{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,13]],"date-time":"2026-04-13T22:31:40Z","timestamp":1776119500070,"version":"3.50.1"},"reference-count":100,"publisher":"Public Library of Science (PLoS)","issue":"12","license":[{"start":{"date-parts":[[2024,12,30]],"date-time":"2024-12-30T00:00:00Z","timestamp":1735516800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS ONE"],"abstract":"<jats:p>Fitness coaches seem to play an essential role in the field of exercise as they help prevent sedentary lifestyles and promote overall health, quality of life, and well-being. This study aimed to explore the effects of fitness coaches\u2019 behavior perceptions, intrinsic motivation, and enjoyment of exercisers on their long-term fitness and health, as well as their commitment to exercise. A total of 202 individuals participated in the study that was developed over three data gathering occasions (baseline, three months and six months). To this end, three psychometric scales were used as part of a multi-section survey: FCBS-Fit (perception of the fitness coach\u2019s behavior), IMIp (intrinsic motivation of exercisers), and PACES (enjoyment in exercise), along with the assessment of four health\/fitness variables: anthropometry (i.e., waist-hip ratio), strength (i.e., handgrip strength), flexibility (i.e., sit-and-reach), and cardiorespiratory fitness (i.e., VO<jats:sub>2<\/jats:sub>m\u00e1x.). Overall, the results suggested that the perception of the fitness coach\u2019s behavior, the exerciser\u2019s intrinsic motivation, and enjoyment were predictors of the health\/fitness outcomes, and seemed to be related to the exercise commitment at the end of three and six months. The novelty of this study is the examination of psychological and physiological factors in an integrated and longitudinal manner within the scope of exercise in fitness and health clubs. Therefore, these findings shed light on fitness coaches as an important element in the propagation and maintenance of exercise habits, accomplishment of tangible outcomes by exercisers, health promotion and the fitness sector\u2019s growth.<\/jats:p>","DOI":"10.1371\/journal.pone.0310931","type":"journal-article","created":{"date-parts":[[2024,12,30]],"date-time":"2024-12-30T18:42:43Z","timestamp":1735584163000},"page":"e0310931","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":2,"title":["Impact of fitness coach behavior on exercise motivation, commitment, and enjoyment: A longitudinal study"],"prefix":"10.1371","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1078-3355","authenticated-orcid":true,"given":"Ricardo","family":"Braga-Pereira","sequence":"first","affiliation":[]},{"given":"Guilherme Eust\u00e1quio","family":"Furtado","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1990-0589","authenticated-orcid":true,"given":"Francisco","family":"Campos","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6522-7594","authenticated-orcid":true,"given":"Ant\u00f3nio Rodrigues","family":"Sampaio","sequence":"additional","affiliation":[]},{"given":"Pedro","family":"Teques","sequence":"additional","affiliation":[]}],"member":"340","published-online":{"date-parts":[[2024,12,30]]},"reference":[{"issue":"3","key":"pone.0310931.ref001","doi-asserted-by":"crossref","first-page":"169","DOI":"10.1136\/bjsports-2013-093372","article-title":"Physical inactivity remains the greatest public health problem of the 21st century: evidence, improved methods and solutions using the \u20187 investments that work\u2019 as a framework.","volume":"48","author":"SG Trost","year":"2014","journal-title":"Br J Sports Med"},{"issue":"9838","key":"pone.0310931.ref002","doi-asserted-by":"crossref","first-page":"247","DOI":"10.1016\/S0140-6736(12)60646-1","article-title":"Global physical activity levels: surveillance progress, pitfalls, and prospects","volume":"380","author":"PC Hallal","year":"2012","journal-title":"Lancet"},{"issue":"9838","key":"pone.0310931.ref003","doi-asserted-by":"crossref","first-page":"294","DOI":"10.1016\/S0140-6736(12)60898-8","article-title":"The pandemic of physical inactivity: global action for public health","volume":"380","author":"HW Kohl","year":"2012","journal-title":"Lancet"},{"issue":"1","key":"pone.0310931.ref004","doi-asserted-by":"crossref","first-page":"99","DOI":"10.1037\/a0021974","article-title":"Systematic review of maintenance of behavior change following physical activity and dietary interventions.","volume":"30","author":"B Fjeldsoe","year":"2011","journal-title":"Health Psychol"},{"issue":"2","key":"pone.0310931.ref005","doi-asserted-by":"crossref","first-page":"173","DOI":"10.1177\/1359105309342283","article-title":"Physical activity in middle-aged and young-old adults: the roles of self-efficacy, barriers, outcome expectancies, self-regulatory behaviors and social support.","volume":"15","author":"BJ Ayotte","year":"2010","journal-title":"J Health Psychol"},{"key":"pone.0310931.ref006","volume-title":"Fitness Professional\u2019s Handbook. 7th ed.","author":"ET Howley","year":"2016"},{"issue":"1","key":"pone.0310931.ref007","doi-asserted-by":"crossref","first-page":"3","DOI":"10.1136\/bjsm.2008.054825","article-title":"Exercise is medicine and physicians need to prescribe it!","volume":"43","author":"RE Sallis","year":"2009","journal-title":"Br J Sports Med"},{"issue":"4","key":"pone.0310931.ref008","doi-asserted-by":"crossref","first-page":"e027987","DOI":"10.1136\/bmjopen-2018-027987","article-title":"Are changes in physical fitness, body composition and weight associated with exercise attendance and dropout among fitness club members? 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