To become an NSCA-Certified Personal Trainer®, candidates must sit for an exam that will test their knowledge of Client Consultation/Fitness Assessment, Program Planning, Exercise Techniques, and Safety/Emergency Issues. Exams are hosted in testing centers around the world. Read on to learn more about how the NSCA-CPT® exam is structured.
Nontraumatic shoulder disorders are prevalent among weight-training participants
as a result of training patterns as well as adaptive shoulder joint and muscle characteristics. This article presents a progressive approach to exercises designed to mitigate well-known joint and muscle characteristics that have been associated with shoulder disorders. Using a progressive evidence based model, practical applications are presented that will guide sports medicine and strength training professionals in their ability to provide an evidence informed upper extremity weight-training program for both patients and clients.
Colorado Springs, CO – MAJ Donald Bigham and Mark Stephenson named the 2017 TSAC-Facilitator and TSAC-Practitioners of the Year at NSCA’s TSAC Annual Training April 3-6, 2017 in Orlando, FL.
A significant number of resistance training injuries occur at the shoulder complex. However, there is a lack of research identifying predictive variables, which may increase the risk of these injuries. Certain exercises, such as those requiring
the apprehension position (glenohumeral abduction with external rotation), have been investigated and found to be associated with shoulder pain and injury. However, there are additional exercises or positions that may also be associated with increased injury risk. The position of end-range glenohumeral extension, particularly as it pertains to a dip, is a vulnerable position that may have previously been overlooked.
The squat is one of the most widely used exercises in resistance training programs. The aim of this narrative review was to analyze the effect of the squat on lower-limb muscle hypertrophy. Briefly, the available literature indicates that the squat is an effective exercise for inducing hypertrophy of the quadriceps, mainly the vastii, but
also the rectus femoris, although to a reduced magnitude. Multiple lines of evidence suggest little to no hamstring hypertrophy from the back squat. Although the gluteus maximus clearly participates mechanically in the back squat, few longitudinal studies exist on the topic. The limited evidence available on this topic suggests deeper squats may be more hypertrophic for the gluteus maximus, and that, squat depth beyond 908 of knee flexion may not provide further hypertrophy of the knee extensors. Despite the popularity of the many squat variations, there are still controversies surrounding their hypertrophic potential for lower-limb musculature. Further studies are needed to investigate the hypertrophic effects of different squat variations, as well as differences in hypertrophy because of squat depth, stance, barbell position, and different squat apparatuses/machines.
Eccentric resistance training has been shown to elicit beneficial effects on performance and injury prevention in sports because of its specific muscular and neural adaptations. Within the different methods used to generate eccentric overload, flywheel eccentric training has gained interest in recent years because of its advantages over other methods such as its portability, the ample exercise variety it allows and its accommodated resistance. Only a limited number of studies that use flywheel devices provide enough evidence to support the presence of eccentric overload. There is limited guidance on the practical implementation of flywheel eccentric training in the current literature. In this article, we provide literature to support the use of flywheel eccentric training and present practical guidelines to develop exercises that allow eccentric overload.
Exercise is an effective tool for managing and treating type II diabetes (T2DM) and may be a useful component of a diabetes management program. Both short- or long-term exercise interventions can improve physical fitness, metabolic health, and cardiovascular function in individuals with poor glycemic control. Incorporating aerobic and resistance exercise as part of a comprehensive diabetes management plan can play a vital role in the fight against this chronic metabolic disease. Progression and individualized exercise programming are critical for an effective and enjoyable exercise experience in a gym setting. With respect to safety, exercise professionals should be aware of special considerations and potential complications persons with T2DM can experience when exercising.
The physiological response to breath holding includes bradycardia and peripheral vasoconstriction, which contrasts with that of exercise which includes tachycardia and peripheral vasodilation. This raises the question as to what the physiological response is to breath holding during exercise. During low-intensity exercise, the breath holding response of bradycardia and peripheral vasoconstriction prevails over the exercise response of tachycardia and peripheral vasodilation, but nevertheless the exercise may be sustained. Due to the lack of availability of extrinsic oxygen (O 2 ) from the atmosphere during breath holding, the energy demands can be met by increased reliance on intrinsic O 2 stores (i.e., O 2 that was in the body before the breath hold) via increased O 2 extraction at the muscle compared with exercise while breathing, or increased contributions from anaerobic energy systems. During high intensity exercise of short duration, the exercise response may prevail over the breath holding response due to the increased parasympathetic withdrawal and sympathetic drive of higher intensity exercise. If breath holding during high-intensity exercise was sustained for long enough, the breath holding response may eventually overcome the exercise response, although this may be difficult due to the inverse relationship between exercise intensity and breath hold duration.