Functional Impact of Interval Training on Muscle Mass and Strength in Obese Adults: An Interventional Trial
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Abstract
Background: Obesity is a burgeoning global health issue, with its prevalence contributing to a spectrum of comorbid conditions, including cardiovascular disease, diabetes, and decreased life expectancy. Traditional exercise regimens have been challenged by the reduced exercise tolerance observed in obese individuals. Interval training has emerged as a promising alternative that may address these concerns by effectively improving body composition and aerobic capacity.
Objective: This study aimed to evaluate the effects of interval training on body composition and aerobic capacity in obese adults. The objective was to determine whether a structured interval training program could lead to significant improvements in these parameters, which are critical indicators of overall health status.
Methods: In a 12-week interventional trial, 30 sedentary obese adults (BMI ≥ 30) underwent interval training sessions three times per week. Body composition was assessed using skinfold thickness and bio-impedance methods, while aerobic capacity was evaluated using lactate threshold testing and the Astrand sub-maximal test. Statistical analysis was performed using SPSS version 25, with significant changes in pre- and post-study values being highlighted.
Results: Post-intervention, participants exhibited a decrease in weight from 79.3 kg to 67.5 kg and a reduction in BMI from 27.6 kg/m² to 24.01 kg/m². Fat percentage also declined from 25.2% to 22.5%. Aerobic capacity improved, with a significant increase in relative oxygen uptake from 38 ml/kg/min to 57 ml/kg/min. Additionally, the mean heart rate during submaximal testing decreased across all exercise intensities, suggesting enhanced cardiovascular efficiency.
Conclusion: Interval training is an effective intervention for improving both body composition and aerobic capacity in obese adults. The study demonstrated significant reductions in body mass and fat percentage, along with improved aerobic efficiency, as evidenced by increased oxygen uptake and reduced heart rates during exercise.
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References
Seo MH, Kim YH, Han K, Jung JH, Park YG, Lee SS, et al. Prevalence of obesity and incidence of obesity-related comorbidities in Koreans based on National Health Insurance Service health checkup data 2006–2015. J Obes Metab Syndr. 2018;27(1):46-52.
https://doi.org/10.7570/jomes.2018.27.1.46
Garrido-Miguel M, Cavero-Redondo I, Alvarez-Bueno C, Rodriguez-Artalejo F, Moreno LA, Ruiz JR, et al. Prevalence and trends of overweight and obesity in European children from 1999 to 2016: a systematic review and meta-analysis. JAMA Pediatr. 2019;173(10):e192430. https://doi.org/10.1001/jamapediatrics.2019.2430
Popa AR, Fratila O, Rus M, Aron RA, Vesa CM, Pantis C, et al. Risk factors for adiposity in the urban population and influence on the prevalence of overweight and obesity. Exp Ther Med. 2020;20(1):129-133. https://doi.org/10.3892/etm.2020.8662
Nurkkala M, Kaikkonen K, Vanhala ML, Karhunen L, Keranen AM, Korpelainen R. Lifestyle intervention has a beneficial effect on eating behavior and long-term weight loss in obese adults. Eat Behav. 2015;18(4):179-185. https://doi.org/10.1016/j.eatbeh.2015.05.009
Ko SH, Jeong J, Baeg MK, Han KD, Kim HS, Yoon JS, et al. Lipid profiles in adolescents with and without asthma: Korea National Health and nutrition examination survey data. Lipids Health Dis. 2018;17(1):1-7. https://doi.org/10.1186/s12944-018-0807-4
Dring KJ, Cooper SB, Morris JG, Sunderland C, Foulds GA, Pockley AG, et al. Multi-Stage Fitness Test Performance, V O2 Peak and Adiposity: Effect on Risk Factors for Cardio-Metabolic Disease in Adolescents. Front Physiol. 2019;10(5):629-641.
