Rogan S, Blasimann A, Nyffenegger D, Zimmerli N, Radlinger L
Berner Fachhochschule, Fachbereich Gesundheit, Disziplin Physiotherapie, Bern, Schweiz.
Sportverletz Sportschaden. 2013 Dec;27(4):212-8. doi: 10.1055/s-0033-1356113. Epub 2013 Dec 18.
Good core strength is seen as a condition for high performance in sports. In general, especially maximum voluntary contraction (MVC) and strength endurance (SE) measurements of the core muscles are used. In addition, a few studies can be found that examine the core muscles in terms of MVC, rate of force development (RFD) and SE. Primary aims of this feasibility study were to investigate the feasibility regarding recruiting process, compliance and safety of the testing conditions and raise the force capabilities MVC, RFD and SE of the core muscles in amateur ice hockey players. Secondarily, tendencies of correlations between muscle activity and either shot speed and sprint time shall be examined.
SUBJECTS/METHODS: In this feasibility study the recruitment process has been approved by 29 ice hockey players, their adherence to the study measurements of trunk muscles, and safety of the measurements was evaluated. To determine the MVC, RFD and SE for the ventral, lateral and dorsal core muscles a dynamic force measurement was performed. To determine the correlation between core muscles and shot speed and 40-m sprint, respectively, the rank correlation coefficient (rho) from Spearman was used.
The recruited number of eight field players and one goal-keeper was not very high. The compliance with 100 % was excellent. The players reported no adverse symptoms or injuries after the measurements. The results show median values for the ventral core muscles for MVC with 46.5 kg for RFD with 2.23 m/s2 and 96 s for the SE. For lateral core muscle median values of the lateral core muscles for MVC with 71.10 kg, RFD with 2.59 m/s2 and for SE over 66 s were determined. The dorsal core muscles shows values for MVC 69.7 kg, for RFD 3.39 m/s2 and for SE of 75 s. High correlations between MVC of the ventral core muscles (rho = -0.721, p = 0.021), and between the SE of the ventral core muscles (rho = 0.787, p = 0.012), and the shot velocity rate were determined. Another high correlation between SE of the ventral core muscles and sprint over 40 m (rho = 0.717, p = 0.030) could be demonstrated.
This feasibility study has shown that the implementation of the selected design is adapted for future studies. Further studies are needed to better understand the relationship between the velocity rate and the MVC, and the SE respectively, as well as between the sprint and the SE.
良好的核心力量被视为在体育运动中取得优异成绩的一个条件。一般来说，尤其会采用核心肌肉的最大自主收缩（MVC）和力量耐力（SE）测量方法。此外，还能找到一些从MVC、力量发展速率（RFD）和SE方面研究核心肌肉的研究。这项可行性研究的主要目的是调查招募过程、测试条件的依从性和安全性方面的可行性，并提高业余冰球运动员核心肌肉的MVC、RFD和SE力量能力。其次，将研究肌肉活动与射门速度和短跑时间之间的相关趋势。
受试者/方法：在这项可行性研究中，招募过程得到了29名冰球运动员的认可，评估了他们对躯干肌肉研究测量的依从性以及测量的安全性。为了确定腹侧、外侧和背侧核心肌肉的MVC、RFD和SE，进行了动态力量测量。为了分别确定核心肌肉与射门速度和40米短跑之间的相关性，使用了Spearman秩相关系数（rho）。
招募的8名场上球员和1名守门员数量不算多。100%的依从性非常好。测量后球员们未报告任何不良症状或损伤。结果显示，腹侧核心肌肉的MVC中位数为46.5千克，RFD为2.23米/秒²，SE为96秒。外侧核心肌肉的MVC中位数为71.10千克，RFD为2.59米/秒²，SE超过66秒。背侧核心肌肉的MVC值为69.7千克，RFD为3.39米/秒²，SE为75秒。确定了腹侧核心肌肉的MVC之间（rho = -0.721，p = 0.021）以及腹侧核心肌肉的SE之间（rho = 0.787，p = 0.012）与射门速度率之间存在高度相关性。还可以证明腹侧核心肌肉的SE与40米以上短跑之间存在另一个高度相关性（rho = 0.717，p = 0.030）。
这项可行性研究表明，所选设计的实施适合未来的研究。需要进一步研究以更好地理解速度率与MVC和SE之间的关系，以及短跑与SE之间的关系。
