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Articles 1 - 22 of 22
Full-Text Articles in Medicine and Health Sciences
Controlling Balance Decline Across The Menopause Using A Balance-Strategy Training Program: A Randomized, Controlled Trial, S. Fu, Nancy Low Choy, Jennifer Nitz
Controlling Balance Decline Across The Menopause Using A Balance-Strategy Training Program: A Randomized, Controlled Trial, S. Fu, Nancy Low Choy, Jennifer Nitz
Nancy Low Choy
Objective: To evaluate effectiveness and long-term benefits of a specific balance-strategy training program in sedentary women aged 40-60 years and whether participation leads to adoption of a more active lifestyle. Method: Fifty healthy women were admitted to the randomized, controlled trial on the basis of their activity level. Subjects were randomly assigned to an intervention or control group, with the former attending twice-weekly for 12 weeks. Assessments made pre- and post-intervention and at 9 months follow-up included: personal demographics, hormone replacement therapy medication, activity level, balance measures, somatosensory function, ankle flexibility and leg muscle strength. Results: The intervention group showed …
Clinimetric Evaluation Of The Physical Mobility Scale Supports Clinicians And Researchers In Residential Aged Care, Anna Barker, Jennifer Nitz, Nancy Low Choy, Terry Haines
Clinimetric Evaluation Of The Physical Mobility Scale Supports Clinicians And Researchers In Residential Aged Care, Anna Barker, Jennifer Nitz, Nancy Low Choy, Terry Haines
Nancy Low Choy
Objective
To investigate the interrater agreement and the internal construct validity of the Physical Mobility Scale, a tool routinely used to assess mobility of people living in residential aged care.
Design
Prospective, multicenter, external validation study.
Setting
Nine residential aged care facilities in Australia.
Participants
Residents (N=186). Phase 1 cohort (99 residents; mean age, 85.22±5.1y); phase 2 cohort (87 residents; mean age, 81.59±10.69y).
Interventions
Not applicable.
Main Outcome Measures
Kappa statistics, minimal detectable change (MDC90) scores, and Bland-Altman plots were used to assess interrater agreement. Scale unidimensionality, item hierarchy, and person separation were examined with Rasch analysis for both cohorts. …
Rationale And Design Of The Prsm Study: Pulmonary Rehabilitation Of Self Management For Chronic Obstructive Pulmonary Disease (Copd), What Is The Best Approach?, Angela Chang, Terry Haines, Claire Jackson, Ian Yang, Jennifer Nitz, Nancy Low Choy, Bill Vicenzino
Rationale And Design Of The Prsm Study: Pulmonary Rehabilitation Of Self Management For Chronic Obstructive Pulmonary Disease (Copd), What Is The Best Approach?, Angela Chang, Terry Haines, Claire Jackson, Ian Yang, Jennifer Nitz, Nancy Low Choy, Bill Vicenzino
Nancy Low Choy
Background:
Pulmonary rehabilitation is only accessible by a small proportion of individuals with COPD. For the vast majority who are not able to access these programs, self management approaches may be an alternative to improve health care outcomes.
Methods:
The PRSM study is a three group randomised controlled trial with individual randomisation, blinded outcome assessment, 3 monthly follow-up assessments across a 12-month period and concurrent economic evaluation. The inclusion criteria are adults with COPD. The primary outcome measure is the St George Respiratory Disease Questionnaire. Secondary outcome measures include a series of questionnaires (Frenchay Activities Index, International Physical Activity Questionnaire, …
Comparison Of Sensorimotor Disturbance Between Subjects With Persistent Whiplash Associated Disorder And Subjects With Acoustic Neuromas, Julia Treleaven, Nancy Low Choy, Ross Darnell, Ben Panizza, David Brown-Rothwell, Gwendolen Jull
Comparison Of Sensorimotor Disturbance Between Subjects With Persistent Whiplash Associated Disorder And Subjects With Acoustic Neuromas, Julia Treleaven, Nancy Low Choy, Ross Darnell, Ben Panizza, David Brown-Rothwell, Gwendolen Jull
Nancy Low Choy
Objective
To determine if differences exist in reported symptoms and in outcomes of sensorimotor tests (cervical joint position error [JPE], neck-influenced eye movement control, postural stability) between subjects with persistent whiplash and subjects with unilateral vestibular pathology associated with acoustic neuroma.
