Table 3.

Average slopes indicating change in bone biochemical analytes during bed rest.

Analyte	Control		Exercise
	Mean	SD	Mean	SD
Creatinine (mg/day)	− 9.87	32.42	− 3.35	23.44
Calcium (mg/day)	2.89	10.01	− 1.44	3.59
NTx (nmol/mmolCr)	0.97	0.46	0.58	0.31
BSAP (U/L)	0.43	0.53	0.41	0.59
RANKL (pmol/L)	2.16	1.12	− 0.14	5.40
OPG (pmol/L)	0.03	0.05	0.01	0.03
Sclerostin (pmol/L)	1.61	2.68	0.72	0.86