Table 6 Number of studies of brain structure and muscle structure, direction of effect and number of subjects

Whole brain size and muscle size

-

1 (70)

2 (311)

[26–30]

White matter volume and muscle size

-

-

1 (70)

[28–31]

Grey matter volume and muscle size

1 (76)*

2 (146)*

-

[28–31]

Hippocampal volume and muscle size

-

2 (121)

-

[27–30]

Cerebellar volume and muscle size

-

1 (51)

-

[27]

Ventricular volume and muscle size

-

1 (51)

-

[27]