Beneficial effects of an investigational wristband containing Synsepalum dulcificum (miracle fruit) seed oil on the performance of hand and finger motor skills in healthy subjects: A randomized controlled preliminary study

Miracle fruit (Synsepalum dulcificum) seed oil (MFSO) contains phytochemicals and nutrients reported to affect musculoskeletal performance. The purpose of this study was to assess the safety and efficacy of a compression wristband containing MFSO on its ability to measurably improve the hand and finger motor skills of participants. Healthy right‐handed participants (n = 38) were randomized in this double‐blind, placebo‐controlled study of MFSO and vehicle wristbands. Subjects wore the wristband on their left hand 4–6 weeks and then only on their right hand 2–4 weeks; the contralateral untreated hand served as an additional control. Twelve hand/finger motor skills were measured using quantitative bio‐instrumentation tests, and subject self‐assessment questionnaires were conducted. With each hand, in 9/12 tests, the MFSO group showed a clinically meaningful average improvement compared with an average worsening in the vehicle group. Statistical superiority to the control treatment group was exhibited in 9/12 tests for each hand (p < .01). After discontinuing the MFSO wristband on the left hand, test values regressed toward baseline levels. Subjects favored the MFSO wristband over the control, rating it as effective in improving their motor skills. Use of the MFSO wristband may improve an individual's manual dexterity skills and ability to maintain this performance.     

神秘果混合果粉营养成分及其抗疲劳和免疫作用

目的:评价神秘果、杨桃、木瓜和南瓜等4种水果组成的混合果粉(SDMFP)的营养成分和其抗疲劳、调节免疫作用.方法:运用费林试剂热滴定法测定总糖含量,直接干燥法测定水分含量,酸水解法测定粗脂肪含量,凯氏定氮法测定粗蛋白含量,原子吸收法测定微量元素含量来分析SDMFP的营养成分.取昆明种雄性小鼠,随机分成空白对照组(生理盐水),SDMFP低、中、高剂量组(100,200,400 mg·kg-1 ·d-1),连续ig 14 d,通过测定小鼠负重游泳时间、血乳酸(BLA)、血清尿素氮(BUN)和肝糖原(LG)的含量变化探索SDMFP对小鼠抗疲劳能力影响,测定小鼠单核巨噬细胞吞噬功能和迟发型变态反应(DTH)分析SDMFP对小鼠免疫作用的影响.结果:SDMFP的营养成分为总糖42.12％±1.10％,粗脂肪1.97％±0.36％,粗蛋白0.33％±0.08％,水分11.31％ ±0.37％,K 5926.15 μg·g-1,Mg 826.75 μg·g -1,Ca 600.83 μg·g-1.与空白对照组比较,SDMFP高剂量组的小鼠负重游泳时间显著延长(P＜0.01),运动后血中BLA和BUN含量低于空白对照组,肌肉中的肝糖原含量高于空白对照组(P＜0.05),同时其巨噬细胞吞噬指数和胸腺、脾脏免疫器官质量得到明显的改善.结论:SDMFP能显著提高小鼠抗疲劳能力,并能一定程度增强细胞免疫作用.