Design
Repeated measures, case controlled.
Setting
Tertiary institution and metropolitan hospital.
Participants
Twenty subjects with persistent whiplash, 20 subjects with acoustic neuroma, and 20 control subjects.
Interventions
Not applicable.
Main Outcome Measures
Symptom descriptors, Dizziness Handicap Inventory (short form), measures of cervical JPE, the smooth pursuit neck torsion (SPNT) test, and forceplate measures of postural stability in comfortable and …
Falling Is Not Just For Older Women: Support For Pre-Emptive Prevention Intervention Before 60, Jennifer Nitz, Nancy Low Choy
Falling Is Not Just For Older Women: Support For Pre-Emptive Prevention Intervention Before 60, Jennifer Nitz, Nancy Low Choy
Nancy Low Choy
Objective
This study aimed to report falls and identify factors that might predict a fall in women aged between 40 and 80 years and thus provide evidence of earlier falls and need for morbidity preventive intervention.
Design and participants
A prospective cohort study design over 5 years. Personal demographic data of age, co-morbidities, number of prescribed medications, falls, activity level and living situation were obtained at face-to-face interview. Height, weight, body mass index and postural stability were measured in participating women living independently in the community.
Results
Women were categorized into age decade cohorts, with 463 remaining at the year …
Linking Stability To Demographics, Strength And Sensory System Function In Women Over 40 To Support Pre-Emptive Preventive Intervention, Nancy Low Choy, Sandra Brauer, Jennifer Nitz
Linking Stability To Demographics, Strength And Sensory System Function In Women Over 40 To Support Pre-Emptive Preventive Intervention, Nancy Low Choy, Sandra Brauer, Jennifer Nitz
Nancy Low Choy
Objective
To investigate differences in demographics, strength and sensory system function of 254 women aged 40-80 years categorized as stable, unsteady or unstable using simple balance tests.
Method
Demographics (age, height, weight, medications, co-morbidities, falls history, activity level), measures of quadriceps, hip abductor and adductor strength, somatosensory, visual and vestibular function were recorded. Subjects were categorized as stable (completed all trials), unsteady (failed one/two trials) or unstable (failed all trials) after three 10-s trials of bilateral stance (foam surface, eyes closed (EC)) and one-leg stance (firm surface, eyes open (EO)), and the results were compared.
Results
Both balance tasks identified …
Age-Related Changes In Strength And Somato-Sensation During Mid-Life Support Rationale For Targeted Preventive Intervention Programs, Nancy Low Choy, Sandra Brauer, Jennifer Nitz
Age-Related Changes In Strength And Somato-Sensation During Mid-Life Support Rationale For Targeted Preventive Intervention Programs, Nancy Low Choy, Sandra Brauer, Jennifer Nitz
Nancy Low Choy
Age-related changes in strength and somatosensation have a negative impact on balance with advanced age. Knowledge of the decades of life when strength and somatosensation show initial and subsequent reductions could inform balance assessment and targeted preventive intervention. We report a cross-sectional study investigating strength and somatosensation of 316 healthy women aged 20–80 years. Demographics, health profile, and activity level were recorded. Strength of quadriceps, hip abductors and adductors, and lower limb somatosensation (tactile acuity, vibration threshold, and joint position error) were measured. Significant age-related changes in strength and somatosensory function were identified, even when demographic variables of activity level, …
Timed Stance Performances Reflect Differences In Age, Prevalence Of Co-Morbidities, Medication Use, Fall’S History And Activity Level: Early Screening For Balance Loss Is Indicated, Nancy Low Choy, Sandra Brauer, Jennifer Nitz
Timed Stance Performances Reflect Differences In Age, Prevalence Of Co-Morbidities, Medication Use, Fall’S History And Activity Level: Early Screening For Balance Loss Is Indicated, Nancy Low Choy, Sandra Brauer, Jennifer Nitz
Nancy Low Choy
Objectives:
To determine if 10-second trials of bilateral and one-legged stance measures detected balance loss and influence of known risk factors for falls in women aged 20–80 years.
Methods:
456 healthy adult women attempted 10-second trials of bilateral stance (firm and foam surfaces) and one-legged stance, with eyes open (EO) and eyes closed (EC). Data for age, co-morbidities, medication use, fall history and activity level were compared for three categories of stability: (i) stable: all trials completed; (ii) unsteady: completed/failed one to two trials; and (iii) failed all trials.
