DIFFERENCES IN TRUNK ANGLES THROUGH DIFFERENT SHOOTING DIRECTIONS IN WATER POLO PENALTY SHOOTING

The purpose of this study was to investigate three-dimensionally the shooter’s trunk motion through 4 different shooting directions. Ten Korean national level water polo players who are right-handed were participated in this study (age, 21.60±3.20 years; weight, 86.30±8.86 kg; height, 1.83±0.05 m). To analyze the shooter’s trunk motion among different target, a three-dimensional motion analysis with six video cameras was performed.The analysis events were coking when the trunk was externally rotated maximally and release moment. A one-way ANOVA with repeated measure was performed as main statistical tests and Bonferroni correction was used as a post-hoc test. The results showed that there was statistically significant difference in trunk angle between left and right shooting directions. Especially, the posterior leaning and external rotation angles of trunk in cocking moment were bigger in left shooting direction compared to right one (p\u3c.05). These results suggest that goalkeepers predict shooting direction more precisely by identifying the trunk posture at coking moment

KINEMATIC ANALYSIS OF DIVING BACK PIKE SOMERSAULT IN PLATFORM ACCORDING TO PLAYERS’ SKILL LEVEL

The purpose of this study was to investigate the kinematic difference in Back Pike somersault in platform diving according to players‘ skill level and to assist them to improve performances. Ten Korean diving athletes participated in this study and they were divided into skilled group (n=5) and less-skilled group (n=5) and t-test was performed to find the difference at the moment of take-off between groups. The results showed that the hip extension angle was greater and the extension velocity of knee and hip joints were faster in skilled group compared to less-skilled group. It is recommended, therefore that the flexibility training of hip joint and muscle strength training to enhance extension velocity of knee and hip joints are needed

Can the rigid stylet from an intravenous catheter be an alternative vascular access device for intraosseous catheterisation?

Abstract Background It may be challenging for practitioners to secure vascular access in animals, especially in a state of shock. Aim This study aimed to evaluate the clinical relevance of commercial 16‐gauge intravenous (IV) catheter stylet vs. 15‐gauge intraosseous (IO) vascular access in emergencies. Methods Six healthy dogs were used in this study. After general anaesthesia, IO catheterisation was performed on both trochanteric fossae of the femurs using a commercial 16‐gauge IV catheter stylet and EZIO 15‐gauge IO needle. The pressures were measured by manual, gravity and mechanical infusion for 5 min each. Additionally, insertion time and success rate were recorded. Results In hand infusion, mean pressure of a 16‐gauge IO (605.06 ± 49.13 mmHg) was statistically lower than that of a 15‐gauge EZIO IO catheterisation (718.84 ± 93.09 mmHg). In gravity infusion, there was no significant difference in pressure during injection between the 16‐gauge IV catheter (52.23 ± 14.48 mmHg) and 15‐gauge EZIO IO catheterisation (50.68 ± 11.89 mmHg). In mechanical infusion, mean pressure of the 15‐gauge EZIO IO catheterisation (128.25 ± 50.16 mmHg) was lower than that of the 16‐gauge IV catheter (152.56 ± 67.23 mmHg). The insertion times of a 16‐gauge IV catheter and 15‐gauge EZIO IO catheterisation were 16.79 ± 0.92 and 11.65 ± 1.70 s, respectively. The success rates of the insertion were similar between both groups. Conclusion This study shows that IO catheterisation with a commercial IV catheter stylet can be an alternative method of IO catheterisation in an emergency, especially for rapid vascular access

Trajectory of severity of postoperative delirium symptoms and its prospective association with cognitive function in patients with gastric cancer: results from a prospective observational study

Purpose: Delirium is a common neurocognitive complication in cancer. Despite this, the studies examining the trajectory of the severity of delirium symptoms and its impact on health outcome in gastric cancer is rather limited. This study examined the trajectory of delirium symptom severity (DSS) following resection surgery for gastric cancer and its prospective association with cognitive function. Methods: A three-wave prospective observational study was conducted with 242 gastric cancer patients admitted for resection surgery at a teaching hospital in South Korea from May 2016 to November 2017. DSS was assessed by the clinical staff before and 1, 2, 3, and 7 days after surgery using the Delirium Rating Scale-Revised-98. A survey including the Functional Assessment of Cancer Therapy-Cognitive Scale (FACT-Cog) and Mini-Mental State Examination (MMSE) was administered before surgery (T0), 7 days after (T1), and 3 to 6 months after surgery (T2). Results: Out of 242 participants, 48.8% (118) completed the survey at all three time points, 43.4% (105) did so for two time points, and 7.9% (19) for one time point. No cases of full delirium were observed over four postoperative time points. Latent growth curve modeling analyses indicated that DSS declined over 3 days after surgery. Age and anesthesia time were positively associated with the initial level of DSS. A medication history for memory complaints was related to a slower recovery from delirium symptoms. While the use of propofol as an anesthetic agent was associated with lower initial DSS, it predicted a slower recovery from DSS. A higher initial DSS predicted a lower T1 MMSE score. Conclusions: Severity of postoperative delirium symptoms predicts a short-term and objective cognitive function post-surgery. Monitoring and timely treatment of postoperative delirium symptoms is needed to diminish cognitive consequences in gastric cancer patients