From: The reproducibility of measurements of intramuscular magnesium concentrations and muscle oxidative capacity using 31P MRS
Subject characteristics
Physical activity
Age
Height
Weight
Min/week
Years
Cm
Kg
Light
Moderate
Heavy
Mean
22
179
82
131
76
30
SD
1.9
3.7
33.1
78.5
42.3
31.8