In this session from the 2015 Personal Trainers Conference, dietitian Dawn Weatherwax explains how the health of the digestive system affects overall health. Learn how gastrointestinal health impacts fat loss and muscle gain, the signs and symptoms of poor gut health, and foods and supplements that have been shown to have a positive impact on gut integrity.

This excerpt from Strength Training describes the hormone response to exercise and their functions within the human body.

This study published in the Journal of Strength and Conditioning Research compared the muscle activation level of the gluteus maximus, biceps femoris, and erector spinae in the hip thrust, barbell deadlift, and hex bar deadlift; each of which are compound resisted hip-extension exercises.

This infographic highlights differences between hypertrophic gains and neural adaptations for optimal athletic performance.

The expression of mechanical “muscle power” and the advanced training methodologies used to optimize it are explained by Duncan French in this session from the 2015 NSCA National Conference. By overviewing training strategies utilized with world-class athletes, this session links science with advanced training techniques designed to augment muscle power.

The primary aim of this study was to systematically compare the effectiveness of blood flow restriction training (BFR) versus traditional resistance training (TRT) to improve muscle size in healthy adults. Secondary outcomes were improvements in muscle strength and endurance. We performed a systematic searchwithmeta-analysis. Using predetermined criteria, 541 unique articles were identified through databases and bibliographies. After screening titles, abstracts, and full texts, 20 articles were included in the review. All 20 articles evaluated muscle hypertrophy, 19 evaluated strength, and 1 evaluated endurance in response to BFR and TRT. Data from 10 articles were included in the meta-analysis. In the qualitative analysis, TRT and BFR increased muscle size without differences between conditions for at least 1 hypertrophy outcome in 13 studies, and TRT or BFR differentially improved hypertrophy in 5 studies. TRT and BFR increased strength without differences between conditions for at least 1 outcome in 15 studies, and TRT or BFR differentially improved strength in 9 studies. Results from the meta-analysis indicate no differences in muscle size (ES 5 0.045, 95% CI [20.278 to 0.367]) or strength (ES520.149, 95% CI [20.439 to 0.141]) improvements with BFR versus TRT. Practitioners can implement BFR training to increase muscle size and strength as appropriate, especially for training periods of 8 weeks or longer.

Learn how diet and strength training in the absence of aerobic exercise can be used to improve body composition through simultaneous fat loss and muscle gain. In this session from the NSCA’s 2016 Personal Trainers Conference, Todd Miller demonstrates how to use body composition and metabolism measurements along with popular food tracking apps and activity monitors to design individualized diet and exercise strategies. CEUs available.

This short excerpt from Developing the Core details the importance of training the core musculature in tennis athletes.

Periodization of training is based on the principle that different loads (e.g., light, moderate, or heavy) or power requirements recruit different types and numbers of motor units. Recruitment order is important from a practical standpoint for several reasons.

Periodization of training is based on the principle that different loads (e.g., light, moderate, or heavy) or power requirements recruit different types and numbers of motor units. Recruitment order is important from a practical standpoint for several reasons.