Abstract: A prophylactic knee support(s) including a planar impact bar attached to upper and lower mounting bars. The upper and lower mounting bars are fastened to portions of the leg above and below the knee of the user by wraps encircling the appropriate leg portions. Shock absorbers and pressure plates are associated with the impact and mounting bars so as to absorb and dissipate forces resulting from blows directed on the impact bar. The absorption and dissipation diminishes the effect of the blow on the knee including the possibility of undesirable lateral shifting and/or twisting of the knee in response to said blow.