Passive would be stretching using the body weight eg. leaning over, and active would be to contract the opposing muscle groups eg. hip flexors or quads to stretch the hams. The latter I suppose could be ballistic.
Passive would be stretching using the body weight eg. leaning over, and active would be to contract the opposing muscle groups eg. hip flexors or quads to stretch the hams. The latter I suppose could be ballistic.