Tip: Do This Exercise for Complete Core Strength

Tip: Do This Exercise for Complete Core Strength

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<h2 class="article-detail">Most people leave out this part of the ab training equation. Don't do that. Try this challenging exercise.</h2>
<div class="article-detail-byline"><span class="byline">by <a href="https://www.t-nation.com/all-articles/authors/mike-robertson">Mike Robertson</a> |</span> <span class="timeStamp3">Yesterday</span></div>
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<div class="articleLeadImage"><img alt="Tip-do-this-exercise-for-complete-core-strength" src="https://www.t-nation.com/system/publishing/articles/10003284/original/Tip-Do-This-Exercise-for-Complete-Core-Strength.jpg?1453998832"/>;
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<p>There's a category of core strength called "hip flexion with neutral spine." And it's overlooked by most athletes. This category consists of any exercises where you're actively bracing your core/lumbar spine while bringing your knees to your chest. Here's one of the best exercises to train it.</p>
<h4>Band Resisted Jackknife</h4>
<p><iframe width="620" height="349" src="//www.youtube.com/embed/yk54aIl6Qi0?autoplay=0&rel=0" frameborder="0" allowfullscreen="">[embedded content]</iframe></p>
<p>This is probably the most challenging subset of core exercises. The focus here should be on keeping your lumbar spine in a neutral alignment throughout, with no lumbar flexion or "tucking." Proper cueing here is critical. Focus on the following:</p>
<ol><li>Chest up and out. <span>No hunching over to brace.</span></li>
<li>Lock down your midsection. <span>Allow as little movement here as possible.</span></li>
<li>Use your hip flexors to "pull" your knees to your chest. <span>Exercises like this can help improve your setup/tension in the hole when squatting and pulling. Maintain neutral and "pull" your knees to your chest.</span></li>
</ol><p>It's not going to be perfect early on, but really focus on staying as stable and neutral as possible.</p>
<h4><a href="https://www.t-nation.com/training/21st-century-core-training">Related:  21st Century Core Training</a></h4>
<h4><a href="https://www.t-nation.com/workouts/4-minutes-to-core-strength">Related:  4 Minutes to Core Strength</a></h4>
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