(Economic and decision analysis-developing an economic or decision model), Level II.

Kalaycioglu, T, Apostolopoulos, NC, Goldere, S, Duger, T, and Baltaci, G. Effect of a core stabilization training program on performance of ballet and modern dancers. J Strength Cond Res 34(4): 1166–1175, 2020—The aim of this study was to investigate the effects of a core stabilization training (CST) program on performance of university-level ballet and modern dancers. Twenty-four dancers between the ages of 18 and 24 years participated in the study. Core stabilization training was performed for 45–60 minutes per day, 3 days a week, for 8 weeks. For 2 days, the training was conducted by an experienced physiotherapist, and the other day, each participant exercised on his or her own. Evaluation of physical fitness parameters included vertical jump performance, flexibility, dynamic balance, coordination, proprioception, muscle, and hip flexion isokinetic strength measures. Wilcoxon signed rank test was used to compare pre- and post-test values. Statistically significant increases in vertical jump performance, dynamic balance, proprioception, and coordination parameters between pre- and post-training (p < 0.05) were observed. After the CST program, peak torque values for the hip flexor muscle isokinetic test of the dancers decreased (p < 0.05). Therefore, the results suggest that the CST program might be used to improve several physical fitness parameters such as jumping, proprioception, coordination, and dynamic balance. Such improvements will aid in the development of artistic skills for university modern dancers.

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Objectives:Thumb metacarpophalangeal (MCP) joint injury is frequently seen due to dynamic character of handball game. Spica taping is generally applied to protect thumb during returning to sports activities following rehabilitation in handball player. The aim of this study was to investigate the effect of spica taping on grip strength and grip endurance in professional handball players.Methods:Thirteen female handball players who was playing in Turkey Handball Federation Super League participated in the study. Mean age was 25.23±5.47 years, mean age of beginning to sports was 13.15±5.62 years, mean body mass index was (BMI) 22.38±2.74 kg/cm2. Hand grip strength and grip endurance in dominant side were evaluated before and after spica taping. “Jamar Hand Dynamometer” was used to assess hand grip strength. Grip endurance was measured in seconds during half of average grip strength sustaining for each players. All assessments were applied while sitting during shoulder adduction and neutral rotation with 90° elbow flexion, forearm midrotation, and neutral wrist position. Measurements were repeated 3 times and average values were recorded.Results:There was a statistically significant difference in grip strength between before and after spica taping application (p<0.001). There was a statistically difference in grip endurance between before and after spica taping application (p<0.001).Conclusion:Our results demonstrated that thumb spica taping is effective in improving grip strength and grip endurance in handball players. We suggest that supporting thumb stabilization without limiting hand functions might protect the MCP joint, and contribute injury prevention accompanying with improving sports performance. Consequently, thumb taping is recommended to handball players before competition.