Table 5

Changes (Δ) in Cardiorespiratory, Muscular, and Metabolic Parameters After 3 Months of Testosterone Supplementation Therapy in Patients With Low (i.e., <12 nmol/l) and Normal Baseline Testosterone Levels

Low TestosteroneNormal Testosterone
Peak VO2, ml/kg/min4.0 ± 1.82.6 ± 1.2
VE/VCO2slope−4.9 ± 1.6−4.1 ± 1.5
6MWT, m96.5 ± 3380.7 ± 28
MVC, Nm39.1 ± 6.216.0 ± 5.6
PTmax, Nm10.0 ± 2.110.4 ± 2.1
HOMA-IR−0.5 (0.3–0.7)−0.4 (0.2–0.8)

Data are expressed as mean ± SD or as median (interquartile range) for HOMA-IR.

Abbreviations as in Tables 2 to 4.

  • p < 0.05.