This happens to me too. It turns out that I have a tight/overstrained hip flexors. My physiotherapist told me that I need to make my hips stronger to be able to bear the stress of the exercise that I put it through. Exercises such as pilates clamshells are one way to do this. Also, using a foam roller to roll out the tight hip muscles really helps.
©2007.C. W. Randolph, M.D., Genie James. All rights reserved. Reprinted from From Belly Fat to Belly Flat. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, without the written permission of the publisher. Publisher: Health Communications, Inc., 3201 SW 15th Street , Deerfield Beach , FL 33442.
Dr. Travis Stork is an Emmy®-nominated host of the award-winning talk show The Doctors, and a board-certified emergency medicine physician. He graduated Magna Cum Laude from Duke University as a member of Phi Beta Kappa and earned his M.D. with honors from the University of Virginia, being elected into the prestigious honor society of Alpha Omega Alpha for outstanding academic achievement. Based on his experiences as an ER physician, Dr. Stork is passionate about teaching people simple methods to prevent illness before it happens with the goal of maximizing time spent enjoying life while minimizing time spent as a "patient." Dr. Stork is a New York Times #1 bestselling author of “The Doctor’s Diet,” “The Doctor’s Diet Cookbook,” “The Lean Belly Prescription,” and “The Doctor Is In: A 7-Step Prescription for Optimal Wellness.” An avid outdoorsman, Dr. Stork is a devotee of mountain and road biking, whitewater kayaking and hiking with his loyal dog of nearly seventeen years, Nala.