Table 2.

Adjustments induced in subjects which completed endurance training composed of 6-weeks of supervised bicycle exercise (n = 16, a) or 6-months of self-regulated running (n = 19, b)

Factor	Fold	p-value
a) bicycling
Absolute VO2max	1.09 ± 0.02	2E−5
Relative VO2max	1.10 ± 0.01	2E−6
Body weight	0.99 ± 0.01	0.26
Fibre CSA	0.98 ± 0.05	0.76
Capillary-to-fibre ratio	1.10 ± 0.04	0.02
Capillary density	1.15 ± 0.06	0.01
Residual Vv	1.29 ± 0.05	9E−5***
Myofibre Vv	0.92 ± 0.01	8E−6***
Intramyocellular lipid Vv	2.13 ± 0.40	7E−4*
Total mitochondria Vv	1.43 ± 0.07	2E−6*
Subsarcolemmal mitochondria Vv	2.50 ± 0.36	1E−5**
Central mitochondria Vv	1.28 ± 0.06	8E−5
b) running
Absolute VO2max	1.08 ± 0.02	3E−3
Relative VO2max	1.09 ± 0.03	3E−3
Body weight	1.00 + 0.04	0.20
Fibre CSA	1.03 ± 0.04	0.58
Capillary-to-fibre ratio	1.06 ± 0.04	0.15
Capillary density	1.05 ± 0.04	0.36
Residual Vv	0.99 ± 0.04	0.76
Myofibre Vv	0.99 ± 0.01	0.31
Intramyocellular lipid Vv	1.11 ± 0.18	0.49
Total mitochondria Vv	1.21 ± 0.06	4E−3
Subsarcolemmal mitochondria Vv	1.60 ± 0.23	0.07
Central mitochondria Vv	1.17 ± 0.06	0.01

P-values of paired T tests passing a Bonferroni correction are underlined

Vv volume density

*, ** and ***, respectively, denote p-values <0.05, <0.01 and <0.001 for the comparison of fold changes after bicycle versus running type endurance training