DE Oliveira Silas N, Zapello Grazieli M B, Knihs Débora A, Fischer Gabriela, Moro Antônio R P
Department of Physical Education, Federal University of Santa Catarina, Florianópolis, SC, BRAZIL.
Int J Exerc Sci. 2023 Aug 1;16(7):1142-1153. doi: 10.70252/QKEB4935. eCollection 2023.
Functional Fitness Training (FFT) is a very popular training method in recent years. However, the combination of aerobic and strength components of this training method raised the hypothesis of impaired strength and muscle structure when compared to Strength Training (ST). Thus, the study aimed to compare muscle architecture and strength between FFT and ST, and the relationship between muscle architecture and maximum strength performance. Males (28.46 ± 6.03 years), nonathletes, and practitioners for two years in FFT (n = 8) and ST (n = 8), in addition to males classified as physically active (n = 8) were recruited. Muscle architecture of the rectus femoris (RF) and vastus lateralis (VL) of the thigh were evaluated with the aid of B-mode ultrasound and maximum strength in the back squat through the one-repetition maximum test. For muscle architecture, the fascicle length (FL), pennation angle (PAn), and muscle thickness (MT) were evaluated, in addition to the cross-sectional area (CSA). The FL, PAn, MT, and CSA of the RF and VL did not differ between the FFT and ST groups. Similarly, maximum strength did not differ between the FFT (152 ± 23.68 kg) and ST (151.88 ± 14.77 kg) groups. A significant relationship was observed between the PAn of the RF and the maximum strength (r =0.862; p =0.006) of FFT practitioners. The muscle architecture, CSA, and muscle strength do not differ between FFT and ST male practitioners, and PAn of the RF correlates with the maximum force for FFT practitioners.
功能性体能训练（FFT）是近年来一种非常流行的训练方法。然而，与力量训练（ST）相比，这种训练方法中有氧运动和力量训练成分的结合引发了力量和肌肉结构受损的假设。因此，本研究旨在比较FFT和ST之间的肌肉结构和力量，以及肌肉结构与最大力量表现之间的关系。招募了男性（28.46±6.03岁）、非运动员、FFT组（n = 8）和ST组（n = 8）中从事该训练两年的练习者，此外还招募了被归类为身体活跃的男性（n = 8）。借助B超评估大腿股直肌（RF）和股外侧肌（VL）的肌肉结构，并通过一次重复最大测试评估深蹲时的最大力量。对于肌肉结构，除了横截面积（CSA）外，还评估了肌束长度（FL）、羽状角（PAn）和肌肉厚度（MT）。RF和VL的FL、PAn、MT和CSA在FFT组和ST组之间没有差异。同样，FFT组（152±23.68 kg）和ST组（151.88±14.77 kg）之间的最大力量也没有差异。在FFT练习者中，观察到RF的PAn与最大力量之间存在显著关系（r = 0.862；p = 0.006）。FFT和ST男性练习者之间的肌肉结构、CSA和肌肉力量没有差异，并且RF的PAn与FFT练习者的最大力量相关。
