scholarly journals Periodontal Disease and Grip Strength among Older Adults

Geriatrics ◽  
2020 ◽  
Vol 5 (3) ◽  
pp. 46
Author(s):  
Vinish Aravindakshan ◽  
Faisal F. Hakeem ◽  
Wael Sabbah
Keyword(s):  
Grip Strength ◽  
Handgrip Strength ◽  
Oral Health Status ◽  
Case Definition ◽  
Linear Regression Models ◽  
The Mean ◽  
Maximum Grip Strength ◽  
And Gender ◽  
Definition Of ◽  
Maximum Grip

Objective: The aim of this research was to assess the association between periodontitis and grip strength among older American adults. Methods: Data from the National Health and Nutrition Examination Survey 2011/2012 and 2013/2014 were used. Oral health status and hand grip strength were clinically assessed. Three outcome variables were used: (1) handgrip strength <30 kg for men, <20 kg for women; (2) handgrip strength <26 kg for men, <16 kg for women; and (3) mean maximum grip strength. The main exposure was the case definition of periodontitis. Logistic and linear regression models were constructed for grip strength definitions and the mean grip strength, respectively, adjusting for covariates. Results: The study included 1953 participants. The mean age was 68.5 years, and 47.2% were males. The prevalence of low grip strength (<30 kg for men, <20 kg for women) was 7.4% in men and 13.6% in women. Periodontitis was significantly associated with grip strength (OR 1.53, 95% CI: 1.03, 2.27) in the unadjusted model. Periodontitis was also significantly associated with maximum grip strength (Coefficient 1.05, 95% CI −1.99, −0.09) in a model adjusted for age and gender. However, in all the fully adjusted models there was no statistically significant association between periodontitis and grip strength. Conclusion: Low grip strength appeared to be more common among persons with moderate/severe periodontitis. The observed association is probably attributed to older age and common risk factors for periodontitis and frailty.

scholarly journals Evaluation of Effect of Handle Vibration Diesel-Fueled Single-Axle Tractor on Handgrip Strength of Operators

2020 ◽  
Author(s):  
Siraj Busse ◽  
Anthony Sinclair ◽  
Diresibachew Wondimu ◽  
Daniel Reda
Keyword(s):  
Grip Strength ◽  
Handgrip Strength ◽  
Major Effect ◽  
Vibration Exposure ◽  
Dominant Hand ◽  
Average Operator ◽  
Before And After ◽  
The Mean ◽  
Maximum Grip Strength ◽  
Maximum Grip

Abstract Background: The transmission of vibration from a single-axis tractor to the human body is determined by its dynamic response; this, in turn, depends on the physical characteristics of a person's hand, the contact area, the strength of the grip, the push force of the tractor, and the position. The purpose of this work was to measure and evaluate handgrip strength and fatigue resistance for operators of a 15 horsepower single-axle tractor before and after vibration exposure. Methods: Grip strength of dominant and non-dominant hands before and after 30 minutes of tilling operations was measured and recorded. The operators performed tilling tasks with the tractor in third gear, while the vibration levels were measured at the tractor handle along with the vertical, forward, and transverse directions. Results: The average operator grip strength was 33.6 ± 2.7 and 26.3 ± 3.3 kg and the average overall grip strength declined from 39.7 to 29.31 kg, although the average fatigue strength was 27.6 and 26.5 seconds for the dominant hand before and after vibration exposure. For the non-dominant hand, the mean grip strength measured was 28.7±2.9 and 23.1±1.9 kg and the maximum grip strength was 32.79 and 26.25, while fatigue was 29.76 and 22 seconds before and after tilling respectively.Conclusion: The average reduction in grip strength suggest considerable differences in grip strength for dominant and non-dominant hands of single axle tractor operators and shows that vibration transmitted from the single axle tractor handle has a major effect on the operators.

