Effects of Mechanical Stretch on Cell Proliferation and Matrix Formation of Mesenchymal Stem Cell and Anterior Cruciate Ligament Fibroblast

Table 1

Effects of strains at various frequencies on fibroblasts.

Function	Uniaxial stretch									Radial stretch
	0.1 Hz			0.5 Hz			1.0 Hz			0.1 Hz			0.5 Hz			1.0 Hz
	5%	10%	15%	5%	10%	15%	5%	10%	15%	5%	10%	15%	5%	10%	15%	5%	10%	15%
	(strain)			(strain)			(strain)			(strain)			(strain)			(strain)
Proliferation										—	—	↑	—	↓	—	↑	↑	↓
Collagen										↑	↑	—	↑	↓	—	—	—	↓

“”: increase; “”: decrease; “—”: no difference ().