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.

This article reviews the use of heart rate as a way to program cardiovascular exercise.

The private sector is growing, and so is the competition. With low barriers to entry and clients cycling in and out of programs, you need a strong business strategy to stand out and build staying power. Gini Grimsley draws on her experience across commercial fitness and National Strength and Conditioning Association (NSCA) leadership to address top questions coaches are asking: Where is the smartest place to start? How do you set your rates? How do you grow a client base in a new community? Grimsley distinguishes between being certified and being qualified, noting credentials open the door while applied experience takes you further. She introduces a framework for “periodizing your paycheck,” reverse-engineering income goals into a viable revenue model. Grimsley also outlines how to integrate into established communities and balance hybrid in-person and online coaching. If you are exploring the private sector or refining your approach, gain practical strategies to find your niche and achieve career flexibility. Reach out to Gini on Instagram: @gdotgperiod, LinkedIn: @gini-grimsley-ms-cscs, or by email: trainwithgini@gmail.com | Find Eric on Instagram: @ericmcmahoncscs and LinkedIn: @ericmcmahoncscs Make sure your voice is represented in the profession. Join an NSCA Professional Development Group (PDG) to influence the resources and decisions that impact your segment of the field

A common theme in tactical fitness is to train for the demands of the position. This begs the questions: what are the actual occupational physical fitness requirements of the position of a California patrol law enforcement officer and how might these inform programming for this population?

This three-part series shows how personal trainers can create a physically literate cradle-to-grave culture for all, with LTAD as the framework.

Both unilateral and bilateral training should be used to optimally develop basketball players. This article compares single-leg and double-leg training options and provides considerations and potential implications for training basketball athletes.

While social media can serve as an efficient business tool, it can also complicate the legal rights of the entrepreneurs who use them. This article focuses on three specific—and perhaps surprising—ways in which social media can alter the employment rights of fitness professionals and the gyms they work for.

Personal trainers should be aware of the physiological changes during pregnancy for each trimester in order to provide appropriate exercise modifications and alternatives for their prenatal clients, to positively influence overall health.

This Personal Training Quarterly article discusses how myofascial techniques can reduce pain, improve mobility, and enhance quality of life for women in breast cancer recovery. Visit NSCA online to read more on recovery, health and fitness.