PFTL NEWS March 2021

WEBINAR – WHY YOU SHOULD BE HIKING

WEDNESDAY, MARCH 10 AT 7:30PM

PFTL is pleased to offer a 60-minute webinar where you will hear from Mountaineer Martin Pazzani who discovered that walking up hills – hiking – might just be the Fountain of Youth and the pathway to a much longer, happier and healthier life.

Trainers Debora Morris and Susan Thomson will follow his presentation with tips on how to prepare for extended walks/hikes and how to overcome the most common reasons for not hiking.

There is no charge for this webinar. Registration is required.  Click to register below.

https://us02web.zoom.us/webinar/register/WN_eY5SaJILTiCl3X_ExIakQg

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We are offering TWO FREE VIRTUAL SESSIONS FOR FORMER IN-HOME OR STUDIO CLIENTS. Contact Debora at (847) 722 -2115, if you are interested.

PROMOTIONAL OFFER FOR NEW CLIENTS

  • 2-hour Comprehensive Fitness Assessment at no cost ($80 value).
  • 20% discount on first two IN-HOME OR STUDIO  training sessions (Regular $90 studio, $100 in-home)

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OUCH! WHAT CAUSES MUSCLES TO CRAMP (Excerpts from article by Rogelio Realzola, M.S. and Len Kravitz, Ph.D.)

Muscles cramps are abrupt, harsh, involuntary muscle contractions that can cause mild-to-severe agony and immobility (Minetto et al.,2013). Minetto and colleagues add that muscle cramps usually self-extinguish within seconds to minutes but may be accompanied with a knotting of the affected muscle. They occur in healthy people during exercise, sleep, pregnancy or after vigorous physical exertion. There is no gender difference with skeletal muscle cramps. However, they appear to occur more frequently with endurance athletes and in the elderly (Giuriato et al., 2018). According to Giuriato, the occurrence rate of muscle cramping is 50-60% in a healthy population. During endurance exercise, muscle cramps are correlated with long duration workouts, as well as harder workout intensities. While they are widely discussed by fitness pros, until recently, little has been known about the actual physiology of cramps.

Types of Muscle Cramps – Muscle cramps are multifactorial that Giuriato and colleagues (2018) have categorized into three groups: (1) nocturnal cramps, which occur during sleep without any clear causal mechanism; (2) pathological cramps, which are a consequence of having diabetes, nerve dysfunctions, or metabolic disorders in the body; (3) exercise-associated muscle cramps (EAMC), the muscle cramps that occur while exercising or post-exercise.

What are the Risk Factors Associated with Muscle Cramps? – With marathon runners, Schwellnus et al. (1997) summarize research that shows certain risk factors are more associated with the occurrence of a muscle cramp. These risks include a longer history of running (i.e., running years), older chronological age of the individual, higher body mass index, shorter daily stretching time, irregular stretching habits and a positive family history of cramping. With marathon runners, Schwellnus summarize that the two most important observations from the research are that EAMC are associated with longer running conditions (which lead to muscle fatigue), and poor stretching habits.

Early Theories of the Causes of EAMC – These include electrolyte imbalance, dehydration, and increase in body temperature due to hot, humid environments.  Studies have shown that there is no direct correlation between these causes and exercise-associated muscle cramps.

Current Theory on the Cause of Muscle Cramps – The newest concept of muscle cramps is a neuromuscular theory (Giuriato et al., 2018). Currently, this theory has evolved to have two different origins: a central (i.e., spinal column) and a peripheral (i.e., neuromuscular junction) origin.

Cautions to Protect Against Cramps from Occurring – It is clear that intense, extremely long duration workouts (for the level of fitness of the exerciser) leads to more skeletal muscle cramps. As well, lack of training and/or training in a hot, humid environment predisposes a person to muscle fatigue and possible muscle cramping. Research also shows there is a greater incidence of muscle cramps with the elderly, a phenomenon which needs more research, but important for fitness pros to be aware. Although the research shows that poor or inadequate stretching may predispose a person to muscle cramps, we do not have an evidence-based recommendation for what type of stretches and how much stretching should be done to reduce cramps.

Take Home Messages and Muscle Cramp Reflections – From a health perspective, the results of this new research show that we no longer have the evidence to state that a cramp is due to electrolyte imbalances or water depletion in muscle. Further, recommending particular supplements in the hopes that it impedes cramps also appears not to be rooted in any current literature. Performing too intense and/or long-duration workouts when not properly prepared to do is, should be avoided. Proper stretching exercises, particularly of the limbs is also essentiaL