Test–retest reliability of grip strength measurement in full elbow extension to evaluate maximum grip strength

2012 ◽  
Vol 38 (2) ◽  
pp. 183-186 ◽  
Author(s):  
C. Savva ◽  
C. Karagiannis ◽  
A. Rushton
Keyword(s):  
Grip Strength ◽  
Elbow Extension ◽  
Strength Measurement ◽  
Retest Reliability ◽  
Maximum Grip Strength ◽  
Grip Strength Measurement ◽  
Test Retest Reliability ◽  
Standard Error Of Measurement ◽  
Healthy Participants ◽  
Maximum Grip

The objective of this study was to investigate the test–retest reliability of measurement of grip strength in full elbow extension. The grip strengths of 19 healthy participants were measured using the Jamar dynamometer by the same rater on two occasions with an interval of 7 days between measures. Test–retest reliability of grip strength measurement was excellent in full elbow extension and associated with low values of standard error of measurement and small variations in the differences between the two measurements in both testing sessions.

488 GRIP STRENGTH FROM MIDLIFE AS AN INDICATOR OF LATER-LIFE COGNITION AND BRAIN HEALTH: EVIDENCE FROM A BRITISH BIRTH COHORT

2021 ◽  
Vol 50 (Supplement_2) ◽  
pp. ii5-ii7
Author(s):  
Q Dercon ◽  
J Nicholas ◽  
S-N James ◽  
J Schott ◽  
M Richards
Keyword(s):  
Grip Strength ◽  
Birth Cohort ◽  
Reference Group ◽  
Later Life ◽  
White Matter Hyperintensity ◽  
Birth Cohort Study ◽  
Brain Health ◽  
Average Maximum ◽  
Maximum Grip Strength ◽  
Maximum Grip

Abstract Introduction Grip strength is an objective measure of physical function with potential predictive value for health in ageing populations. We aimed to assess whether levels and changes in grip strength from midlife predicted later-life brain health and cognition. Methods 446 participants in an ongoing British birth cohort study, the MRC National Survey of Health and Development (NSHD), had their maximum grip strength measured at ages 53, 60–64, and 69, and underwent neuroimaging as part of its neuroscience sub-study, Insight 46, at 69–71. A group-based trajectory model identified latent groups of individuals in the whole NSHD cohort with below- and above-average grip strength over time, plus a reference group. Trajectory group membership, plus standardised grip strength levels and change from age 53, were each related to MRI-derived measures of whole-brain volume (WBV) and white-matter hyperintensity volume (WMHV), plus several cognitive tests. Models were adjusted for sex, body size, head size (where appropriate), sociodemographics, and behavioural and vascular risk factors. Results Consistently below-average grip strength from midlife was associated with lower WBV and non-verbal reasoning ability at age 69–71 (e.g. low group WBV vs. reference group β = −13.38 cm^3; 95% CI = (−24.12 cm^3, −2.64 cm^3); p = 0.015). There was some accompanying evidence that above-average maximum grip strength showed a positive association with WBV, which was more pronounced in female participants (high group female WBV vs. reference group β = 18.30 cm^3; 95% CI = (1.34 cm^3, 35.29 cm^3); p = 0.034). Steeper than average declines in grip strength between 53 and 69 were additionally weakly associated with an estimated 10% higher WMHV at age 69–71 (β = 1.10, 95% CI = (1.00, 1.22); p = 0.053). Conclusion This study provides preliminary evidence that tests of maximum grip strength may have value in predicting brain health. Future work should assess how these observed differences relate to later-life negative health outcomes, and whether changes in grip strength reflect concurrent changes in brain structure and connectivity.

Grip strength feigning is hard to detect: an exploratory study

2017 ◽  
Vol 43 (2) ◽  
pp. 193-198 ◽  
Author(s):  
Jan Vollert ◽  
Carina Pasqualicchio ◽  
Mike Papenhoff ◽  
Burkhard Heitmann ◽  
Frank Müller ◽  
...  
Keyword(s):  
Grip Strength ◽  
Hand Function ◽  
Individual Case ◽  
Level Of Evidence ◽  
Rapid Exchange ◽  
Submaximal Effort ◽  
Maximum Grip Strength ◽  
Injured Patients ◽  
Healthy Participants ◽  
Maximum Grip

