School of Technology and Sciences, São Paulo State University (UNESP), Presidente Prudente, (SP), Brazil.
Departamento de Educação Física, Faculdade de Ciências E Tecnologia, Universidade de São Paulo (UNESP), Rua Roberto Simonsen, 305, Presidente Prudente, (SP), Brasil.
BMC Cardiovasc Disord. 2024 Aug 17;24(1):433. doi: 10.1186/s12872-024-04096-3.
The elevated blood pressure (BP) and lower cardiac autonomic modulation (CAM) are associated with higher morbidity mortality risk among older adults. Although exercise is an important intervention for cardiovascular promotion, it is unclear whether combat sports training could benefit cardiovascular outcomes as much as autonomic in this population. This study compared the effects of 12 weeks of Muay Thai (MT) training against functional training (FT) on CAM and hemodynamic parameters in older adults.
The sample consisted of 50 older adults (41 women; 66.0 ± 5.3 years old), who were equaly randomized into FT (n = 25) and MT (n = 25) intervention groups. CAM was measured by 30-min rest heart rate variability. Systolic blood pressure (SBP), diastolic blood pressure (DBP) and resting heart rate (RHR) were measured using an automatic oscillometric device. Pulse pressure (PP) and the double product (DP) were also calculated. The interventions were carried out three times a week, with 60-min length per session, during 12 consecutive weeks. The intensity of the interventions was measured using the subjective perception of exertion scale and by accelerometer. Two-factor repeated measures analysis of covariance was used for groups comparison, considering intervention group and body mass as factors. The 95% confidence interval of the difference (95%CIdif) was also calculated and the effect size was measured using partial eta squared (η).
CAM indices did not show significant changes across moments and intervention groups. In hemodynamic parameters, only in DBP was there an effect of the moment (F = 8.206; P = 0.007; η = 0.174, large) and interaction effect between group*moment (F = 7.950; P = 0.008; η = 0.169, large). Specifically, the MT group at the post-training moment showed lower DBP (P = 0.010; 95%CI = -13.3; -1.89) in relation to the FT group. Furthermore, the MT group showed a decrease in DBP during training (P = 0.002; 95%CI = -10.3; -2.6). Also, an increase in training intensity was also found over the 12 weeks in FT, with no difference between the groups.
After 12 weeks of MT practice there was a reduction in DBP compared to FT in older adults.
NCT03919968 Registration date: 01/02/2019.
高血压（BP）和较低的心脏自主调节（CAM）与老年人更高的发病率和死亡率风险相关。尽管运动是促进心血管健康的重要干预措施，但目前尚不清楚在老年人中，搏击运动训练对心血管的益处是否与自主神经一样多。本研究比较了 12 周泰拳（MT）训练和功能性训练（FT）对老年人 CAM 和血液动力学参数的影响。
样本由 50 名老年人（41 名女性；66.0±5.3 岁）组成，他们被等分为 FT（n=25）和 MT（n=25）干预组。通过 30 分钟的静息心率变异性测量 CAM。使用自动振荡式装置测量收缩压（SBP）、舒张压（DBP）和静息心率（RHR）。还计算了脉压（PP）和双乘积（DP）。干预措施每周进行三次，每次 60 分钟，持续 12 周。干预的强度通过主观用力感觉量表和加速度计来测量。使用两因素重复测量方差分析比较组间差异，考虑干预组和体重作为因素。还计算了差异的 95%置信区间（95%CI），并使用偏 eta 平方（η）测量效应大小。
CAM 指数在各时间点和干预组之间没有显示出显著变化。在血液动力学参数方面，只有 DBP 显示出时间（F=8.206；P=0.007；η=0.174，大）和组*时间交互效应（F=7.950；P=0.008；η=0.169，大）的影响。具体来说，与 FT 组相比，MT 组在训练后时刻的 DBP 较低（P=0.010；95%CI=-13.3；-1.89）。此外，MT 组在训练过程中 DBP 下降（P=0.002；95%CI=-10.3；-2.6）。此外，在 12 周的 FT 训练中，训练强度也有所增加，两组之间没有差异。
与 FT 相比，12 周的 MT 练习后，老年人的 DBP 降低。
NCT03919968 注册日期：2019 年 2 月 1 日。
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