PT 2022

The innovative technology found in portable BFR training systems can help tactical personnel achieve greater strength and hypertrophic gains, as well as optimize training programs and overall performance.

This book excerpt provides examples of quickness drills that may improve the ability to identify a specific stimulus and to respond quickly and appropriately.

This is the second part of a two-part series that investigates the effects of dietary carbohydrate availability on exercise performance and how specifically timed restriction of carbohydrates may also paradoxically enhance exercise performance in the medium and long term.

The loss of required thoracic spine ranges of motion for sport movements can be problematic for the elite athlete, as well as the weekend warrior. The purpose of this article is to explore biomechanical causes for thoracic mobility restriction as well as provide easily applicable techniques to restore mobility.

Mark Stephenson explains the systems of stress response for tactical personnel and the cognitive influence on decision-making and reaction time.

Scenarios that provide a stimulus relevant to the sporting environment may help athletes develop better anticipation skills through the refinement of search strategies, response speed and accuracy, pattern recognition, and decision-making abilities.

This excerpt from Developing Speed looks at how a fundamental understanding of the biomechanical principles that affect speed can assist coaches and athletes in developing running speed.

Hybrid fitness competitions such as HYROX have rapidly gained popularity, blending aerobic endurance running with a variety of high-intensity resistance and ergometer-based stations in a globally standardized format. The sport’s unique structure, comprising eight 1-kilometer runs interspersed with diverse workload stations, presents distinct physiologic, biomechanical, and technical demands. This review synthesizes existing research on hybrid fitness events to identify the key determinants of HYROX performance, emphasizing aerobic capacity, anaerobic power, local muscular endurance, and maximal strength. The aerobic system is foundational, enabling recovery between high-intensity efforts and sustaining performance during the event’s prolonged duration. Conversely, anaerobic capacity is critical for executing the high-intensity efforts demanded by each fitness station. Local muscular endurance supports repeated submaximal contractions, while strength and power underpin performance in movements such as sled pushes and running economy. Technical proficiency and injury prevention strategies are also discussed, alongside targeted programming recommendations, including high-intensity interval training, circuit training, and blood flow restriction methods. Despite its growing popularity, limited sport-specific research exists, necessitating further investigation to refine training and performance strategies. This review provides a comprehensive framework for athletes and coaches to optimize preparation and performance in HYROX, contributing to the broader understanding of hybrid fitness competitions.

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.