背景:在老年人中,血压(BP)升高和心脏自主神经调节(CAM)降低与较高的发病死亡风险相关。尽管运动是促进心血管的重要干预措施,目前尚不清楚,在这一人群中,战斗运动训练是否能像自主神经一样有益于心血管结局.这项研究比较了12周泰拳(MT)训练与功能训练(FT)对老年人CAM和血液动力学参数的影响。
方法:样本包括50名老年人(41名女性;66.0±5.3岁),随机分为FT(n=25)和MT(n=25)干预组。通过30分钟休息心率变异性测量CAM。收缩压(SBP),使用自动示波仪测量舒张压(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,每节60分钟的长度,连续12周。干预的强度是使用主观感知的运动量表和加速度计来测量的。两因素重复测量协方差分析用于分组比较,将干预组和体重作为影响因素。还计算了差异的95%置信区间(95CIdif),并使用部分η平方(η2p)测量效应大小。
结果:CAM指数在瞬间和干预组之间没有显示出显著变化。在血液动力学参数中,仅在DBP中存在矩的影响(F1,39=8.206;P=0.007;η2p=0.174,大)和组*矩之间的交互影响(F1,39=7.950;P=0.008;η2p=0.169,大)。具体来说,与FT组相比,MT组在训练后时刻的DBP较低(P=0.010;95CIdif=-13.3;-1.89).此外,MT组训练期间DBP下降(P=0.002;95CIdif=-10.3;-2.6).此外,在英国《金融时报》的12周内,训练强度也有所增加,两组之间没有差异。
结论:经过12周的MT练习后,与FT相比,老年人的DBP降低。
背景:NCT03919968注册日期:01/02/2019。
BACKGROUND: 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.
METHODS: 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 (η2p).
RESULTS: 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 (F1,39 = 8.206; P = 0.007; η2p = 0.174, large) and interaction effect between group*moment (F1,39 = 7.950; P = 0.008; η2p = 0.169, large). Specifically, the MT group at the post-training moment showed lower DBP (P = 0.010; 95%CIdif = -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%CIdif = -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.
CONCLUSIONS: After 12 weeks of MT practice there was a reduction in DBP compared to FT in older adults.
BACKGROUND: NCT03919968 Registration date: 01/02/2019.