Effects of Six Weeks of High-Intensity Functional Training on Physical Performance in Participants with Different Training Volumes and Frequencies

Rômulo Vasconcelos Teixeira, Gilmário Ricarte Batista, Arnaldo Luis Mortatti, Paulo Moreira Silva Dantas and Breno Guilherme de Araújo Tinôco Cabral
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Rômulo Vasconcelos Teixeira: Graduate Program on Physical Education, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte 59072970, Brazil
Gilmário Ricarte Batista: Department of Physical Education, Federal University of Paraíba, João Pessoa, Paraíba 58051900, Brazil
Arnaldo Luis Mortatti: Graduate Program on Physical Education, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte 59072970, Brazil
Paulo Moreira Silva Dantas: Graduate Program on Physical Education, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte 59072970, Brazil
Breno Guilherme de Araújo Tinôco Cabral: Graduate Program on Physical Education, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte 59072970, Brazil

IJERPH, 2020, vol. 17, issue 17, 1-13

Abstract: High-intensity functional training (HIFT) is characterized by presenting high volumes and training intensities with constantly varied exercises. The aim of this study was to analyze the internal training load and the effects of high-intensity functional training on physical performance in subjects with different training volumes and frequencies. A total of 31 volunteers involved in high-intensity functional training (14 men and 17 women) were divided according to their training volumes and frequencies (high training-volume and frequency—HTVF; ( n = 17) (nine women and eight men; age: 31.0 ± 6.3 years; height: 168.8 ± 8.1 cm, body weight: 73.6 ± 11.9 kg; BMI: 25.96 kg/m 2 ) and moderate training volume and frequency—MTVF; ( n = 14) (eight women and six men; age: 26.6 ± 4.7 years; height: 167.2 ± 8.6 cm, body weight: 75.8 ± 18.0 kg; BMI: 27.33 kg/m 2 )). The internal training load was determined using the session-rating of perceived exertion method. The monotony index (MI) and training strain (TS) were used to determine training variability during the training weeks. Countermovement vertical jump height, 20-m sprinting and handgrip strength were assessed at baseline and after six weeks of training. There was a time effect for MI ((F (5, 145) = 5.942; p = 0.0001)), TS ((F (5, 145) = 5.734; p = 0.0001)), weekly internal training load ((F (4.006, 116.87) = 4.188; p = 0.003)) and mean weekly internal training load ((F (4.006, 116.87) = 4.188; p = 0.003)). There was no increase in performance in either group for countermovement vertical jump height ((F (1,29) = 6.081; p = 0.050)), sprinting ((F (1,29) = 1.014; p = 0.322)), right handgrip strength ((F (1,29) = 2.522; p = 0.123)) or left handgrip strength ((F (1,29) = 2.550; p = 0.121)). The current findings suggest that six weeks of high-intensity functional training was not able to increase performance in either group. Therefore, different volumes and frequencies do not seem to influence the increase in physical performance of HIFT practitioners.

Keywords: perceived exertion; injury; physical training; workload; exercise (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2020
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