CONCLUSION On the basis of systematic review of relevant literature , it appears that muscle fatigue induces clear deteriorations in reactive postural control .
BACKGROUND Falls are the leading cause of traumatic brain injury and fractures and the No. 1 cause of emergency department visits by older adults .
Although declines in muscle strength and sensory function contribute to increased falls in older adults , skeletal muscle fatigue is often overlooked as an additional contributor to fall risk .
In an effort to increase awareness of the detrimental effects of skeletal muscle fatigue on postural control , we sought to systematic ally review research studies examining this issue .
PURPOSE The specific purpose of this review was to provide a detailed assessment of how anticipatory and reactive postural control tasks are influenced by  acute muscle fatigue in healthy older individuals .
An examination, correlation, and comparison of static and dynamic measures of postural stability in healthy, physically active adults.
OBJECTIVE To examine the relationship and differences between static and dynamic postural stability in healthy , physically active adults . DESIGN Descriptive laboratory study . SETTING Research laboratory . PARTICIPANTS Ten females ( age : 21.6 ± 1.2 yrs , mass : 60.8 ± 7.6 kg , height : 165.0 ± 5.0 cm ) and ten males ( age : 25.1 ± 3.0 yrs , mass : 73.9 ± 8.7 kg , height : 173.5 ± 9.0 cm ) . MAIN OUTCOME MEASURES Static postural stability was measured during a single-leg st and ing task ( st and ard deviation of the ground reaction forces ) . Dynamic postural stability was measured during a single-leg l and ing task using the Dynamic Postural Stability Index . Pearson 's r-coefficients were calculated to examine relationships between the two tests and a one-way ANOVA was calculated to examine potential differences in test scores ( p < 0.05 ) . RESULTS None of the Pearson 's r-coefficients achieved statistical significance . The one-way ANOVA and post hoc comparisons demonstrated that dynamic postural stability scores were significantly higher than static postural stability scores . CONCLUSIONS A lack of a correlation between static and dynamic measures and increase in difficulty during dynamic measures indicates differences in the type and magnitude of challenge imposed by the different postural stability tasks . The more challenging dynamic measures of postural stability may be more suitable for prospect i ve studies examining risk of ankle and knee injury in healthy , physically active individuals
CONCLUSION On the basis of systematic review of relevant literature , it appears that muscle fatigue induces clear deteriorations in reactive postural control .
BACKGROUND Falls are the leading cause of traumatic brain injury and fractures and the No. 1 cause of emergency department visits by older adults .
Although declines in muscle strength and sensory function contribute to increased falls in older adults , skeletal muscle fatigue is often overlooked as an additional contributor to fall risk .
In an effort to increase awareness of the detrimental effects of skeletal muscle fatigue on postural control , we sought to systematic ally review research studies examining this issue .
PURPOSE The specific purpose of this review was to provide a detailed assessment of how anticipatory and reactive postural control tasks are influenced by  acute muscle fatigue in healthy older individuals .