Tag Archives: core

Want a strong core? Skip the 3- minute plank

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Recently, I walked by a packed evening kettlebell class, a room full of participants doing a terrific plank variation—slowly sliding a heavy weight in front of them from left to right, and vice versa. A plank is one of the gold standards for working the core in which you assume and hold a position. Sit-ups and crunches are no longer the norm for a great set of abs. Traditional core training sought to isolate a single area, such as the six-pack, which is problematic.

All movement originates through the core. The core is an integral part of the protective mechanism that relieves the spine of harmful forces during activities. Deep stabilizing muscles allow a protective mechanism for posture control and athletic performance.

The main reason sit-ups don’t help you is that they can damage the spine. The traditional sit-up, writes Dr. Stuart McGill in “Ultimate Back Fitness and Performance,” imposes about 730 pounds of compression on the spine. Those participants in the evening workout were shown ways to retire old concepts and learn from a great coach, in her presentation of fresher research: plank variations.

Secondly, planks recruit a balance of muscle from the front, sides and back of the body, as the core goes far beyond a six-pack. Even though Cher boasts about holding a three-minute plank, you don’t need to hold a plank that long. There are better ways to get strong. Once you can perform a 20-, 30- or 60-second plank, you can advance from a stability level to light loads and additional stimulus in a plank.

Here are two simple stability tests to determine your core strength before you add additional stimulus, as in that kettlebell class.

Forearm plank, 20 seconds

Forearm plank. All photos by Connie Aronson
  • Lie on the floor, with the feet flexed, toes towards the shins, and the elbows and forearms under the chest area. To begin, lift the body off the floor in a position in which the arms are perpendicular to the floor, and the elbows directly under your shoulders, hands under your face.
  • Brace the core, lock the knees and tighten the glutes.
  • Have a friend or partner place a long stick or broomstick in line with your spine.
  • Start the clock only when you are in straight body alignment.
  • Hold for 20 seconds.

Fail is any part of the body sagging away from the stick.

Pass is if your torso remains in full contact with the stick for 20 seconds without any noticeable quivering.

Anti-rotation Bird Dog

  • In a kneeling position with hands on the floor, have a friend or partner place a stick or broomstick in line with your spine.
  • To begin, raise the right arm up and extend it parallel to the floor.
  • Simultaneously raise the left leg up and extend it backward, also parallel to the floor.
  • Touch both the arm and foot back under the body to touch left elbow to right knee.
  • Return to the fully extended position for six repetitions. Repeat on the other side.

Fail is if at any point during the test, the body sags away from the stick, or it rolls off the back.

Pass is if you the body is in contact with the stick, and control is maintained throughout the test.

Straight arm plank with feet elevated

Example of an advanced plank, with increased involvement of the stabilizing muscles of the core.

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The bicycle twist is a core move for the morning

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Clients often tell me about their morning sequence to start their days, and I’m always proud that they take care of themselves. A morning core program can help maintain low back health, improve neuromuscular control, spinal stability, movement pattern efficiency, and injury prevention. But any ab or core exercise you choose needs to be effective, and not potentially lead to lower back pain.

A morning program is ideal for two reasons. First it’s typically the time in which your body is stiff, cold and most prone to injury. Having a routine prior to your busy day is like doing a pre-workout warm-up: It helps to increase soft-tissue blood-flow, warmth and pliability, facilitates neurological awareness and helps develop a psychological readiness for the day ahead. Second, a morning routine gives us another chance to make our habits stick, and if you miss doing it, you have another opportunity to do it later in the day.

The Bicycle Twist is a big external oblique winner.  

If you need a little help in choosing where to start, add Bicycle Twist to your routine, one of the best core exercises. Compared to a crunch, electromyography ( EMG ) shows that this exercise is 9 % more effective at targeting the rectus abdominis and 310 % more effective at targeting the external obliques.

It’s an ab exercise that many people know, also known in Pilates as Criss-Cross, and a go-to in yoga class.

Let’s include a brief anatomical overview of the ab muscles that this exercise targets. Four abdominal muscles hold the contents of the abdomen in place; the rectus abdominis, aka “six-pack”, which stabilize the pelvis and rib cage with respect to each other, transverse abdonimis, a deeper muscle that maintains intra-abdominal pressure, and is not involved in movements of the trunk, and the external and internal obliques that work together to help decelerate the spine as it arches backwards, rotates, and side bends. The external and internal obliques store potential energy, as in a follow-through in a golf swing.

The Most Common Mistake 

The Bicycle Twist targets the abs, yet most people do it wrong, and use the hip flexors. Stop using your hip flexors! They are typically stronger than the abs in trunk flexing movements; hip flexors bring the legs and trunk toward each other. Beyond 30 degrees, in the Bicycle Twist, crunches, or sit-ups, the powerful hip flexors begin to take charge of the movement. In real life, they are more likely to be strong, as you use them to create energy to help swing your leg forward in walking and running.  

