EFFECTS OF VARIOUS BIOMECHANICAL ERRORS ON COMPUTED JOINT KINETICS VALUES

Inverse dynamics analysis has been widely used to evaluate the joint kinetics during various human movements. Several investigators have reported that the joint kinetic computations could be considerably affected by diverse biomechanical errors. Kim et al (2007) clarified the influence of measurement errors of Center of Pressure (CoP) location of force platform on calculated three-dimensional (3D) lower limb joint moment during walking. However, it is not yet clear how biomechanical errors, such as errors in CoP, Body Segment Parameters (BSP) and Joint Center Location (JCL) data, affect the calculated joint kinetics values. The purpose of this study was to clarify the influences of the alterations of anthropometric, kinematic, and kinetic variables on the magnitude and time-series curve patterns of the 3D ankle joint moment during human running

Regulation of microRNA expression in humans following ingestion of the whole food FFC® Pairogen – A preliminary, pilot study

Background: Some natural substances may affect the expression of microRNAs (miRNAs) in humans. However, it is unclear whether this effect can be induced by the ingestion of whole foods containing these natural substances. Objective: We investigated whether ingestion of the whole food FFC® Pairogen affects the expression of miRNAs in humans. Design: This was a pilot study and part of a randomized controlled trial. Four subjects ingested the test material daily for 8 weeks (three times 180 ml bottles a day, morning, noon and evening; a total of 540 ml per day). The study did not include control subjects. Results: Several miRNAs showed differential expression. The expression of two miRNAs, hsa-let-7c and hsa-miR-92a-2-5p, changed in three of the four subjects, who had lower concentration of serum total antioxidant status. The expression of hsa-let-7c increased and that of hsa-miR-92a-2-5p decreased. Conclusions: The expression of hsa-let-7c and hsa-miR-92a-2-5p has been linked with lung cancer manifestation. The increased expression of hsa-let-7c and the decreased expression of hsa-miR-92a-2-5p suggest possible oncogene suppressive functions of these miRNAs. The ingestion of FFC® Pairogen may have a positive effect on cancer prevention

大学体育におけるニュースポーツ選択者の特性

Flying disks have many characteristics as a subject in physical education classes. For example, it is easy to control the stamina level, the number of players, and the skill level. The disks have unique flight characteristics. There is extremely little physical contact, so it is not a dangerous sport. It is easy to prepare to play, and the equipment is cheap. The purpose of this study was to clarify the characteristics of students selecting a newsport, and to examine the effectiveness of newsports as a subject in college physical education classes. We conducted a written questionnaire survey of college students. Of them, the number playing newsports was 187, volleyball 179, tennis 85, and baseball 85. The questionnaire included questions on likes and dislikes in PE, likes and dislikes in sport, past sports activity, stamina level, degree of health, the reason for selecting a sport, sports plan, class evaluation, a quantity of exercise. It became clear that the students who selected newsports had the most negative attitude and opinion of exercise and sports. The students who selected tennis showed a similar tendency, differing from the students who selected baseball or volleyball. The students who selected newsports were satisfied with the contents and the exercise quantity of newsports class. They changed their plan for later participation in sports. At the end of newsports class, the number of persons planning to participate in a sport in the future had increased