Impact of resistance exercise and diet on physical activity, sleep, and fatigue in obese individuals: a randomized controlled trial

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dc.contributor.authorBugday, Burak
dc.contributor.authorCelik, Alara Livanur
dc.contributor.authorSafran, Elif Esma
dc.contributor.authorSevgin, Omer
dc.date.accessioned2026-04-04T13:33:09Z
dc.date.available2026-04-04T13:33:09Z
dc.date.issued2025
dc.departmentİnönü Üniversitesi
dc.description.abstractBackground Obesity is a global health challenge linked to reduced physical activity, poor sleep, and increased fatigue. While diet is central to weight management, resistance training may offer additional benefits, but its combined impact on sleep and activity patterns in individuals with obesity remains unclear. This study aimed to compare the effects of a 12-week resistance training program combined with calorie-restricted dietary intervention (Diet + RT) versus diet alone on self-reported physical activity levels, sleep quality, fatigue, body weight, and waist circumference in individuals with obesity. Methods In this randomized controlled trial, 40 individuals with obesity were assigned to either a calorie-restricted Diet group or a Diet + RT group for 12 weeks. The exercise program targeted major muscle groups at moderate intensity, performed three times per week under professional supervision. Outcomes included the International Physical Activity Questionnaire (IPAQ), Pittsburgh Sleep Quality Index (PSQI), Fatigue Severity Scale (FSS), body weight, and waist circumference, measured at baseline, mid-intervention, and post-intervention. Data were analyzed using repeated-measures ANOVA and chi-square tests. Results Groups were comparable at baseline (all p > 0.05). Significant time x group interactions were found for body weight (F = 25.83), waist circumference (F = 27.38), sleep quality (F = 22.19), and fatigue severity (F = 53.94) (all p < 0.001), favoring the combined intervention. Self-reported physical activity levels, measured via the IPAQ, also differed significantly between groups at baseline (chi(2) = 8.44), mid-intervention (chi(2) = 16.41), and post-intervention (chi(2) = 14.40) (all p < 0.01). Conclusions Diet + RT yields superior improvements in self-reported physical activity, sleep quality, body weight, fatigue, and waist circumference compared to diet alone in individuals with obesity.
dc.identifier.doi10.1186/s12889-025-23549-8
dc.identifier.issn1471-2458
dc.identifier.issue1
dc.identifier.orcid0000-0003-2145-5939
dc.identifier.orcid0000-0001-9918-5604
dc.identifier.orcid0000-0001-9806-291X
dc.identifier.pmid40604657
dc.identifier.scopus2-s2.0-105010481671
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1186/s12889-025-23549-8
dc.identifier.urihttps://hdl.handle.net/11616/108966
dc.identifier.volume25
dc.identifier.wosWOS:001522060800007
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherBmc
dc.relation.ispartofBmc Public Health
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20250329
dc.subjectFatigue
dc.subjectObesity
dc.subjectPhysical activity
dc.subjectResistance exercise
dc.subjectSleep quality
dc.subjectWeight management
dc.titleImpact of resistance exercise and diet on physical activity, sleep, and fatigue in obese individuals: a randomized controlled trial
dc.typeArticle

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