Pilates mat exercise studies using EMG found that the hip flexors in Criss- Cross work at an intensity of 41 %. In other words, when you bring your knee towards your torso, the Criss-Cross, or Bicycle Twist becomes an ineffective exercise for the abdominals. The goal of ab training is to maximize the involvement of the abdominals, and minimize the hip flexors. 

Getting it right 

Keep your knees at 90 degrees, instead of flexing the hip to pull your knee in toward your elbow. This will give the back extra support and help target the obliques. 

Connie Aronson is an ACSM Exercise Physiologist and Corrective Exercise Specialist (TBBM-CES )  Visit her at www.conniearonson.com and  Instagram@conniearon

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Build core power and stability with the Farmer’s Walk

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The Farmer’s Walk is a great whole-body exercise.

Core stability is imperative for all facets of movement and performance, whether you’re a skier or skater.

As a new ski season kicks off, core strength can be a great asset to ski at a higher intensity, for a longer duration and with less fatigue. When you hit the terrain, you’ll want to have good core stability to not only turn well, but also handle different and varied snow conditions with ease. It’s not too late to add a great whole-body exercise called Farmer’s Walk—a walk with a weight—to your training program.  

Walking or any lower body movement where you carry or “load” yourself with a weight for a predetermined distance or time challenges the entire kinetic chain of the body and targets the deep stabilizing muscles of the core.

What is core stability?

The definition of core stability is your ability to maintain your posture and balance while moving your extremities. Sound a lot like skiing?

The core musculature has a unique function. Throughout the day, if you’re active, the core muscles act to stiffen the torso and function primarily to prevent motion. A strong core allows the strength to radiate out peripherally to the rest of the body.

Core stability is imperative for all facets of movement and performance, whether you’re a skier or skater. The Farmer’s Walk is a great whole-body exercise. The exercise targets the abdominals, and provides peak activation of all the muscles that support the spine, the gluteus maximus, gluteus minimus and cervical spine muscles during the walk. You’ll hit all the core muscles of the trunk and pelvic stability muscles, as well as the hips.

Together, these numerous and multi-jointed muscles are known as the lumbo-pelvic hip complex.

You can think of Farmer’s Walk as a vertical plank, a move that challenges the lumbo-pelvic hip complex. There are several variations of loaded carries, and here are two variations that will strengthen your core as well as challenge the body’s stabilizing system.

Unilateral Farmer’s Walk

Unilateral training exposes any asymmetries in the body. Noticeably, walking with a single weight provides a greater spine load than if the load were split between two hands. (For beginners, you might want to experiment with carrying a weight in each hand.) Carrying one weight targets the lateral spine muscles, called quadratus lumborum, and the lateral abdominal wall, which have an important role in that they stiffen the pelvis to prevent it from bending to the side of the leg swing.  The unilateral Farmer’s Walk also enhances the rotational demand to the core as the body now has to control the added stress in order to maintain dynamic balance.

 Choose weights that are challenging yet appropriate for your fitness level.

•    Squat down and grasp a weight in one hand. Maintain a braced core, and return to a stand-tall position.

•    Take slow and controlled steps forward for 30 seconds. Alternate sides.

Unilateral Farmer’s Walk

Unilateral Waiter’s Walk

An added benefit to this move is that it helps strengthen the muscles around the shoulder, referred to as glenohumeral stability, a term used to describe how the arm bone sits well into the shoulder and upper back muscles. Here’s how it’s done.  

•    Grab a weight in one hand and return to a stand-tall position.

•    Extend arm up overhead.

•    Keep a tight grip on the weight and take slow controlled steps forward for 30 seconds. Alternate sides.

Unilateral Waiter’s Walk

https://www.mtexpress.com/wood_river_journal/features/ski-fitness/article_9112101c-2db6-11eb-9a56-e30f89e1d500.html

The Dead Bug, aka Happy Baby, is a core move you should be doing

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The Dead Bug helps train the core muscles to be strong and enhance spinal stability.

Obtaining a strong core can be surprisingly easy. Even better, there are excellent exercises that you can do lying on your back, using a simple band as a progression. One of the best exercises taught by strength and team coaches, yoga teachers, Pilates instructors and the sports medicine community is the Dead Bug, also known as Happy Baby. The base move is an isometric bracing action, as if you’re readying to take a punch to the belly, which promotes core stability and strength in your torso. Progressions or regressions are then tailored to your abilities and fitness level.

In Dead Bug, the reciprocal arm and leg patterns, like a dying bug on the ground, resemble motor skills like walking, running and swimming. (Or a happy baby lying in a crib, arms and legs akimbo)

The key muscles you work during the Dead Bug primarily focus on the core musculature, the powerhouse of the body. Picture the muscles forming its structure of floor, walls and ceiling. This includes the erector spinae, the deep low back muscle known as multifidus, hip adductors, rectus abdominus and the internal and external obliques. Exercises like this enhance spinal stability by training the deep postural muscles that protect you while you play the sports that you enjoy. Core stability, or trunk stiffness, allows you to transfer force to your limbs so that you throw, strike, kick, push, swing or run better. In other words, all motions are generated from the core and are translated to the extremities.

