Table 1.

Cardiomyocyte mechanics

Significance	Wild Type	Homozygote Mutant
Myocyte length* (µm)	64 ± 2	106 ± 3	P< 0.001
Myocyte width* (µm)	28 ± 2	67 ± 4	P<0.001
Slack sarcomere length (µm)	1.88 ± 0.04	2.02 ± 0.04	P<0.01
Mean failure sarcomere length (µm)	2.48 ± 0.05	No failure to SL > 4.0 µm
Mean percent stretch at failure	32 ± 2	No failure at 100% stretch
Mean failure force (N/m2)	2.66 ± 0.32	>5.18 ± 0.74 (last recorded force)

^*Myocyte length and width measurements were obtained from images of bulk digests.