CD	Cluster of differentiation
CMP	Cytosine monophosphate
CO2	Carbon dioxide
COL2A1	Collagen Type II Alpha 1 Chain
COMP	Cartilage Oligomeric Matrix Protein
COX	Cyclooxygenase 2
CPCs	Circulating progenitor cells
CTP	Cytidine-triphosphate
DMEM	Dulbecco’s Modified Eagle Medium
ECM	Extra cellular matrix
FBS	Fetal bovin serum
GAG	Glycosaminoglycan
HDL	High Density Lipoprotein
HM	Half marathon
IL1β	Interleukin 1 Beta
IQR	Interquartile range
KBP	Kashin–Beck disease
LDL	Low Density Lipoprotein
MSC	Mesenchymal stem cell
OA	Osteoarthritis
PA	Physical activity
PFA	Paraformaldehyde
PLP	Pyridoxal 5′-phosphate
ROS	Reactive oxygen species
RT	Reverse transcription
RUNX2	Runt-Related Transcription Factor 2
SOX9	Transcription Factor SOX-9
TIC	Total ion chromatogram
UMP	Uridine monophosphate
Vit.B6	Vitamin B6