Results:
Bilateral stance on foam (EC) and one-legged stance (EO) yielded …
Changes In Activity Level In Women Age 40 To 80 Years, Jennifer Nitz, Nancy Low Choy
Changes In Activity Level In Women Age 40 To 80 Years, Jennifer Nitz, Nancy Low Choy
Nancy Low Choy
Objectives
The purpose of this study was to report habitual physical activity levels in women and document the change in level of activity and factors affecting this change over a 5-year period.
Methods
A 5-year prospective cohort design was used. Women aged 40-80 years, living independently in the community, were recruited via the electoral role. The effects were investigated, first, of age, activity level, history of falls, number of co-morbidities and medications, body mass index and stability at baseline on change in activity level and, second, change in these demographics on activity level over the study period.
Results
Data from …
The Relationship Of Cervical Joint Position Error To Balance And Eye Movement Disturbances In Persistent Whiplash, Julia Treleaven, Gwendolen Jull, Nancy Low Choy
The Relationship Of Cervical Joint Position Error To Balance And Eye Movement Disturbances In Persistent Whiplash, Julia Treleaven, Gwendolen Jull, Nancy Low Choy
Nancy Low Choy
Cervical joint position error (JPE) has been used as a measure of cervical afferent input to detect disturbances in sensori-motor control as a possible contributor to a neck pain syndrome. This study aimed to investigate the relationship between cervical JPE, balance and eye movement control. It was of particular interest whether assessment of cervical JPE alone was sufficient to signal the presence of disturbances in the two other tests. One hundred subjects with persistent whiplash-associated disorders (WADs) and 40 healthy controls subjects were assessed on measures of cervical JPE, standing balance and the smooth pursuit neck torsion test (SPNT). The …
Smooth Pursuit Neck Torsion Test In Whiplash Associated Disorders - Relationship To Self Reports Of Neck Pain And Disability, Dizziness And Anxiety, Julia Treleaven, Gwendolen Jull, Nancy Low Choy
Smooth Pursuit Neck Torsion Test In Whiplash Associated Disorders - Relationship To Self Reports Of Neck Pain And Disability, Dizziness And Anxiety, Julia Treleaven, Gwendolen Jull, Nancy Low Choy
Nancy Low Choy
Objective:
The smooth pursuit neck torsion test is thought to be a measure of neck afferent influence on eye movement control and is useful in assessing subjects with whiplash, especially those complaining of dizziness. Nevertheless, it is not known whether impairments identified relate only to abnormal cervical afferentation or are influenced by levels of anxiety or neck pain.
Design:
A prospective, 3-group, observational design.
Subjects:
One hundred subjects with persistent whiplash (50 complaining of dizziness, 50 not complaining of dizziness) and 50 healthy controls.
Methods:
The smooth pursuit neck torsion test was performed and analysed taking into account subjects' reported …
The Effect Of Depression On Balance Decline In Mature Women, Jennifer Nitz, Nancy Low Choy, Meredith Ogilvie
The Effect Of Depression On Balance Decline In Mature Women, Jennifer Nitz, Nancy Low Choy, Meredith Ogilvie
Nancy Low Choy
Depression has been identified as a risk factor for falls, and a change in balance ability over time has yet to be investigated. This study aimed to identify if, over a 3-year period, balance ability changed in 26 women who were on medication for depression, compared to 26 non-depressed women. The two groups were matched for age, number of co-morbidities, activity level, medications, and height. All participants were simultaneously enrolled in a larger, longitudinal study of ageing. Balance measures included the Functional Reach (FR) test, Lateral Reach (LR) test, Step Test (ST), Timed Up and Go, and the Modified Clinical …
Standing Balance In Persistent Wad – Comparison Between Subjects With And Without Dizziness, Julia Treleaven, Gwendolen Jull, Nancy Low Choy
Standing Balance In Persistent Wad – Comparison Between Subjects With And Without Dizziness, Julia Treleaven, Gwendolen Jull, Nancy Low Choy
Nancy Low Choy
Objective:
Dizziness and unsteadiness, associated with altered balance, are frequent complaints in subjects suffering persistent whiplash associated disorders. Research has been inconclusive with respect to possible aetiology. This study assessed balance responses in subjects with whiplash associated disorders, taking into account several possible causes.