Detecting submaximal effort when testing grip strength is difficult. Research so far has focused on the discrimination between sincere and feigning healthy participants, whereas the clinically relevant distinction is between injured patients and feigning participants. The aim of our study was to compare rapid exchange grip and isometric grip strength testing in 41 participants feigning weakness with 39 patients with decreased hand function. Various parameters that describe grip strength were recorded and tested for differences between the groups. Only the maximum grip strength during rapid exchange grip was found to be significantly higher in feigning participants compared with patients, but this cannot be used for decision-making on an individual basis. We found no parameters that are useful for the detection of feigned weakness in an individual case. Level of evidence: III

Fractionated Reaction Time as a Function of Magnitude of Force in Simple and Choice Conditions

1997 ◽  
Vol 85 (2) ◽  
pp. 435-444 ◽  
Author(s):  
Masanobu Ito
Keyword(s):  
Reaction Time ◽  
Grip Strength ◽  
Choice Reaction Time ◽  
Peak Force ◽  
Constant Amount ◽  
Premotor Time ◽  
Force Reaction ◽  
The Subject ◽  
Maximum Grip Strength ◽  
Maximum Grip

The present study examined whether varying magnitude of force required to perform an isometric response influences fractionated reaction time in simple and choice conditions and whether reaction time and premotor time to initiate the response are shorter when force is selected freely by the subject than when it is selected by the experimenter. 20 subjects were required to react and produce a designated peak force as quickly and accurately as possible by squeezing a handle after a reaction signal. Four different magnitudes of force were 30, 50, and 70% of the maximum grip strength of the subjects and subject-selected magnitude of force. Reaction time and premotor time did not change across the range of forces examined in both simple and choice reaction-time conditions regardless of whether a desired force was selected by the experimenter or by the subject These findings suggest that programming an isometric response may require a constant amount of time.

UTILITY OF THE POWERBALL® IN THE INVIGORATION OF THE MUSCULATURE OF THE FOREARM

Hand Surgery ◽  
2008 ◽  
Vol 13 (02) ◽  
pp. 79-83 ◽  
Author(s):  
Sebastián Axel Balan ◽  
Marc Garcia-Elias
Keyword(s):  
Grip Strength ◽  
Grip Force ◽  
Muscle Endurance ◽  
Upper Limbs ◽  
Muscular Endurance ◽  
Maximum Grip Strength ◽  
Forearm Muscle ◽  
Jamar Dynamometer ◽  
Resting Period ◽  
Maximum Grip

In order to ascertain the utility of a 250 Hz NSD Powerball® gyroscope in increasing the maximum grip force and muscular endurance of the forearm, ten adults without pathology in their upper limbs exercised one forearm with the device during a period of one month. We evaluated grip strength and forearm muscle endurance with a Jamar dynamometer both at the end of the month as well as after a resting period of one month. There was a tendency (not statistically significant p = 0.054), for the volunteers to increase their maximum grip strength. There was also highly significant increase in muscle endurance (p = 0.00001), a gain that remained slightly unchanged after the rest. Because the gyroscope generates random multidirectional forces to the forearm, the reactive muscle contraction is likely to stimulate more efficient neuromuscular contro of the wrist, a conclusion which our work appears to validate. The use of Powerball® in forearm proprioception deficient patients is, therefore, justified.

Average versus Maximum Grip Strength: Which is more Consistent?

2004 ◽  
Vol 29 (1) ◽  
pp. 82-84 ◽  
Author(s):  
S. G. HAIDAR ◽  
D. KUMAR ◽  
R. S. BASSI ◽  
S. C. DESHMUKH
Keyword(s):  
Grip Strength ◽  
Average Method ◽  
Limits Of Agreement ◽  
Strength Assessment ◽  
Average Value ◽  
Maximum Value ◽  
Significant Difference ◽  
Maximum Grip Strength ◽  
Maximum Method ◽  
Maximum Grip

The average of three consecutive measurements is the most frequently used method for grip strength assessment. The purpose of this study was to compare the consistency of the maximum value with that of the average value of three consecutive measurements of grip strength. One hundred healthy volunteers participated in this study. Three measurements of grip strength were taken on two occasions separated by 2 weeks. For each hand, two average values and two maximum values were obtained. Ninety-five per cent limits of agreement for the average method were – 8.3 (−23%) to +7.2 (+20%) kg and for the maximum method were – 8.8 (−23%) to + 8 (+21%) kg. Both methods of grip strength assessment were found to be highly consistent with no statistically significant difference.

