Lack of flexibility in which of the following muscle groups can cause anterior pelvic tilt? Naim 10:58 Biomechanics Lack of flexibility in which of the following muscle groups can cause anterior pelvic tilt?A. hip flexorsB. erector spinaeC. abdominalsD. both A and BE. all of the aboveAnswer: D. both A and B Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+