Design:
A prospective, 3 group, observational design.
Subjects:
100 subjects with persistent whiplash associated disorders, 50 complaining of dizziness, 50 not complaining of dizziness and 50 healthy controls.
Methods:
The Clinical Test for Sensory Interaction in Balance was performed in both comfortable and tandem stance. The sway trace was analysed using wavelet analysis.
Conclusion:
The results …
Is Signal Analysis Important For Measuring Standing Balance In Chronic Whiplash?, Julia Treleaven, Robert Murison, Gwendolen Jull, Nancy Low Choy, Sandy Brauer
Is Signal Analysis Important For Measuring Standing Balance In Chronic Whiplash?, Julia Treleaven, Robert Murison, Gwendolen Jull, Nancy Low Choy, Sandy Brauer
Nancy Low Choy
Dizziness and or unsteadiness, associated with episodes of loss of balance, are frequent complaints in those suffering from persistent problems following a whiplash injury. Research has been inconclusive with respect to possible aetiology, discriminative tests and analyses used.
The aim of this pilot research was to identify the test conditions and the most appropriate method for the analysis of sway that may differentiate subjects with persistent whiplash associated disorders (WAD) from healthy controls. The six conditions of the Clinical Test for Sensory Interaction in Balance was performed in both comfortable and tandem stance in 20 subjects with persistent WAD compared …
Retraining Balance Using Task-Focussed Work-Stations, Nancy Low Choy
Retraining Balance Using Task-Focussed Work-Stations, Nancy Low Choy
Nancy Low Choy
Extract:
This chapter aims to:
Present a task-oriented approach to retraining balance and mobility using workstations as an effective mode of delivering tailored interventions to individual or small groups of residents or community-based elders who are: frail aged; elders who ambulate with supervision within residential care facilities; or elders who are independently ambulant in the community.
Provide an outline of workstations that illustrate varying levels of challenge but address the multiple aspects of balance and mobility that need to be considered while retraining balance and mobility in elders.
© Copyright Elsevier Limited, 2004
A Theoretical Framework For The Assessment And Treatment Of Balance And Mobility Deficits, Nancy Low Choy
A Theoretical Framework For The Assessment And Treatment Of Balance And Mobility Deficits, Nancy Low Choy
Nancy Low Choy
Extract:
This chapter aims to:
Review the theoretical elements that contribute to balance and mobility as a basis for assessing balance and mobility in the elderly, and presenting a tailored but multidimensional approach to assessing and retraining balance and mobility deficits in the elderly.
Describe a process of assessing balance and mobility in the elderly that uses observational and problem-solving skills while analysing balance and mobility tasks, identifies and measures impairments, and monitors progress and outcomes for elders of varying functional motor ability.
© Copyright Elsevier Limited, 2004
Normal Values Of Balance Tests In Women Aged 20 - 80, Rosemary Isles, Nancy Low Choy, Marie Steers, Jennifer Nitz
Normal Values Of Balance Tests In Women Aged 20 - 80, Rosemary Isles, Nancy Low Choy, Marie Steers, Jennifer Nitz
Nancy Low Choy
Objectives:
To determine normal values for four commonly used clinical functional balance tests from community-dwelling women aged 20 to 80 and to identify any significant decline due to aging.
Design:
A cross-sectional study was undertaken to provide normative values for four clinical balance tests across 6 decade cohorts.
Setting:
The Betty Byrne-Henderson Center for Women and Aging, Royal Womens' Hospital, Brisbane, Australia.
Participants:
Four hundred fifty-six community-dwelling, independently ambulant women with no obvious neurological or musculoskeletal-related disability, aged 20 to 80, were randomly recruited from a large metropolitan region.
Measurements:
The clinical balance measures/tests were the Timed Up and Go …
The Efficacy Of A Balance Strategy Training Circuit For Community Based Elders Who Have Had A Fall, Jennifer Nitz, Nancy Low Choy
The Efficacy Of A Balance Strategy Training Circuit For Community Based Elders Who Have Had A Fall, Jennifer Nitz, Nancy Low Choy
Nancy Low Choy
Background:
Older people participate in exercise programmes to reduce the risk of falls but no study has investigated a specific balance strategy training intervention presented in a workstation format for small groups.
