Facultad de Educación y Ciencias Sociales, Carrera de Educación Física, Universidad Andres Bello, Concepción 4030000, Chile.
Departamento de Educación Física, Deportes y Recreación, Pedagogía en Educación Física, Facultad de Educación y Ciencias Sociales y Humanidades, Universidad de La Frontera, Temuco 4780000, Chile.
Int J Environ Res Public Health. 2021 Apr 15;18(8):4186. doi: 10.3390/ijerph18084186.
The effect of two physical training methods on older adults should be investigated in greater depth and its results shared with the community.
To determine the effects of two types of physical training on the functional features associated with the cognitive state and the effect on a physiological mediator of growth hormone (IGF-1) in older women.
Quasi-experimental study that included 12 weeks of training in two groups divided into resistance and aerobic training. The study included a population of 113 women aged 69.39 ± 6.48 years from Talcahuano, Chile. All participants were randomly assigned to either group. The MINIMENTAL test was used to examine the executive functions of cognitive state and blood concentration of IGF-1, which was also used to examine neurotrophic factors. For the assessment of physical condition, an indirect test was used for the maximum mass displaced in one repetition (1RM) by the limbs and the TM6 test to estimate maximal oxygen consumption.
Significant differences between the groups with respect to the total score obtained in the MINIMENTAL test (EG1 = 28.13 ± 2.26; EG2 = 28.57 ± 1.83 and CG = 23.47 ± 2.80; ANOVA; = 0.000) were observed. A post hoc analysis revealed no significant differences when examining executive functions individually between groups (Bonferroni; > 0.05). An increase in the neurotrophic factor IGF-1 was also recorded in the training groups (EG1 = 0.014 and EG2 = 0.005). The pre- and post-test showed large differences in magnitude in the resistance training group (ES = 0.9; 20.41% change).
Both workouts produce an overall improvement in the functions associated with cognitive status and increase blood concentrations of IGF-1 in older adults.
应更深入地研究两种体育训练方法对老年人的影响，并将研究结果与社区分享。
确定两种类型的身体训练对与认知状态相关的功能特征的影响，以及对生长激素（IGF-1）生理介质的影响。
这是一项准实验研究，包括两组 12 周的训练，分为抗阻训练和有氧运动训练。研究对象为智利塔尔卡瓦诺的 113 名年龄为 69.39 ± 6.48 岁的女性。所有参与者均随机分配至其中一组。采用 MINIMENTAL 测试评估认知状态的执行功能和 IGF-1 的血液浓度，IGF-1 也用于检测神经生长因子。身体状况评估采用间接测试评估四肢最大重复一次的质量（1RM）和 TM6 测试估计最大耗氧量。
MINIMENTAL 测试总分在组间存在显著差异（EG1=28.13±2.26；EG2=28.57±1.83；CG=23.47±2.80；ANOVA； = 0.000）。事后分析显示，组间执行功能无显著差异（Bonferroni； > 0.05）。训练组的神经生长因子 IGF-1 也有所增加（EG1=0.014；EG2=0.005）。抗阻训练组的预测试和后测试的差异较大（ES=0.9；20.41%的变化）。
两种锻炼方式均能整体改善与认知状态相关的功能，并提高老年人血液中 IGF-1 的浓度。
