Skip to main content
. 2015 May 1;309(1):L46–L52. doi: 10.1152/ajplung.00064.2015

Table 3.

Diaphragm muscle properties across the lifespan in mice

Two-Way ANOVA P Value
Male Female Age effect Sex effect Interaction
Pt, N/cm2 <0.001 0.166 0.358
    Young 6.2 ± 0.3 6.4 ± 0.3
    Old* 4.3 ± 0.5 5.1 ± 0.3
Pt/Po 0.474 0.354 0.881
    Young 0.31 ± 0.01 0.32 ± 0.01
    Old 0.33 ± 0.03 0.34 ± 0.02

Values are means±SE (n = 8/group). Maximal twitch force (Pt) and isometric tetanic force (Po) are normalized to physiological cross-sectional area.

*

Significantly different from young group.