Anatomy/Kinesiology
An Eye on Vision Health
When it comes to muscles, we rarely think about our eyes, and yet the eye is the fastest and most active muscle in the human body (VSP 2018). We say “in the blink of an eye” for a reason! While you probably don’t program “eye lifts” into your strength training routines, exercise does support healthy vision. Read on to find out more about the benefits, along with a few fun facts you can share with clients to further inspire them to keep moving.
Stand Up to Aging
Getting up off the ground grows more difficult as we age. Muscles and bones weaken, coordination becomes less fluid, and simply doing chores around the house gets more challenging. Ground-to-standing (G2S) exercises address these changes. hile even performance athletes can benefit from G2S drills (see the sidebar “G2S Exercises Also Help Performance Athletes”), they’re supremely helpful for older exercisers who are at risk for broken hips and other threats to their mobility.
The Pancreas: Two Glands in One
Located behind the stomach in the upper abdomen, the pancreas is a glandular organ that has two primary “jobs.” It is both a digestive exocrine gland (secreting products via ducts) and a hormone-producing endocrine gland (secreting substances directly into the bloodstream). The pancreas excretes enzymes to break down the foods we eat, and it secretes insulin and glucagon to control blood sugar (Taylor 2018). Spongy, and shaped like a flat pear, it’s about 6–10 inches long (Columbia University Medical Center 2018).
Bone Loss: A Primer
Bone loss is a normal part of aging, and understanding it can help fitness professionals to develop preventive strategies for their clients.
The Subtalar Joint: An Important Link in the Kinetic Chain
You may have noticed that many of your clients are blissfully unaware of just how much work the foot and ankle complex does—unless and until, of course, an ankle sprain or tendinitis occurs. The ankle “negotiates” ground reaction forces, informing the kinetic chain in numerous ways. Among other functions, the feet and ankles help the body adapt to uneven terrain through side-to-side movement (Price 2008).
Walking Speed: A Predictor of Functional Health
Slow walking speed has been linked to a greater risk of mortality in older adults, while brisk walking has been linked to better health.
Spotting and Fixing Flaws in Walking Biomechanics
Participating in a program of regular exercise is a good idea at any stage of life, but particularly as we get older. Exercising frequently and consistently has many documented benefits, including promoting good health, preventing disease, enhancing mental health and physical capacity, aiding recovery from injury and illness, minimizing the effects of aging, and improving one’s ability to handle the physical demands of life (Bird, Smith & James 1998).
Two Research-Based Reasons Not to Skip Leg Day
High-Volume Lower-Body Workouts Contribute To Upper-Body Strength
Can lower-body resistance training produce improvements in upper-body maximal strength? That was the question posed in a study published in The Journal of Strength and Conditioning Research (2018; 32 [1], 13–18).
Secrets of Muscle Growth
Muscle growth is often a goal for people seeking guidance from qualified fitness professionals. Recently, researchers from the University of Cumbria in Lancaster, England, reviewed relevant scientific papers to find best practices for achieving that goal.
The review authors looked at several primary factors associated with muscle hypertrophy: training volume, load, training frequency, training to momentary muscle failure, exercise variation, contraction type, exercise order, repetition tempo and interest recovery. Here’s a sampling of the conclusions:
Learning About Lymph
Any routine visit to the physician includes the familiar cold-hands-under-the-earlobes lymph node check. But how often do you think about what the doctor is checking for or how important the lymphatic system is? And have you told your clients that physical activity plays a key role in supporting this crucial system?
Smoking and Musculoskeletal Injury Risk
Researchers have identified more reasons to quit smoking and to alert any clients who do smoke. A recent research review on smoking and musculoskeletal injury risk in military trainees found that for those who smoked, injury risk was 31% higher for men and 23% higher for women. The risk grew as smoking levels increased. For example, among the heaviest smokers, risk increased up to 84% for men and up to 56% for women.
Shoulder Blades: The Right Moves
The shoulder blades, or scapulae, are critical links in the kinetic chain from the waist through the shoulders, up to the neck and down to the fingertips. Abnormalities in the position or movement of the shoulder blades—technically called scapular dyskinesis—can trigger pain and discomfort, especially among people who spend long hours sitting and using computers.
Programming to Prevent ACL Injury
Your new client, 16-year-old Alexis, is a competitive athlete who wants you to design a fitness program that will help her prevent a second anterior cruciate ligament (ACL) tear. She partially tore her ACL while playing soccer and rehabbed it with a physical therapist, who cleared her to play again. Alexis returned to spring softball without an issue, but she would like to be as fully prepared as possible for the upcoming fall soccer season. She hopes to be recruited to play in college, but her parents are concerned she will sustain another ACL injury, perhaps a more severe one.
Range of Motion: Full or Partial?
Research shows there’s a time and place for both full and partial range of motion in resistance training program design.
Some training systems purposely use partial ROM for various exercises. Moreover, certain surgeries and orthopedic injuries require partial-ROM movements during rehabilitation (Pinto et al. 2012). It seems natural for personal trainers to wonder which is superior: full ROM or partial ROM? ,/p>
Two studies comparing the benefits of partial ROM and full ROM give a clearer view of the landscape.
Getting to the Bottom: The Ischial Tuberosity
The posterior aspect of the body, along with its muscles, tendons, bones and attachments, is easy to overlook because it’s out of sight and, therefore, often out of mind. Until, that is, pain occurs. The ischial tuberosity—also known as the “sit bones” or even “sitz bones” (from the German word sitzen) (Garikiparithi 2017)—has many different connections, although it is mainly associated with the hamstring muscles (Drake et al. 2010).
Exercise’s Impact on Cancer
There are three ways to look at battling cancer. For those who don’t have it, lowering risk is the primary goal. For those who’ve had it, successfully recovering and, of course, reducing the chances of recurrence are of utmost importance. For those who currently have it, the priorities are getting rid of it and minimizing the harmful effects that both the disease and the treatment have on the body. Exercise has been shown to help with all three.
Multiple Planes, Many Positions
Participants may have a love-hate relationship with your core routines, but there’s no reason why you can’t make things fun while helping people to move, feel and look better. Ideally, the core-training exercises you choose will hit multiple planes from many positions (supine, prone, side-lying, sitting, kneeling, standing) while also stabilizing the pelvis, spine and scapulae. This functional approach prepares the body for the rigors of daily life.
130/80 = High Blood Pressure
For the first time since 2003, the American College of Cardiology and the American Heart Association have produced a substantial report updating blood pressure recommendations. People with a reading of 130/80 are now classified as having high blood pressure. This is down from 140/90.
According to the ACC, this means 46% of U.S. adults will now be categorized as having hypertension.
Those in the “hypertensive crisis” category require medication intervention and immediate hospitalization if there is organ damage, according to the report.
The Achilles Tendon
Many fitness professionals have dealt with an Achilles tendon injury, either their own or a client’s. The largest and strongest tendon in the body, the Achilles connects the lower-leg muscles and calf to the heel. “Synchronous functioning” of the tendon and calf is crucial for many activities, including standing on tiptoe, running, jumping and climbing stairs (Bhimji 2016).
Dutch surgeon Philip Verheyen named the tendon (after the Greek hero Achilles) in 1693. Previously, it was known as “tendo magnus of Hippocrates” (van Dijk 2011).
The Anatomy of Functional Training Risks
Many clients can’t seem to get enough of workouts that meld functional movements with high-intensity resistance training. Indeed, workouts using dynamic, high-intensity, full-body movements are great for strength and health—provided the body functions properly and exercisers use correct technique.
