The effect of the ketogenic diet on resistance training load management: a repeated-measures clinical trial in trained participants
Background The effect of low-carbohydrate high-fat dietary manipulation, such as the ketogenic diet (KD), on muscle strength assessment in resistance-training (RT) participants has focused on the one-repetition maximum test (1-RM). However, a pre-specified 1-RM value during an exercise training prog...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2024-12-01
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| Series: | Journal of the International Society of Sports Nutrition |
| Subjects: | |
| Online Access: | https://www.tandfonline.com/doi/10.1080/15502783.2024.2306308 |
| _version_ | 1826937090483421184 |
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| author | Salvador Vargas-Molina Manuel García-Sillero Diego A. Bonilla Jorge L. Petro Jerónimo García-Romero Javier Benítez-Porres |
| author_facet | Salvador Vargas-Molina Manuel García-Sillero Diego A. Bonilla Jorge L. Petro Jerónimo García-Romero Javier Benítez-Porres |
| author_sort | Salvador Vargas-Molina |
| collection | DOAJ |
| description | Background The effect of low-carbohydrate high-fat dietary manipulation, such as the ketogenic diet (KD), on muscle strength assessment in resistance-training (RT) participants has focused on the one-repetition maximum test (1-RM). However, a pre-specified 1-RM value during an exercise training program disregards several confounding factors (i.e. sleep, diet, and training-induced fatigue) that affect the exerciser’s “true” load and daily preparedness. We aimed to evaluate the effect of a 6-week RT program on load control-related variables in trained subjects following a KD intervention.Methods Fourteen resistance-trained individuals (3F, 11 M; 30.1 [6.2] years; 174.2 [7.6] cm; 75.7 [10.8] kg; BMI 24.8 [2.1] kg·m−2) completed this single-arm repeated-measures clinical trial. Load management variables included volume load, number of repetitions, perceived exertion (RPE), movement velocity loss, and exertion index. These primary outcomes were assessed weekly before, during, and at the end of a 6-week RT program that included traditional RT exercises (bench press, femoral lying down, lat pulldown, leg extension, and back squat).Results There was a significant difference in RPE between weeks (p = 0.015, W = 0.19) with a slight trend in decreasing RPE. We found differences in the volume load per week (p < 0.001; W = 0.73 and p < 0.001, W = 0.81, respectively), with an increase in the last weeks. In the control of the load based on movement velocity, we did not find significant differences between weeks (p = 0.591, W = 0.06), although significant differences were found in the effort index (p = 0.026, W = 0.17).Conclusions A KD diet in recreational strength participants does not appear to lead to performance losses during a RT program aimed at improving body composition. However, the lack of adherence and familiarity with the ketogenic diet must be considered specially during first weeks. |
| first_indexed | 2024-03-08T09:43:39Z |
| format | Article |
| id | doaj.art-59de3654046b4bc1b1d779bd70960400 |
| institution | Directory Open Access Journal |
| issn | 1550-2783 |
| language | English |
| last_indexed | 2025-02-17T18:33:39Z |
| publishDate | 2024-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of the International Society of Sports Nutrition |
| spelling | doaj.art-59de3654046b4bc1b1d779bd709604002024-12-12T06:10:58ZengTaylor & Francis GroupJournal of the International Society of Sports Nutrition1550-27832024-12-0121110.1080/15502783.2024.2306308The effect of the ketogenic diet on resistance training load management: a repeated-measures clinical trial in trained participantsSalvador Vargas-Molina0Manuel García-Sillero1Diego A. Bonilla2Jorge L. Petro3Jerónimo García-Romero4Javier Benítez-Porres5University of Málaga, Physical education and sport area, Faculty of Medicine, Málaga, SpainPhysical education and sport, EADE-University of Wales Trinity Saint David, Málaga, SpainDynamical Business & Science Society – DBSS International SAS, Research Division, Bogotá, ColombiaDynamical Business & Science Society – DBSS International SAS, Research Division, Bogotá, ColombiaUniversity of Málaga, Physical education and sport area, Faculty of Medicine, Málaga, SpainUniversity of Málaga, Physical education and sport area, Faculty of Medicine, Málaga, SpainBackground The effect of low-carbohydrate high-fat dietary manipulation, such as the ketogenic diet (KD), on muscle strength assessment in resistance-training (RT) participants has focused on the one-repetition maximum test (1-RM). However, a pre-specified 1-RM value during an exercise training program disregards several confounding factors (i.e. sleep, diet, and training-induced fatigue) that affect the exerciser’s “true” load and daily preparedness. We aimed to evaluate the effect of a 6-week RT program on load control-related variables in trained subjects following a KD intervention.Methods Fourteen resistance-trained individuals (3F, 11 M; 30.1 [6.2] years; 174.2 [7.6] cm; 75.7 [10.8] kg; BMI 24.8 [2.1] kg·m−2) completed this single-arm repeated-measures clinical trial. Load management variables included volume load, number of repetitions, perceived exertion (RPE), movement velocity loss, and exertion index. These primary outcomes were assessed weekly before, during, and at the end of a 6-week RT program that included traditional RT exercises (bench press, femoral lying down, lat pulldown, leg extension, and back squat).Results There was a significant difference in RPE between weeks (p = 0.015, W = 0.19) with a slight trend in decreasing RPE. We found differences in the volume load per week (p < 0.001; W = 0.73 and p < 0.001, W = 0.81, respectively), with an increase in the last weeks. In the control of the load based on movement velocity, we did not find significant differences between weeks (p = 0.591, W = 0.06), although significant differences were found in the effort index (p = 0.026, W = 0.17).Conclusions A KD diet in recreational strength participants does not appear to lead to performance losses during a RT program aimed at improving body composition. However, the lack of adherence and familiarity with the ketogenic diet must be considered specially during first weeks.https://www.tandfonline.com/doi/10.1080/15502783.2024.2306308Ketosismuscle strengthworkloadphysical exertionmovement velocity |
| spellingShingle | Salvador Vargas-Molina Manuel García-Sillero Diego A. Bonilla Jorge L. Petro Jerónimo García-Romero Javier Benítez-Porres The effect of the ketogenic diet on resistance training load management: a repeated-measures clinical trial in trained participants Journal of the International Society of Sports Nutrition Ketosis muscle strength workload physical exertion movement velocity |
| title | The effect of the ketogenic diet on resistance training load management: a repeated-measures clinical trial in trained participants |
| title_full | The effect of the ketogenic diet on resistance training load management: a repeated-measures clinical trial in trained participants |
| title_fullStr | The effect of the ketogenic diet on resistance training load management: a repeated-measures clinical trial in trained participants |
| title_full_unstemmed | The effect of the ketogenic diet on resistance training load management: a repeated-measures clinical trial in trained participants |
| title_short | The effect of the ketogenic diet on resistance training load management: a repeated-measures clinical trial in trained participants |
| title_sort | effect of the ketogenic diet on resistance training load management a repeated measures clinical trial in trained participants |
| topic | Ketosis muscle strength workload physical exertion movement velocity |
| url | https://www.tandfonline.com/doi/10.1080/15502783.2024.2306308 |
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