Instituto Henriqueta Teixeira

Core Stabilization Exercises Enhance Lactate Clearance Following High-Intensity Exercise

JAMES W. NAVALTA[1] AND STEPHEN P , HRNCIR JR[2]

1. Department of Physical Education and Recreation, Western Kentucky University, Bowling Green, Kentucky 42101;
2. English Department, Trinity High School, Trinity, Texas 75862.

ABSTRACT

Navalta, J.W., and S.P. Hrncir Jr. Core stabilization exercises enhance lactate clearance following high-intensity exercise. J. Strength Cond. Res. 21(4):1305-1309. 2007.—Dynamic  activities such as running, cycling, and swimming have been shown to effectively reduce lactate in the postexercise period. It is unknown whether core stabilization exercises performed following an intense bout would exhibit a similar effect. Therefore, this study was designed to assess the extent of the lactate response with core stabilization exercises following high-intensity anaerobic exercise. Subjects (N = 12) reported twice for testing, and on both occasions baseline lactate was obtained after 5 minutes of seated rest. Subjects then performed a 30-second Winfjate anaerobic cycle test, immediately followed by a blood lactate sample. In the 5-minute postexercise period, subjects either rested quietly or performed core stabilization exercises. A final blood lactate sample was obtained following the 5-minute intervention period. Analysis revealed a significant interaction (p = 0.05). Lactate values were similar at rest (core = 1.4 ± 0.1, rest = 1.7 ± 0.2 mmol-L 1) and immediately after exercise (core = 4.9 ± 0.6, rest = 5.4 ± 0.4 mmol-L 1). However, core stabilization exercises performed during the 5-minute postexercise period reduced lactate values when compared to rest (5.9 ± 0.6 vs. 7.6 ± 0.8 mmol-L 1). The results of this study show that perfonning core stabilization exercises during a recovery period significantly reduces lactate values. The reduction in lactate may be due to removal via increased blood flow or enhanced uptake into the core musculature. Incorporation of core stability exercises into a cool-down period following muscular work may result in benefits to both lactate clearance as well as enhanced postural control.

KEY WORDS: lactic acid, trunk, lumbo-pelvic-hip complex

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