balancebombom prospekt paperturn - Flipbook - Side 18
Korrellation mellem proprieception,
muskelstyrke og balance
INTRODUCTION
Balance, as an essential function in human
daily life and sports activities, can be defined
as central nervous system input from proprioceptive, vestibular, and visual afferent nerve
signals, with analysis of signal integration.
Human body posture is controlled by motor
neurons that regulate muscle activity1, 2).
Postural control can be divided into static
balance and dynamic balance; static balance
controls the oscillation amplitude of the body,
and dynamic balance uses the body’s internal
and external information to analyse factors
that influence the stability of interference
(Such as walking, pushing and pulling), to
maintain postural control. The perfect combination of static and dynamic balance is key
to normal activities of the human daily life3).
Based on recent research, Fig. 1 summarizes
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the factors that affect balance ability4). These
factors include proprioception, vestibular and
visual incoming signals, central nervous system (CNS) signal analysis and comprehension
ability, and muscle coordination and control
ability. The factors potentially influencing
postural balance include fatigue, age, gender,
physical activity ability, and lower limb injury.
The most commonly used methods to study
balance ability in the elderly evaluate lower
limb muscle strength, arthritis, and athletic
knee cruciate ligament injuries. The most
commonly used methods to evaluate balance
ability of the knee joint include single and
double foot support, swing track under conditions of dynamic or static gravity, and knee
raise for proprioception ability5, 6).
