The relationship between knee extension strength and lower extremity functions in nursing home residents with dementia

Kirimoto, Hikari; Inamura, Atsushi; Yagi, Masayuki; Omori, Yoshitsugu; Yamada, Sumio

doi:10.3109/09638288.2011.593678

Cited by 23 publications

(23 citation statements)

References 35 publications

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“…The strength index was modeled as a simple regression, and parameter estimates were assessed for goodness of fit to the model: strength index = β 1 X + β 2 Y ( β 1 , standardized discriminant coefficient of paretic lower limb; X , normalized knee extension strength of paretic lower limb; β 2 , standardized discriminant coefficient of nonparetic lower limb; Y , normalized knee extension strength of nonparetic lower limb). The threshold level for prediction of independence was judged as the point where both the negative and positive predictive values were high 46 , 47 , 48 ) . All statistical procedures were carried out using SPSS software.…”

Section: Methodsmentioning

confidence: 99%

The relationship between bilateral knee muscle strength and gait performance after stroke: the predictive value for gait performance

Watanabe

Sugimura²,

Kawaguchi

et al. 2015

J Phys Ther Sci

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[Purpose] The purpose of this study was to assess the relationships between bilateral knee extension strengths and gait performance in subjects with poststroke hemiparesis and to predict gait performance by the paretic and nonparetic knee extension strength. [Subjects and Methods] This was a correlational study in which 238 consecutive inpatients with poststroke hemiparesis were enrolled. Knee extensor muscle strengths in paretic and nonparetic lower limbs were measured with a handheld dynamometer, and the presence or absence of impaired gait was also determined. [Results] The mean strength in the paretic lower limb was 0.90 Nm/kg, and that in the nonparetic lower limb was 1.24 Nm/kg. Discriminant analysis classified the difference between the possibility and impossibility of gait by knee extensor muscle strength (standardized discriminant coefficient: paretic, 1.32; nonparetic, 0.55). Thus, paretic and nonparetic knee extension strengths were integrated in the strength index. A threshold level of 2.0 provided the best balance between positive and negative predictive values for the strength index. [Conclusion] The results indicated that both paretic and nonparetic knee extension strengths were related to gait performance. The strength index deduced from bilateral knee extension strengths may serve as a clinically meaningful index for rehabilitation assessment and training.

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Section: Methodsmentioning

confidence: 99%

The relationship between bilateral knee muscle strength and gait performance after stroke: the predictive value for gait performance

Watanabe

Sugimura²,

Kawaguchi

et al. 2015

J Phys Ther Sci

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“…It is also an important risk factor for the inability to perform lower extremity functional tasks such as walking, sit to stand transfers, climbing steps and lower body dressing [ 18 – 20 ]. Threshold levels of knee extension muscle strength can predict lower extremity dysfunction in people with dementia and muscle strength training based on knee extension muscle strength is needed for prevention of functional decline and improvement of muscle strength in people with dementia [ 20 ]. Muscle strength training may improve balance [ 21 ], and may be particularly beneficial for older adults with cardiovascular risk factors and functional limitations for whom aerobic exercise may be problematic.…”

Section: Introductionmentioning

confidence: 99%

Effect of a High-Intensity Exercise Program on Physical Function and Mental Health in Nursing Home Residents with Dementia: An Assessor Blinded Randomized Controlled Trial

2015

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BackgroundDementia is among the leading causes of functional loss and disability in older adults. Research has demonstrated that nursing home patients without dementia can improve their function in activities of daily living, strength, balance and mental well being by physical exercise. The evidence on effect of physical exercise among nursing home patients with dementia is scarce and ambiguous. Thus, the primary objective of this study was to investigate the effect of a high intensity functional exercise program on the performance of balance in nursing home residents with dementia. The secondary objective was to examine the effect of this exercise on muscle strength, mobility, activities of daily living, quality of life and neuropsychiatric symptoms.Design and MethodsThis single blinded randomized controlled trial was conducted among 170 persons with dementia living in nursing homes. Mean age was 86.7 years (SD = 7.4) and 74% were women. The participants were randomly allocated to an intervention (n = 87) or a control group (n = 83). The intervention consisted of intensive strengthening and balance exercises in small groups twice a week for 12 weeks. The control condition was leisure activities.ResultsThe intervention group improved the score on Bergs Balance Scale by 2.9 points, which was significantly more than the control group who improved by 1.2 points (p = 0.02). Having exercised 12 times or more was significantly associated with improved strength after intervention (p<0.05). The level of apathy was lower in the exercise group after the intervention, compared to the control group (p = 0.048).ConclusionThe results from our study indicate that a high intensity functional exercise program improved balance and muscle strength as well as reduced apathy in nursing home patients with dementia.Trial RegistrationClinicalTrials.gov NCT02262104

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“…The strength of the knee extensor and flexor muscles has been extensively studied and is a relevant clinical indicator of health status and functional capacity in coronary artery disease8 ) , neuromuscular diseases9 ) , the elderly10 ) , renal disease11 ) , and fibromyalgia12 ) . In sports medicine, knee extensor and flexor muscle strength is often monitored with the aim of preventing or treating orthopedic as well as muscular injuries13,14,15,16,17,18,19 ) .…”

Section: Introductionmentioning

confidence: 99%

Comparative assessment of knee extensor and flexor muscle strength measured using a hand-held vs. isokinetic dynamometer

et al. 2016

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[Purpose] To compare measurements of knee extensor and flexor muscle strength performed using a hand-held dynamometer and an isokinetic dynamometer in apparently healthy subjects. [Subjects and Methods] Thirty adult volunteers underwent knee muscle strength evaluation using an isokinetic or a hand-held dynamometer. [Results] Strong positive correlations were found between the 2 methods, with correlation coefficients r ranging from 0.72 (95% confidence interval [CI], 0.48−0.86) to 0.87 (95% CI, 0.75−0.94), depending on the muscle group and the isokinetic evaluation mode. The reproducibility of the hand-held dynamometer findings was good, judged by a coefficient of variation of 3.2–4.2%. However, the correlation between the 2 methods for the assessment of flexor/extensor ratios ranged from −0.04 to 0.46. [Conclusion] Knee extensor and flexor muscle strength recorded with a hand-held dynamometer is reproducible and significantly correlated with the isokinetic values, indicating that this method may in some cases be a useful replacement for isokinetic strength measurement. However, for strength ratio assessment, and when judged against the isokinetic standard, a hand-held dynamometer is not a valid option.

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The relationship between knee extension strength and lower extremity functions in nursing home residents with dementia

Abstract: Knee extension strength was significantly related to the lower extremity functions in people with dementia. Moreover, threshold levels of strength existed that could predict lower extremity dysfunctions in people with dementia.

Cited by 23 publications

References 35 publications

The relationship between bilateral knee muscle strength and gait performance after stroke: the predictive value for gait performance

The relationship between bilateral knee muscle strength and gait performance after stroke: the predictive value for gait performance

Effect of a High-Intensity Exercise Program on Physical Function and Mental Health in Nursing Home Residents with Dementia: An Assessor Blinded Randomized Controlled Trial

Comparative assessment of knee extensor and flexor muscle strength measured using a hand-held vs. isokinetic dynamometer

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