Tests at Otago University in New Zealand showed those using deer antler had almost twice the improvement in a strength test relative to those not taking the tonic. Rowers, swimmers, a triathlete and a surf lifesaver trialling the use of deer antler in sport have set personal best times, reached, or exceeded their previous top ranking performances. White blood cell production increased, an indication of immune system stimulation. Further trials showed those faster recovery from exercise induced muscle tissue damage in those athletes taking dietary supplements of New Zealand deer antler. The velvet supplements affected bloodstream levels of creatine kinase.
Creatine kinase indicates muscle tissue damage.
Significantly lower blood level increases were noted in athletes taking the velvet supplement for two weeks, compared with those on a placebo. The athletes on the supplement also recovered from muscle soreness 24 hours earlier. Adrenal cortex hormones, and by extension possibly ginseng, increases blood sugar levels, and regulates and optimizes the mineral balance in cells. The purpose is to have the bodies metabolic processes in peak condition to meet a stressful situation. This is a biochemical 'adaptive reaction' to felt stress.