Xiong Weizhi, Liu Xuefeng
School of Physical Education, Chengdu Sport University, Chengdu, China.
Physical Rehabilitation Center, Sichuan Sports College, Chengdu, China.
Front Physiol. 2023 Aug 29;14:1231088. doi: 10.3389/fphys.2023.1231088. eCollection 2023.
This study aimed to investigate the effect of whole-body vibration training (WBVT) combined with KAATSU training (KT) on lower limb joint muscle strength and to provide a reference for improving muscle strength in older women. A total of 86 healthy older people was randomly divided into WBVT group (WG, = 21), KT group (KG, = 22), combined intervention group (CIG, = 20) and control group (CG, = 23). WG and CIG subjects underwent WBVT, and KG and CIG subjects underwent 150 mmHg and lower limb joint and local compression intervention for 16 weeks (three times per week, about 15 min/time). The peak torque (PT) and endurance ratio (ER) of joint flexion or extension were tested for all subjects. 1) Results at 16 weeks were compared with the baseline data. The knee extension and ankle flexion PT (60°/s) in CIG increased by 14.3% and 15.3%, respectively ( < 0.05). The knee extension PT (180°/s) increased by 16.9, 18.4% and 33.3% in WG, KG and CIG ( < 0.05), respectively, and the ankle extension PT (180°/s) in CIG increased by 31.1% ( < 0.05). The hip, knee extension and ankle flexion ER increased by 10.0, 10.9% and 5.7% in CIG ( < 0.05), respectively. 2) Results were compared among groups at 16 weeks. The relative changes were significantly lower in WG, KG and CG compared to CIG in the knee extension and ankle flexion PT (60°/s) ( < 0.05). The relative changes were significantly greater in WG, KG and CIG compared to CG in the knee extension PT (180°/s) ( < 0.05). The relative changes were significantly lower in WG, KG and CG compared to CIG in the ankle extension PT (180°/s) ( < 0.05). The relative changes were significantly lower in WG, KG and CG compared to CIG in the hip extension ER ( < 0.05). The relative changes were significantly lower in CG compared to CIG in the knee extension ER ( < 0.05). Sixteen-week WBVT and KT increased the knee extensor strength in older women. Compared with a single intervention, the combined intervention had better improvements in the knee extensor and ankle flexor and extensor strength and hip extension muscle endurance. Appears to be some additional benefit from combined intervention above those derived from single-interventions.
本研究旨在探讨全身振动训练（WBVT）联合加特苏训练（KT）对老年女性下肢关节肌肉力量的影响，为提高老年女性肌肉力量提供参考。将86名健康老年人随机分为全身振动训练组（WG，n = 21）、加特苏训练组（KG，n = 22）、联合干预组（CIG，n = 20）和对照组（CG，n = 23）。WG组和CIG组受试者接受全身振动训练，KG组和CIG组受试者接受150 mmHg的下肢关节及局部加压干预，为期16周（每周3次，每次约15分钟）。对所有受试者进行关节屈伸的峰值扭矩（PT）和耐力比（ER）测试。1）将16周时的结果与基线数据进行比较。CIG组的膝关节伸展和踝关节屈曲PT（60°/s）分别增加了14.3%和15.3%（P < 0.05）。WG组、KG组和CIG组的膝关节伸展PT（180°/s）分别增加了16.9%、18.4%和33.3%（P < 0.05），CIG组的踝关节伸展PT（180°/s）增加了31.1%（P < 0.05）。CIG组的髋关节、膝关节伸展和踝关节屈曲ER分别增加了10.0%、10.9%和5.7%（P < 0.05）。2）比较16周时各组间的结果。WG组、KG组和CG组在膝关节伸展和踝关节屈曲PT（60°/s）方面的相对变化显著低于CIG组（P < 0.05）。WG组、KG组和CIG组在膝关节伸展PT（180°/s）方面的相对变化显著大于CG组（P < 0.05）。WG组、KG组和CG组在踝关节伸展PT（180°/s）方面的相对变化显著低于CIG组（P < 0.05）。WG组、KG组和CG组在髋关节伸展ER方面的相对变化显著低于CIG组（P < 0.05）。CG组在膝关节伸展ER方面的相对变化显著低于CIG组（P < 0.05）。16周的全身振动训练和加特苏训练增加了老年女性的膝关节伸肌力量。与单一干预相比，联合干预在膝关节伸肌、踝关节屈肌和伸肌力量以及髋关节伸展肌肉耐力方面有更好的改善。联合干预似乎比单一干预有一些额外的益处。