Objective:
To determine whether a specific balance strategy training programmeme delivered in a workstation format was superior to a community based exercise class programme for reducing falls.
Design:
A randomised controlled trial model.
Setting:
Neurological Disorders, Ageing and Balance Clinic, Department of Physiotherapy, The University of Queensland.
Subjects:
73 males and females over 60 years, living independently in the community and who had fallen in the previous year …
The Efficacy Of A Work-Station Intervention Program To Improve Functional Ability And Flexibility In Ageing Clients With Cerebral Palsy: A Pilot Study, Nancy Low Choy, Rosemary Isles, Ruth Barker, Jennifer Nitz
The Efficacy Of A Work-Station Intervention Program To Improve Functional Ability And Flexibility In Ageing Clients With Cerebral Palsy: A Pilot Study, Nancy Low Choy, Rosemary Isles, Ruth Barker, Jennifer Nitz
Nancy Low Choy
Purpose:
Health care workers associated with the long-term care of ageing clients with Cerebral Palsy have reported on the adverse effects of less active daily activity programmes with resultant decreased functional mobility. While the negative effects of ageing have been reported in these clients, programmes have not been implemented to determine whether these adverse changes can be reversed or prevented. The efficacy of a work-station intervention programme to improve functional ability and flexibility in ageing clients with cerebral palsy was investigated.
Method:
A clinical intervention study using repeated measures (pre/post-intervention and at follow-up) to evaluate efficacy was undertaken. Twenty-two clients …
Medial-Lateral Postural Stability And Balance In Community Dwelling Women Over 40 Years Of Age, Jennifer Nitz, Nancy Low Choy, Rosemary Isles
Medial-Lateral Postural Stability And Balance In Community Dwelling Women Over 40 Years Of Age, Jennifer Nitz, Nancy Low Choy, Rosemary Isles
Nancy Low Choy
Objective:
To document the change in medial–lateral balance in women aged between 40 and 80 years.
Design:
A cross-sectional study of six measures of medial–lateral balance was undertaken.
Setting:
The Betty Byrne Henderson Centre for Women and Ageing, Royal Women's Hospital, Australia.
Subjects:
Five hundred and three community-dwelling women between 40 and 80 years of age were randomly recruited from a large metropolitan region with 366 subjects admitted after applying exclusion criteria.
Measurements:
The clinical measurements included the lateral reach and step tests while laboratory measurements were gathered from the Balance Master software programs for unilateral stance and limits of …
Changes In Postural Stability In Women Aged 20 To 80 Years, Nancy Low Choy, Sandra Brauer, Jennifer Nitz
Changes In Postural Stability In Women Aged 20 To 80 Years, Nancy Low Choy, Sandra Brauer, Jennifer Nitz
Nancy Low Choy
Background.
A study of postural stability was undertaken to identify the relationship between vision and support surface across age decades. Understanding when reliance on vision for postural stability emerges and the support conditions contributing to this instability may provide the evidence required to introduce falls-prevention strategies in younger age decades.
Methods.
We measured postural stability in 453 women aged 20 to 80 years using the Balance Master force-plate system while the women performed the modified Clinical Test for the Sensory Interaction and Balance (firm and foam surfaces, eyes open and closed) and the Single-Limb Stance Test (eyes open and closed). …
Shoulder Pain, Range Of Movement And Functional Recovery After Acute Tetraplegia, Susan Salisbury, Nancy Low Choy, Jennifer Nitz
Shoulder Pain, Range Of Movement And Functional Recovery After Acute Tetraplegia, Susan Salisbury, Nancy Low Choy, Jennifer Nitz
Nancy Low Choy
Objectives:
To investigate (1) the prevalence and course of shoulder pain in acute tetraplegia and (2) its relationship with range of motion (ROM) and function and any associated risk factors.
Design:
A longitudinal prospective study.
Setting:
Spinal injury unit in an Australian hospital.
Participants:
Inpatients with acute tetraplegia.
Interventions:
Not applicable.
Main Outcome Measures:
Demographics, pain intensity, shoulder ROM, and functional motor skills.
Results:
The prevalence of pain during rehabilitation was 85%. Risk factors associated with pain during rehabilitation included age less than 30 years or more than 50 years (F 8.892, P .064), admission motor level at C2-5 (F …