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. Author manuscript; available in PMC: 2025 Oct 24.
Published in final edited form as: Am J Physiol Endocrinol Metab. 2025 Aug 12;329(4):E477–E494. doi: 10.1152/ajpendo.00110.2025

Table 2.

Longitudinal Sections (2D) Measurements.

(2D Longitudinal) YMM (n=5) YFM (n=5) OMM (n=5) OFM (n=5)
Branch Length·Area−1 2.20 ± 0.22 2.07 ± 0.23 2.11 ± 0.27 2.15 ± 0.34
MFF ( *# ) 3.57 ± 0.63 3.13 ± 0.58 2.49 ± 0.12 2.63 ± 0.24
Average Branch Diameter ( *# ) 0.36 ± 0.01 0.36 ± 0.01 0.34 ± 0.02 0.35 ± 0.02
Mito Branches·Area−1 ( *# ) 2.71 ± 0.30 2.56 ± 0.32 2.04 ± 0.12 2.22 ± 0.26
Average Branch Length ( *# ) 1.10 ± 0.15 0.98 ± 0.18 0.71 ± 0.09 0.82 ± 0.12
Mitochondrial Count ( *# ) 374 ± 108 350 ± 140 404 ± 202 535 ± 356

Quantitative measurements of mitochondrial and cellular structure parameters from n=5 mice in each of the 4 groups of skeletal muscle from young and old, male and female mice. Data were grouped by sex (Male and Female) and age (Young and Old). Data are reported as mean ± SD and reporting changes that are associated with aging. Statistical significance was assessed using an ordinary two-way ANOVA with biological replicates, with Bonferroni correction for multiple comparisons. Significance was determined at p < 0.05, (* significantly different for males, # significantly different for females, *# significantly different for both groups).