Drigny Joffrey, Pamart Nicolas, Azambourg Hélène, Remilly Marion, Reboursière Emmanuel, Gauthier Antoine, Hodzic Amir
Department of Sports Medicine and Physical Medicine and Rehabilitation, CHU de Caen Normandie, Normandie Univ, UFR Santé, GIP Cyceron, INSERM Comete, 14000 Caen, France.
Inter-University Laboratory of Human Movement Science (LIBM EA7424), University of Lyon, University Jean Monnet, 42100 Saint-Etienne, France.
J Funct Morphol Kinesiol. 2024 Nov 5;9(4):222. doi: 10.3390/jfmk9040222.
: This study aimed to assess the impact of a 20-week resistance training program on force-velocity (F-V) parameters using an isokinetic two-point method and comparing one-repetition maximum (1-RM) methods in novice lifters. : Previously untrained individuals completed a supervised, three-session weekly resistance training program involving concentric, eccentric, and isometric phases, repeated every 2 to 4 weeks. Isokinetic dynamometry measured the strength of elbow flexors/extensors at 60°/s and 150°/s, and knee flexors/extensors at 60°/s and 240°/s at Baseline, 3 months, and 5 months. F-V parameters, including maximal theoretical force (F0) and the F-V slope, were calculated. Participants also performed 1-RM tests for the upper and lower limbs. Repeated measures ANOVA with effect size (η > 0.14 as large) was used to analyze changes in F-V parameters and repeated measures correlation was used to test their association with 1-RM outcomes. : Eighteen male participants (22.0 ± 3.4 years) were analyzed. F0 significantly increased for all muscle groups (η = 0.423 to 0.883) except elbow flexors. F-V slope significantly decreased (steeper) for knee extensors and flexors (η = 0.348 to 0.695). Knee extensors showed greater F0 gains and steeper F-V slopes than flexors (η = 0.398 to 0.686). F0 gains were associated with 1-RM changes (r = 0.38 to 0.83), while F-V slope changes correlated only with lower limb 1-RM (r = -0.37 to -0.68). : The 20-week resistance training program significantly increased F0 and shifted the F-V profile towards a more "force-oriented" state in knee muscles. These changes correlated with improved 1-RM performance. Future studies should include longer follow-ups and control groups.
本研究旨在使用等速两点法评估为期20周的抗阻训练计划对新手举重运动员力-速度（F-V）参数的影响，并比较一次重复最大值（1-RM）方法。以前未经训练的个体完成了一项由教练指导的、每周三次的抗阻训练计划，该计划包括向心、离心和等长阶段，每2至4周重复一次。等速测力法在基线、3个月和5个月时测量了60°/秒和150°/秒时肘屈肌/伸肌以及60°/秒和240°/秒时膝屈肌/伸肌的力量。计算了F-V参数，包括最大理论力（F0）和F-V斜率。参与者还进行了上肢和下肢的1-RM测试。使用具有效应量（η>0.14为大效应量）的重复测量方差分析来分析F-V参数的变化，并使用重复测量相关性来测试它们与1-RM结果的关联。分析了18名男性参与者（22.0±3.4岁）。除肘屈肌外，所有肌肉群的F0均显著增加（η=0.423至0.883）。膝伸肌和屈肌的F-V斜率显著降低（更陡峭）（η=0.348至0.695）。膝伸肌的F0增加幅度和F-V斜率比屈肌更大（η=0.398至0.686）。F0的增加与1-RM的变化相关（r=0.38至0.83），而F-V斜率的变化仅与下肢1-RM相关（r=-0.37至-0.68）。为期20周的抗阻训练计划显著增加了F0，并使膝关节肌肉的F-V曲线向更“以力量为导向”的状态转变。这些变化与1-RM成绩的提高相关。未来的研究应包括更长时间的随访和对照组。
