Oxygen uptake (or consumption) is a measure of a person’s ability to take in oxygen and deliver it to the working tissues, and the ability of working tissues to use oxygen. During low-intensity exercise with a constant power output, oxygen uptake increases for the first few minutes until a steady state of uptake is reached.

In this session from the NSCA’s 2017 TSAC Annual Training, Rob Hartman identifies areas of focus for programming conditioning, and provides insight into how to utilize percent-based programming for conditioning both aerobic and anaerobic efforts.

This article summarizes the adaptations of cartilage via anaerobic training.

Learn practical drills, exercises, and how to properly implement conditioning protocols into a team setting. Ron McKeefery explains the scientific rational behind anaerobic and aerobic conditioning methods and how to use a systematic approach to build a successful conditioning program. In this session from the NSCA’s 2018 Coaches Conference, McKeefery also provides examples of fun, safe, and effective routines.

This article provides a sample six-week, non-linear program for improving muscular strength, power, endurance, anaerobic capacity, and aerobic capacity. However, this is not a “one-size fits all” program, and manipulation of the program variables may be warranted for some individuals.

This Kinetic Select excerpt from the Essentials of Strength Training and Conditioning, Fourth Edition describes the results from electromyography (EMG) studies on the neural adaptations to anaerobic training.

This excerpt from NSCA's Guide to Tests and Assessments briefly discusses the method behind a lactate threshold test and the pretest considerations one might take prior to this test.

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.

This article seeks to help coaches understand the demands of Brazilian jiu jitsu on athletes, as well as appropriate training strategies to improve performance potential.

Bridge the Gap Lecture: Conditioning Program Design Workshop