دورية أكاديمية
Impact of Strength Training Intensity on Brain-derived Neurotrophic Factor.
| العنوان: | Impact of Strength Training Intensity on Brain-derived Neurotrophic Factor. |
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| المؤلفون: | Borges Junior M; Neurosciense, UFMG, Belo Horizonte, Brazil., Tavares LFJ; Neurosciense, UFMG, Belo Horizonte, Brazil., Nagata GY; Medicine School, UFMG, Belo Horizonte, Brazil., Barroso LSS; Pediatrics, Federal University of Minas Gerais, Belo Horizonte, Brazil., Fernandes HB; Morphology, UFMG, Belo Horizonte, Brazil., Souza-Gomes AF; Nutrition, UFOP, Ouro Preto, Brazil., Miranda AS; Morphology, UFMG, Belo Horizonte, Brazil., Nunes-Silva A; Physical Education Department, UFOP, Ouro Preto, Brazil. |
| المصدر: | International journal of sports medicine [Int J Sports Med] 2024 Feb; Vol. 45 (2), pp. 155-161. Date of Electronic Publication: 2023 Oct 23. |
| نوع المنشور: | Randomized Controlled Trial; Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Thieme Country of Publication: Germany NLM ID: 8008349 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1439-3964 (Electronic) Linking ISSN: 01724622 NLM ISO Abbreviation: Int J Sports Med Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: Stuttgart : Thieme Original Publication: Stuttgart, New York, Thieme. |
| مواضيع طبية MeSH: | Resistance Training*/methods, Adult ; Humans ; Male ; Middle Aged ; Brain-Derived Neurotrophic Factor ; Exercise ; Lactic Acid ; Muscle Strength ; Muscle, Skeletal ; Rest |
| مستخلص: | The present study employed a randomized crossover design to investigate the effect of strength-training exercise at varying intensities on acute changes in plasma brain-derived neurotrophic factor (BDNF) levels. Fourteen trained male subjects (41.0±5.8 years old) were enrolled in the current study. The strength-training protocol included bench press, leg press, and lat pull-down exercises. Participants performed four sets with repetition failure at 60% or 80% of their one-repetition maximum (1RM), with a two-minute rest period. The order of intensity was randomized among volunteers. Blood samples were collected before, immediately after, and one hour after each exercise protocol. A time-point comparison revealed that a single session of strength training at 60% of 1RM increased lactate plasma concentrations from 1.2 to 16 mmol/L (p<0.0001). However, no significant changes were observed in the plasma BDNF concentration. Conversely, the training session at 80% of 1RM increased lactate concentrations from 1.3 to 14 mmol/L (p<0.0001) and BDNF concentrations from 461 to 1730 pg/ml (p=0.035) one hour after the session's conclusion. These findings support the hypothesis that a single strength-training session at 80% 1RM can significantly enhance circulating levels of BDNF. Competing Interests: The authors declare that they have no conflict of interest. (Thieme. All rights reserved.) |
| المشرفين على المادة: | 0 (Brain-Derived Neurotrophic Factor) 33X04XA5AT (Lactic Acid) 7171WSG8A2 (BDNF protein, human) |
| تواريخ الأحداث: | Date Created: 20231023 Date Completed: 20240209 Latest Revision: 20240209 |
| رمز التحديث: | 20240209 |
| DOI: | 10.1055/a-2197-1201 |
| PMID: | 37871642 |
| قاعدة البيانات: | MEDLINE |
| تدمد: | 1439-3964 |
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| DOI: | 10.1055/a-2197-1201 |