ReviewSports (Basel, Switzerland)2018
High-Intensity Functional Training (HIFT): Definition and Research Implications for Improved Fitness.
Review in Sports (Basel, Switzerland), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 6 registered trials, which are not on this map. Cited by 191 papers, 19 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
HIFT for Obesity Prevention, Fitness and Health Promotion in Military Personnel
High Intensity Functional Training in the Rehabilitation of Cancer Survivors: A Protocol for a Pragmatic Clinical Trial
Functional Assessment and Sleep Apnea in Obese Children and Adolescents After a Telerehabilitation Program
Effect of High-intensity Interval Training on Low-grade Systemic Inflammation in Obese Young Adults
High Intensity Functional Training for Individuals With Neurologic Diagnoses and Their Care Partners: A 2-Year Longitudinal Study
The Effect of High-Intensity Functional Exercise Programs on Menopausal Symptoms, Physical Performance, and Dual-Task Performance in Postmenopausal Women
Who cites it
191 citing papers in PubMed, 19 syntheses or guidelines pooled it.
- Pooled it
- Psychological variables of crossFit participants: an up-to-date systematic review.Frontiers in sports and active living · 2026Pooled it
- Effects of high-intensity functional training on physical fitness in healthy individuals: a systematic review with meta-analysis.BMC public health · 2025Pooled it
- Effects of high-intensity training on jumping performance among athletes: a systematic review with meta-analysis.Scientific reports · 2025Pooled it
- Solving the High-Intensity Multimodal Training Prescription Puzzle: A Systematic Mapping Review.Sports medicine - open · 2024Pooled it
- Pooled it
- Risk Factors for Musculoskeletal Injury in CrossFit: A Systematic Review.International journal of sports medicine · 2023Pooled it
- Effect of core training on athletic and skill performance of basketball players: A systematic review.PloS one · 2023Pooled it
- Pooled it
- Physiological effects of regular CrossFitFrontiers in physiology · 2023Pooled it
- Effectiveness of Whole-Body High-Intensity Interval Training on Health-Related Fitness: A Systematic Review and Meta-Analysis.International journal of environmental research and public health · 2022Pooled it
- The Effects of High-Intensity Multimodal Training in Apparently Healthy Populations: A Systematic Review.Sports medicine - open · 2022Pooled it
- Effects of functional training on sprinting, jumping, and functional movement in athletes: A systematic review.Frontiers in physiology · 2022Pooled it
- The Effects of High-Intensity Interval Training (HIIT) on Fall Risk Factors in Healthy Older Adults: A Systematic Review.International journal of environmental research and public health · 2021Pooled it
- Impact of different training modalities on anthropometric outcomes in patients with obesity: A systematic review and network meta-analysis.Obesity reviews : an official journal of the International Association for the Study of Obesity · 2021Pooled it
- Effect of Functional Training on Physical Fitness Among Athletes: A Systematic Review.Frontiers in physiology · 2021Pooled it
- Chronic effects of high-intensity functional training on motor function: a systematic review with multilevel meta-analysis.Scientific reports · 2020Pooled it
- CrossFit® Training Strategies from the Perspective of Concurrent Training: A Systematic Review.Journal of sports science & medicine · 2020Pooled it
- Characterization of Hormonal, Metabolic, and Inflammatory Responses in CrossFit® Training: A Systematic Review.Frontiers in physiology · 2020Pooled it
- Within-Day Timing of Concurrent Training Affects Inflammation and Body Composition in Young Adults With Obesity.Obesity (Silver Spring, Md.) · 2026Trial
131 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
Abstract
High-intensity functional training (HIFT) is an exercise modality that emphasizes functional, multi-joint movements that can be modified to any fitness level and elicit greater muscle recruitment than more traditional exercise. As a relatively new training modality, HIFT is often compared to high-intensity interval training (HIIT), yet the two are distinct. HIIT exercise is characterized by relatively short bursts of repeated vigorous activity, interspersed by periods of rest or low-intensity exercise for recovery, while HIFT utilizes constantly varied functional exercises and various activity durations that may or may not incorporate rest. Over the last decade, studies evaluating the effectiveness of HIIT programs have documented improvements in metabolic and cardiorespiratory adaptations; however, less is known about the effects of HIFT. The purpose of this manuscript is to provide a working definition of HIFT and review the available literature regarding its use to improve metabolic and cardiorespiratory adaptations in strength and conditioning programs among various populations. Additionally, we aim to create a definition that is used in future publications to evaluate more effectively the future impact of this type of training on health and fitness outcomes.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.