BackgroundSarcopenia is an age-related syndrome characterized by muscle loss and reduced muscle strength, with a high incidence rate, significantly increasing the risk of falls, fractures, and death. Baduanjin, a traditional Chinese exercise, compared with traditional rehabilitation programs, has low intensity, high safety and strong interest, and is particularly suitable for patients who cannot tolerate high-intensity exercise. This study will evaluate the therapeutic effect of Baduanjin on sarcopenia.Method/designThis trial is a multicenter randomized controlled trial that will recruit 200 participants,and is randomized (1: 1) the subjects to the intervention group (Baduanjin + health education + dietary guidance, BHD) and the control group (health education + dietary guidance, HD). After enrollment, health lectures were given to all subjects. The intervention group received 12 weeks of Baduanjin intervention, with each class lasting 70 min, once a week, and provide online guidance for home workouts four times a week, while the control group maintained their original exercise habits. Health education and dietary guidance were also provided. Observation indicators will be tested before the trial begins and during the follow-up period after the intervention ends.DiscussionThis trial is a randomized controlled trial that will evaluate the intervention effect of Baduanjin on sarcopenia. According to the study of this trial, it will provide evidence for Baduanjin to improve sarcopenia.Clinical trial registrationITMCTR2024000887.

Background The altered respiratory patterns have a significant impact on our health. However, the links between respiration patterns during spontaneous breathing and physical fitness remain unknown. Therefore, we sought to examine how the respiratory pattern during spontaneous breathing interacts with physical fitness. Methods A total of 610 participants (aged 20-59 years) were enrolled; 163 men (age = 41 ± 11) and 401 women (age = 42 ± 9) were included for analysis. The parameters of the respiration pattern were respiration rate (RR) and inhalation/exhalation (I/E) ratio. The physical fitness components were body size, visuomotor reaction time, balance, flexibility, hand grip strength, back extension strength, vertical jump height, number of push-ups, number of sit-ups, and the maximum rate of oxygen consumption. The data were analyzed separately for two gender groups. Participants within each gender group were further divided into two age categories (young: 20−39 years, middle-aged: 40−59 years) for the analysis, and both correlational and comparative tests were used to solidify the results. Results Neither RRs nor the I/E ratios were substantially correlated with physical fitness in women. In addition, the I/E ratios showed no significant correlation with physical fitness in young men, while the results from correlational and comparative tests were inconsistent in middle-aged men. Consistently, men with lower RRs exhibited significantly shorter visuomotor reaction times in two age groups, and demonstrated significantly higher vertical jump heights in the middle-aged group. Conclusions In women, respiratory patterns were not correlated with physical fitness. The relationship between middle-aged men’s I/E ratios and their physical fitness warrants further investigation. Men with lower RRs may have better visual-motor coordination and/or sustained attention, while middle-aged men with lower RRs may also have greater leg explosive power and neuromuscular coordination, which should be considered for physical assessment and health improvement.

BACKGROUND:CNSLBP accounts for 85% of all LBP cases and impairs physical health, quality of life, and work productivity, posing a significant health and economic burden. Baduanjin (BDJ) exercises are traditional Chinese Qi Gong mind-body exercises that have been practiced for over 1,000 years. However, the standard BDJ protocol established by the State Sports General Administration does not stimulate core muscles, limiting the effectiveness of low back pain rehabilitation. Therefore, it is necessary to improve the original BDJ protocol. METHODS:This 24-week single-center, single-blind, parallel-group randomized control superiority trial will allocate 100 patients into two groups (control and intervention) at a 1:1 ratio. The patients in the control group will perform the standard BDJ protocol established by the State Sports General Administration. The patients in the patients in the control group will perform the standard BDJ protocol established by the State Sports General Administration. The intervention group will perform intervention. The primary outcomes will be Quebec back pain disability scale. Secondary outcomes will include visual analog scale pain scores, Surface electromyography. The assessments of the tests will be performed at four time points. Adverse events will be recorded faithfully during the study. DISCUSSION:This randomized control trial is the first to compare a standard BDJ protocol and an optimized protocol in patients with CNSLBP. This study can help guide rehabilitation programs. TRIAL REGISTRATION:Chinese Clinical Trial Registry, ChiCTR2200065618, Registered on 10 Nov. 2022. This protocol is the first version 1, which was approved on 26 Aug 2022.

