Nesser TW, Lee WL. The relationship between core strength and performance in Division I female soccer players. JEPonline 2009; 12(2):21-28. To identify relationships between core stability and various strength and power variables in division I female soccer players. 16 NCAA division I female soccer players (height 163.6 cm ± 5.2 cm, weight 60.7 kg ± 7.5 kg) completed strength and performance testing prior to off-season conditioning. Subjects were tested on two strength variables (1RM bench press, and 1RM squat), three performance variables (countermovement vertical jump, 40 yard sprint, and a 10 yard shuttle run), and core strength (back extension, trunk flexion, and left and right bridge). No significant correlations were identified between core strength and strength and power. The results of this study suggest core strength is not related to strength and power. Core strength does not contribute significantly to strength and power and should not be the focus of any strength and conditioning program with the intent to improve sport performance.
Key Words: Training, Athlete, Core Stability
The whole study is available for you to read.
Here is some more:
Despite the fact significant correlations were not identified between core strength and athletic performance, it does not warrant neglect of the core. At the same time, it appears the core is no more important than any other body part.
Based on the results of the current and previous research, it is believed core training is necessary for optimal sport performance and should not be dismissed. However, it should not be the emphasis of any resistance training program. The core is one part of the body thus it is should not be the focus of any training program taking time away from other body parts which may lead to a muscle imbalance and possible injury.
Hat tip to Luke