Short-Duration Swimming Exercise after Myocardial Infarction Attenuates Cardiac Dysfunction and Regulates Mitochondrial Quality Control in Aged Mice

Table 2

Mitochondrial morphological parameters of aged hearts after 8 weeks of swimming training.

Parameter	Mean ± SEM
	Sham; ()	MI-sedentary; ()	MI + 15’ ST; ()	MI + 60’ ST; ()
Area (μm^2)	0.65 ± 0.05	1.17 ± 0.12	0.64 ± 0.06^#	1.11 ± 0.15^,&
Aspect ratio	1.97 ± 0.11	1.15 ± 0.21	2.35 ± 0.26^,##	1.53 ± 0.08^,&
Circularity	0.73 ± 0.03	0.88 ± 0.03	0.67 ± 0.04	0.77 ± 0.02
Roundness	0.52 ± 0.04	0.73 ± 0.05	0.50 ± 0.05^#	0.68 ± 0.04^&
Solidity	0.97 ± 0.01	0.84 ± 0.02	0.91 ± 0.01	0.96 ± 0.01

, versus the sham group; , versus the MI-sedentary group; versus the MI + 15’ ST group. .