Our nervous system prefers to move with the most efficiency at all times. If your core is weak, most likely your brain will want to make it easy for you, and compensate. But over time, the compensation will create greater degrees of wear and tear. For example, slouching and leaning on handles on a stair climber or treadmill will make it much easier. But the wear and tear is more likely to be around your neck and shoulders. This can result in even worse posture, as a weak core encourages slumping, which tips you forward and off balance.

It’s often thought that repetitive flexion and extension exercise, like the good old sit-up, are a good way to train the core. But these muscles are rarely used in this way because they are more often used to brace while stopping motion. Researchers found that disc injuries can develop through even low-compressive forces with excessive bending and extending. An isometric exercise like the Dead Bug helps train the core muscles to brace under heavy loads, which helps stabilize the spine and in turn prevents buckling.

Dead Bug/Happy Baby

Start by lying on your back. Your spine should not be arched or flattened. Draw the abdominals in to assume the neutral position.

Reach your arms up. Lift your legs off the floor, holding a 90-degree angle at your hips and knees.

Move your arms back and forth (like a baby reaching up to play with a mobile) Duration: 30 seconds. Progression: Extend your arms and legs towards the floor, creating longer levers to increase the level of difficulty. Click on the video to see more progressions: vimeo.com/389162099.

https://www.mtexpress.com/wood_river_journal/features/fitness-guru/article_9d47b746-490b-11ea-8988-9fc27539e035.html

Connie Aronson is an ACSM-certified exercise physiologist at the YMCA in Ketchum. Learn more at www.conniearonson.com.

Why Full Sit-ups Can Back-fire

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Core training is the foundation of great athletic performance, whether you’re a seasoned pro or week-end warrior. The core consists of the lumbo-pelvic-hip complex, and the thoracic and cervical spine-not just “abs”. 29 muscles attach to this powerhouse allowing   efficient acceleration, deceleration, and stabilization during dynamic movement. The abdominal wall, part of the core, is like an anatomical corset which also includes the deep transversus abdominis, which are below your belly button, internal obliques, the lumbar multifidus, pelvic floor muscles and the diaphragm. In any athletic move, these muscles work together, like a large stable column, to fire quickly and efficiently. This core, the body’s stabilization system, is like a good foundation on a home: if it’s not built right, the house will have problems somewhere down the road. In the gym, for example, someone lying on a weight bench lifting a bar for a chest press might have their lower back several inches arched in the air, demonstrating an inefficient core. So there is some misunderstanding of what kind of ab exercises work best to keep your mid-section strong .The full sit-up, for example, can place devastating loads on your spine. Simply modifying the sit-up to a partial curl-up, with the head and shoulders lifting a few inches off the floor, would be better.

In a New York Times article last month, titled Core Myths, the belief that the core means only the abs was challenged, for there is no science behind the idea. Stuart McGill, a professor of spine biomechanics and chair of the Department of Kinesiology at the University of Waterloo in Canada, compares the spine to a fishing rod supported by muscular guy wires. If all the wires are tensed equally, as in the whole lumbo-pelvic –hip complex, the rod stays straight. A core exercise program should emphasize all the muscles that girdle the spine, not just the abs, to ensure balanced strength. In his lab, he’s demonstrated how an average sit-up can exceed the limit known to increase the risk of back injury in normal American workers. In fact, in 1991, the safety of the full sit-up test was deemed no longer recommended for school-aged children as a means to test their abs. Instead, the partial curl was recommended.        

The full sit-up is 3 muscle actions: neck flexion, spine flexion, and hip flexion. It’s important to be able to sit up, no doubt, but repeated sit-ups   can place hundreds of pounds of compression on the lumbar disks. Hooking or holding the feet down places even greater stresses to the low back. Ironically, the bent knee sit-up has been taught to minimize the action of the hip flexor in the sit-up, though it is not correct. The abs can only curl the trunk. The sit-up is a strong hip flexor exercise whether the knees are bent or straight.

 Instead of full sit-ups, research shows that although there is no ideal exercise for each individual, the traditional crunch, or many variations of a curl-up, with the head and shoulders lifting a few inches off the floor, holding briefly, is a good exercise to challenge the abdominal muscles while imposing a minimal load to the lumbar spine. Speed of movement has an impact also. In The Journal of Strength and Conditioning Research May 2008, curl-up speeds were shown to have a significant impact on spinal loads, and that the combination of slow and moderately controlled speeds  is generally recommended for health and fitness programs. In their opinion, at the competitive level, coaches can choose fast explosive trunk exercises, but to also aim for a more varied program that includes trunk endurance, strength and good motor patterns that ensure spinal stability.

McGill says that 3 exercises, done regularly, can provide a well-rounded core stability program: practice the curl-ups, learn how to do a side-plank (lie on your side and raise yourself in a straight line, and the “bird dog” (from all fours, hands and knees, you raise an alternate arm and leg level  for 4 or 6 seconds) .

 

 Connie Aronson is an ACSM Health & Fitness Specialist in Ketchum, Idaho

Printed in the Idaho Mountain Express August 28, 2009