.

CPET variables (L/min)	Group 1	Group 2	value; -test (G1-G2)
	(mean ± sd)	(mean ± sd)
T1	0.80 (0.25)	0.83 (±0.28)	0.8
T2	0.79 (±0.29)	0.40 (±0.15)
METS T1	3.62 (±1.7)	3.77 (±0.95)	0.8
METS T2	3.54 (±1.38)	2.15 (±0.97)	0.07
VCO2   T1	0.70 (±0.27)	0.71 (±0.29)	0.9
VCO2   T2	0.68 (±0.35)	0.30 (±0.14)
VE T1	22.6 (±6.40)	23.3 (±8.17)	0.8
VE T2	25.2 (±12.2)	14.62 (±2.85)	0.10

T1: admission, T2: end of study. VO2 AT (oxygen uptake peak at anaerobic threshold), VCO2 (carbon dioxide output), METs (metabolic equivalent), and VE (minute ventilation) are expressed in L/min. Significant results (p ≤ 0.05) are represented in bold.