The purpose of this article is to discuss the various types of low-impact activities and their associated cardiovascular and musculoskeletal benefits.

High-Intensity Resistance and High-Impact Training and Bone Mineral Density—a Narrative Review: Part 1

With almost one million people in the United States living with multiple sclerosis, this article aims to provide personal trainers with ideas for exercises to meet the needs of these individuals.

This article explores the possible causes of low back pain, as well as three potential strategies that a personal trainer may use to work with someone dealing with low back pain.

This article addresses low back pain in first responders by examining three relevant studies.

This article will review the latest evidence regarding optimal rest intervals, and the science behind them.

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.

The ketogenic diet, while controversial and a highly polarizing subject, has demonstrated promise as an alternative dietary strategy for weight management.

Tactical professionals are often met with jobs that require long periods of sedentary time. This article provides practical strategies for how to minimize the negative impact of chronic sitting for the tactical professional.

This article from Personal Training Quarterly looks at training plans based on menstrual health to help personal trainers better support female clients. Visit NSCA online to read more on athletic performance, health, and fitness.