From David Camarillo's "Position Impossible" series, Dave shows a common submission grappling scenario of being put into an armlock, and how to prevent the situation from getting worse. See review at http://www.bullshido .net/forums/showthre ad.php?p=1320549
Karl Gotch's training video for martial artists - "Conditioning for Combat Sports." See the review and other information for this video at Bullshido.net - http://www.bullshido .net/forums/showthre ad.php?t=48285