Impact of Novel Pulsed Electromagnetic Field Device on Competitive Athlete Performance

The interaction of pulsed electromagnetic fields (PEMF) with the human body may result in a variety of positive outcomes including analgesia, enhanced healing, chondroprotection, cognitive improvement and better quality of life. Previous human studies have also revealed the potential of PEMF to enhance muscle function and athletic performance. To further evaluate this potential, an open label pilot study was conducted with 19 competitive cyclists who repeatedly participated in 63 training routes. Cyclist performance was tracked before and during use of a novel and portable PEMF device that is worn as a wristband. Comparison of performance before and during use of the wristband revealed a significant association with improved muscle power. The odds ratio was 3.02 (P < 0.01) for experiencing increased muscle power while wearing the PEMF device. Among the cycling routes in which an increase was observed, the average increase in power was about 9.8%. The data suggests the novel PEMF technology may be a safe and effective therapeutic approach for improved physical performance and likely involves improved oxygen delivery due to reduced rouleaux (erythrocyte aggregation). These results warrant further investigation comprising larger studies and additional outcomes.

不同强度恒负荷运动时的血乳酸变化研究

以 1 2名男性大学生为研究对象 ,分别以 6 0 %、70 %、80 %和 90 %VO2max为恒定负荷 ,测定了运动前、运动 5min、运动 1 0min及运动后休息 5min时的血乳酸水平 .研究显示 ,血乳酸水平与运动强度、某些气体代谢参数呈明显正相关 .在给定负荷下运动 5min后 ,血乳酸水平均有明显升高 (P <0 .0 1 ) ,恒定负荷下 ,随运动时间延长 。

Perceived Improvements of Quality of Life (QoL) among Patients with Idiopathic Pulmonary Fibrosis (IPF) in Response to a 6-Week Rehabilitation Program

Idiopathic pulmonary fibrosis (IPF) is a chronic, life-limiting with an average life expectancy of 05 years following the onset of the disease, with no curative treatments. These patients need palliative care and rehabilitation is one of the methods that can be used to improve quality of life (QoL) among these patients. Yet the research conducted to assess benefits of pulmonary rehabilitation (PR) in terms of improving physical activity and QoL in IPF patients remains limited. Hence this study aims to evaluate the effect of a bespoke pulmonary rehabilitation programme, on the physical, physiological and psychological parameters and improvements of QoL among IPF patients. Eleven (11) subjects with IPF received 6 weeks of pulmonary rehabilitation. An interviewer administered quality of life questionnaire, six-minute walking test (6MWT), Incremental bicycle exercise tests were performed, and cardiac and respiratory parameters were assessed pre- and post-rehabilitation. The 6MWT was significantly increased following training (Pre 312.55 ± 89.99;Post, 380.73 ± 59.60). A significant improvement was observed in overall QoL (2.226 ± 0.026), dyspnoea (-0.455 ± 0.004) anxiety (-2.070 ± 0.038), depression (-2.217 ± 0.027) scores. No significant changes were found in the VO2 max and other cardiopulmonary parameters, while non-significant improvement was seen in SpO2 at peak exercise from 85.8 - 86.5. Bespoke pulmonary rehabilitation program is beneficial in short term improvement of the functional exercise capacity, dyspnoea and QoL among IPF patients.

高强度间歇运动及中等强度持续运动对中老年2型糖尿病患者有氧能力的影响

目的探讨高强度间歇运动(HIIT)及中等强度持续运动(MICT)对中老年2型糖尿病患者有氧能力的影响。方法采用随机数字表法将95例2型糖尿病患者分为HIIT组(35例)、MICT组(35例)及安静对照组(CON组,25例)。3组患者均维持日常生活习惯不变,HIIT组和MICT组患者分别采用功率车测功仪进行8周相应方式运动训练,每周运动4次。于训练前、训练8周后采用递增负荷运动试验检测各组患者最大摄氧量(VO2_(max))水平,同时记录运动期间各组患者不良反应情况。结果共有83例患者(87.4%)完成整个训练,HIIT组和MICT组失访率分别为12.6%和14.3%,训练计划完成率(反映患者运动依从性)分别为(91.2±5.0)%和(88.2±4.7)%;在整个研究期间2组患者均未发生严重不良事件。训练8周后HIIT组和MICT组VO2_(max)分别较训练前提高(11.5±2.3)%和(8.1±1.9)%,此时组间差异仍无统计学意义(P>0.05)。结论HIIT训练或MICT训练均适用于中老年2型糖尿病患者,且训练过程中患者耐受性及安全性良好;HIIT训练或MICT训练对中老年2型糖尿病患者有氧能力具有相似的改善效应,有助于提高患者生活质量。