https://doi.org/10.3389/fphys.2019.00629
Caprio S, Santoro N, Weiss R. Childhood obesity and the associated rise in cardiometabolic complications. Nat Metab. 2020;2(3):223-232. https://doi.org/10.1038/s42255-020-0183-z
Kiss O, Sydo N, Vargha P, Edes E, Merkely G, Sydo T, et al. Prevalence of physiological and pathological electrocardiographic findings in Hungarian athletes. Acta Physiol Hung. 2015;102(2):228-237. https://doi.org/10.1556/036.102.2015.2.13
Sydo N, Abdelmoneim SS, Mulvagh SL, Merkely B, Gulati M, Allison TG. Relationship between exercise heart rate and age in men vs women. Mayo Clin Proc. 2014;89(12):1664-1672. https://doi.org/10.1016/j.mayocp.2014.08.018
Park A. Pathophysiology and aetiology and medical consequences of obesity. Medicine. 2019;47(3):169-174. https://doi.org/10.1016/j.mpmed.2018.12.010
James WP. Obesity: a global public health challenge. Clin Chem. 2018;64(1):24-29. https://doi.org/10.1373/clinchem.2017.273052
Kemmler W, Grimm A, Bebenek M, Kohl M, von Stengel S. Effects of combined whole-body electromyostimulation and protein supplementation on local and overall muscle/fat distribution in older men with sarcopenic obesity: the randomized controlled franconia sarcopenic obesity (FranSO) study. Calcif Tissue Int. 2018;103(3):266-77. https://doi.org/10.1007/s00223-018-0424-2
Schlabe S, Vogel M, Boesecke C, Schwarze-Zander C, Rockstroh JK, Körner C, et al. Moderate endurance training (marathon-training)–effects on immunologic and metabolic parameters in HIV-infected patients: the 42 KM cologne project. BMC Infect Dis. 2017;17(1):1-10. https://doi.org/10.1186/s12879-017-2651-y
Cordellat A, Padilla B, Grattarola P, Garcia-Lucerga C, Crehua-Gaudiza E, Nunez F, et al. Multicomponent exercise training Combined with nutritional counselling improves physical function, biochemical and anthropometric profiles in obese children: A pilot study. Nutrients. 2020;12(9):2723. https://doi.org/10.3390/nu12092723
Srivastav P, Vaishali K, Bhat VH, Broadbent S. Structured, multifactorial randomised controlled intervention to investigate physical activity levels, body composition and diet in obese and overweight adolescents. BMJ Open. 2021;11(3):e044895.
https://doi.org/10.1136/bmjopen-2020-044895
Shiri F, Monazzami A, Azizi M. Effects of Six-Week Endurance Training in Liver Enzymes, Lipid Profile, Interleukin-6 and High-Sensitivity C-Reactive Protein (hs-CRP) Responses in People with a Family History of Coronary Artery Disease. J Arch Mil Med: JAMM. 2021;9(2):e112886. https://doi.org/10.5812/jamm.112886
Minnella EM, Ferreira V, Awasthi R, Charlebois P, Stein B, Liberman AS, et al. Effect of two different pre-operative exercise training regimens before colorectal surgery on functional capacity: A randomised controlled trial. Eur J Anaesthesiol: EJA. 2020;37(11):969-978. https://doi.org/10.1097/EJA.0000000000001215
Sobol NA, Hoffmann K, Frederiksen KS, Vogel A, Vestergaard K, Brændgaard H, et al. Effect of aerobic exercise on physical performance in patients with Alzheimer's disease. Alzheimers Dement. 2016;12(12):1207-1215. https://doi.org/10.1016/j.jalz.2016.05.004
Straight CR, Toth MJ, Miller MS. Current perspectives on obesity and skeletal muscle contractile function in older adults. J Appl Physiol. 2021;130(1):10-16. https://doi.org/10.1152/japplphysiol.00739.2020
Wackerhage H. Contributions by the Cologne group to the development of lactate exercise testing and anaerobic threshold concepts in the 1970s and 1980s. J Physiol. 2021;599(5):1713-1714. https://doi.org/10.1113/JP281142
Lollgen H, Leyk D. Exercise testing in sports medicine. Dtsch Arztebl Int. 2018;115(24):409-416. https://doi.org/10.3238/arztebl.2018.0409