Assessment of subjective and motor fatigue in Polio survivors, attending a Postpolio clinic, comparison with healthy controls and an exploration of clinical correlates

Murray, Deirdre; Hardiman, Orla; Meldrum, Dara

doi:10.3109/09593985.2013.862890

Cited by 12 publications

(15 citation statements)

References 43 publications

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“…In contrast to large muscles, the small muscles of the hand are well suited for clinical studies focusing on (chronic) disease-related changes in neuromuscular function ( Sheean et al, 1997 ; Thomas, 1997 ; de Ruiter et al, 2001 ; Thickbroom et al, 2006 ; Steens et al, 2012 ; Murray et al, 2014 ; Prak et al, 2015 ; Santarnecchi et al, 2015 ; Arnold et al, 2017 ). Previously we examined force decline during sustained maximal contractions with the index finger abductor muscle (the first dorsal interosseous, FDI).…”

Section: Introductionmentioning

confidence: 99%

Age- and Sex-Related Differences in Motor Performance During Sustained Maximal Voluntary Contraction of the First Dorsal Interosseous

et al. 2018

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Age and sex affect the neuromuscular system including performance fatigability. Data on performance fatigability and underlying mechanisms in hand muscles are scarce. Therefore, we determined the effects of age and sex on force decline, and the mechanisms contributing to force decline, during a sustained isometric maximal voluntary contraction (MVC) with the index finger abductor (first dorsal interosseous, FDI). Subjects (n = 51, age range: 19–77 years, 25 females) performed brief and a 2-min sustained MVC with the right FDI. Abduction force and root mean squared electromyographic activity (rms-EMG) were recorded in both hands. Double-pulse stimulation was applied to the ulnar nerve during (superimposed twitch) and after (doublet-force) the brief and sustained MVCs. Compared to females, males were stronger (134%, p < 0.001) and exhibited a greater decline in voluntary (difference: 8%, p = 0.010) and evoked (doublet) force (difference: 12%, p = 0.010) during and after the sustained MVC. Age did not affect MVC, force decline and superimposed twitch. The ratio between the doublet- and MVC-force was greater in females (0.33, p = 0.007) and in older (0.38, p = 0.06) individuals than in males (0.30) and younger (0.30) individuals; after the sustained MVC this ratio increased with age and the increase was larger for females compared to males (p = 0.04). The inadvertent contralateral, left force and rms-EMG activity increased over time (2.7–13.6% MVC and 5.4–17.7% MVC, respectively). Males had higher contralateral forces than females (p = 0.012) and contralateral force was higher at the start of the contralateral contraction in older compared with young subjects (difference: 29%, p = 0.008). In conclusion, our results suggest that the observed sex-differences in performance fatigability were mainly due to differences in peripheral muscle properties. Yet the reduced amount of contralateral activity and the larger difference in evoked versus voluntary force in female subjects indicate that sex-differences in voluntary activation should not be overlooked. These data obtained in neurological healthy adults provides a framework and help the interpretation and referencing of neurophysiological measures in patients suffering from neuromuscular diseases, who often present with symptoms of performance fatigability.

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Section: Introductionmentioning

confidence: 99%

Age- and Sex-Related Differences in Motor Performance During Sustained Maximal Voluntary Contraction of the First Dorsal Interosseous

et al. 2018

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“…Other impairments such as sleep disturbances, concentration difficulties, memory difficulties, and mood swings are also reported and may be directly or indirectly associated with the prior experience of polio [1,3,6,7]. The new or increased impairments can lead to activity limitations and participation restrictions and thus have an impact on life satisfaction [5,8,9].…”

Section: Introductionmentioning

confidence: 99%

Test‐Retest Reliability of the Self‐Reported Impairments in Persons With Late Effects of Polio (SIPP) Rating Scale

Brogårdh

Lexell

2015

PM&R

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“…Previous studies have found that increased disability following LEoPs is associated with decreased life satisfaction compared to healthy persons. 3,7,8 Life satisfaction is related to concepts such as happiness and well-being, and can be described as how a person perceives his or her life situation. 9 The level of satisfaction is affected by the person's expectations with life and thereby reflects how well aspirations and achievements are met.…”

Section: Introductionmentioning

confidence: 99%

Life Satisfaction in Persons With Late Effects of Polio: A Test‐Retest Reliability Study

Ekstrand

Lexell

Brogårdh

2020

PM&R

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Background: The Life Satisfaction Questionnaire (LiSat-11), including one global item and 10 domain-specific items, is used to evaluate life satisfaction in persons with the late effects of polio (LEoPs). However, there is a lack of knowledge about its psychometric properties. Objective: To evaluate the test-retest reliability of the LiSat-11 and the associations between the global and domain-specific items in persons with LEoPs. Design: A test-retest design, where data were collected by a postal survey. Setting: University Hospital, Outpatient Clinic. Participants: A cross-sectional sample of persons (20 women and 31 men; mean age 72 years) with LEoPs. Main Outcome Measurements: LiSat-11, assessing how satisfied a person is with different aspects of life, such as life as a whole, vocation, economy, leisure, contacts with friends and acquaintances, sexual life, activities of daily living (ADLs), family life, partner relationship, somatic health, and psychological health. Methods: LiSat-11 was administered on two occasions, 2 weeks apart. The test-retest reliability was evaluated by Kappa statistics, the percent agreement (PA), and the Svensson rank-invariant method. The association between the items was evaluated with the Spearman rank correlation coefficient (rho). Results: The Kappa coefficients showed good to excellent agreement (0.64-0.90) and the PA ≤1 point was high (>92%) for all items. No items showed any systematic or random disagreements according to the Svensson method. All domain-specific items correlated significantly with the global item "Life as a whole" (P < .01; rhos 0.41 to 0.75). Conclusions: LiSat-11 is reliable for assessing life satisfaction in persons with LEoPs. The global item "Life as a whole" is useful as an overall measure but cannot fully replace the information obtained from the domain-specific items of LiSat-11.

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Assessment of subjective and motor fatigue in Polio survivors, attending a Postpolio clinic, comparison with healthy controls and an exploration of clinical correlates

Cited by 12 publications

References 43 publications

Age- and Sex-Related Differences in Motor Performance During Sustained Maximal Voluntary Contraction of the First Dorsal Interosseous

Age- and Sex-Related Differences in Motor Performance During Sustained Maximal Voluntary Contraction of the First Dorsal Interosseous

Test‐Retest Reliability of the Self‐Reported Impairments in Persons With Late Effects of Polio (SIPP) Rating Scale

Life Satisfaction in Persons With Late Effects of Polio: A Test‐Retest Reliability Study

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