The fenrou zhijian is defined as potential gap between different layers in the three-dimensional network structure formed by the twelve meridian tendons. Various pathological changes of the meridian tendons lead to the adhesion and closure of fenrou zhijian, causing abnormal mechanical conduction of the meridian tendon system, which in turn leads to painful bi syndrome of meridian tendons. As such, restarting the fenrou zhijian is the key to acupuncture treatment for painful bi syndrome of meridian tendons. Under the guidance of musculoskeletal ultrasound, the level and the angle of needle insertion of acupuncture at fenrou zhijian could be accurately controlled, the efficacy of acupuncture is improved.

跟师教育是中医住院医师规范化培训的重要组成部分.其与病房规范化培训工作的结合旨在保障规培生既能具备统一、标准的中医思想,又能形成个性化的中医思维模式.但是在实践过程中,指导老师和规培生对跟师教育的积极性不高,跟师教育流于形式.分析跟师教育政策不能被很好落实的原因,并尝试从灵活调整跟师时间、完善导师与学生之间的双向选择制度、以团队的形式完成跟师教育工作3 个方面提出建议,以期更好地落实中医住院医师规范化培训中的跟师教育工作.

BACKGROUND:Pulsed electromagnetic field (PEMF) therapy is widely used to treat myofascial pain syndrome (MPS). Damp-clearing and pain-reducing paste (DPP) comprises medical herbs and has been a traditional method of reducing myofascial pain in China for a long time, and it is usually administered with heating. However, the synergistic effect of PEMF therapy on heating-DPP in patients with MPS is unclear.AIM:To investigate the synergistic effect of PEMF therapy plus heating-DPP in lumbar MPS.METHODS:This double-blind, randomized, placebo-controlled trial was conducted on 120 patients with lumbar MPS who were randomly divided into an experimental group (EG, n = 60) and a control group (CG, n = 60). Patients in both groups were treated with heating-DPP combined with PEMF therapy; however, the electromagnetic function of the therapeutic apparatus used in the CG was disabled. Each treatment lasted for 20 min and was applied five times a week for two weeks. The short-form McGill Pain Questionnaire was applied at five time points: pretest, end of the first and second weeks of treatment, and end of the first and fourth week after completing treatment. Visual analog scale (VAS), present pain intensity index (PPI), and pain rating index (PRI; total, affective pain, and sensory pain scores) scores were then analyzed.RESULTS:Compared with the CG, the VAS, PPI and PRI scores (total, affective pain and sensory pain scores) in the EG were significantly lower after treatment and during follow-up.CONCLUSION:PEMF therapy combined with heating-DPP showed better efficacy than heating-DPP alone in reducing the overall intensity of pain and sensory and affective pain.

目的 探索基于机器学习的人工智能(Artificial Intelligence,AI)辅助诊疗系统在非特异性腰痛诊断中的应用效果.方法 使用Thought Technology Ltd生产的FlexComp Infiniti 10肌电仪采集受试者腰部左右两侧多裂肌、左右两侧最长肌和左右两侧腰髂肋肌的肌电信号,15名受试者均为确诊非特异性腰痛患者,一次采集流程包括屈曲放松运动五次,双足桥式运动、左足桥式运动、右足桥式运动和Biering Sorensen等长运动各一次.3名资深医师使用常规诊断方式对患者进行诊断,并以此为标准,对比评价AI辅助诊断系统获得的结果.结果 AI辅助诊疗系统对本文选取的15名非特异性腰痛患者的检出准确性达到100％,且对于肌肉募集能力、疲劳速度和静息速度的检测结果与医生常规诊断方式相比具有良好的一致性,平均诊断用时减少26.3 min,具有统计学意义(P<0.05).结论 初步验证表明,该AI辅助诊疗系统可对非特异性腰痛提供准确高效的辅助诊断及量化评估,为临床检测提供可靠帮助.

We developed a portable non-specific low back pain measurement system EasiLBP and evaluated its performance in collecting EMG signals:during the wearer's movement without the assistance of a doctor, the collection of EMG signals by portable devices met problems such as large noise interference, difficulty in accurately calibrating the start and end points of the action interval, and imbalanced samples for feature recognition, et al. To challenge these problems, we proposed a small group-based noise removal method, a dynamic dual-threshold automatic method for identifying the start and end points of the motion interval, and a sampling method to balance group samples, respectively. Portable device and a medical EMG acquisition equipment Thought Technology FlexComp Infiniti 10 were used to perform EMG measurements on 15 patients with non-specific low back pain and 15 normal people. Clinical experiments and statistical analysis show that the portable EMG acquisition system has significant differences in EMG signal characteristics between normal people and non-specific low back pain patients, and it has good measurement consistency and accuracy with the medical EMG acquisition equipment.