scholarly journals Prevalence and incidence of diagnosed hypertension in Alberta, Canada

2018 ◽  
Vol 3 (4) ◽  
Author(s):  
Hannah Holitzki ◽  
Hude Quan ◽  
Fiona Clement ◽  
Alex Leung ◽  
Zhiyang Liang
Keyword(s):  
Health Insurance ◽  
Survey Data ◽  
Population Level ◽  
Case Definition ◽  
Fiscal Year ◽  
Discharge Abstract Database ◽  
And Gender ◽  
Abstract Submission ◽  
Definition Of ◽  
Incident Cases

IntroductionThe prevalence of diagnosed hypertension in Canada is projected to increase despite the incidence rate decreasing. Previous work around the world has utilized survey data to provide estimates of prevalence and incidence. Administrative data is population-level, and may provide more reliable estimates of provincial prevalence and incidence than could be achieved using survey data.  Objectives and Approach To produce age and sex-specific prevalence and incidence estimates of diagnosed hypertension in Alberta from 2007 to 2015, To project estimates to the fiscal year of 2019/2020. Data from the Discharge Abstract Database, physician claims database, National Ambulatory Care Reporting System, and provincial health insurance registry will be linked using unique anonymous personal identifier and gender. A validated case definition of diagnosed hypertension for use in administrative datasets will be used to identify annual prevalent and incident cases from claims data. Obstetric cases will be excluded. The provincial health insurance registry will be used to estimate denominator values. ResultsResults of this analysis are not available for the time of abstract submission as the timeline for this analysis projects completion in April 2018. Conclusion/ImplicationsMaintained surveillance of diagnosed hypertension is important to inform health policy and spending decisions, to monitor efficacy of public health interventions, and to inform patient care. Furthermore, diagnosis guidelines have been updated since 2017. Providing estimates for the prevalence of diagnosed hypertension in Alberta five years into the future to compare to actual prevalence estimates may indicate whether changes in prevalence are due to actual changes in health status or to changes in diagnosis guidelines.

scholarly journals Grip strength from midlife as an indicator of later-life brain health and cognition: evidence from a British birth cohort

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Quentin Dercon ◽  
Jennifer M. Nicholas ◽  
Sarah-Naomi James ◽  
Jonathan M. Schott ◽  
Marcus Richards
Keyword(s):  
Grip Strength ◽  
Birth Cohort ◽  
Later Life ◽  
Cognitive Test ◽  
White Matter Hyperintensity ◽  
Brain Health ◽  
Time Points ◽  
Age Related ◽  
Maximum Grip Strength ◽  
Maximum Grip

Abstract Background Grip strength is an indicator of physical function with potential predictive value for health in ageing populations. We assessed whether trends in grip strength from midlife predicted later-life brain health and cognition. Methods 446 participants in an ongoing British birth cohort study, the National Survey of Health and Development (NSHD), had their maximum grip strength measured at ages 53, 60–64, and 69, and subsequently underwent neuroimaging as part of a neuroscience sub-study, referred to as “Insight 46”, at age 69–71. A group-based trajectory model identified latent groups of individuals in the whole NSHD cohort with below- or above-average grip strength over time, plus a reference group. Group assignment, plus standardised grip strength levels and change from midlife were each related to measures of whole-brain volume (WBV) and white matter hyperintensity volume (WMHV), plus several cognitive tests. Models were adjusted for sex, body size, head size (where appropriate), sociodemographics, and behavioural and vascular risk factors. Results Lower grip strength from midlife was associated with smaller WBV and lower matrix reasoning scores at age 69–71, with findings consistent between analysis of individual time points and analysis of trajectory groups. There was little evidence of an association between grip strength and other cognitive test scores. Although greater declines in grip strength showed a weak association with higher WMHV at age 69–71, trends in the opposite direction were seen at individual time points with higher grip strength at ages 60–64, and 69 associated with higher WMHV. Conclusions This study provides preliminary evidence that maximum grip strength may have value in predicting brain health. Future work should assess to what extent age-related declines in grip strength from midlife reflect concurrent changes in brain structure.

scholarly journals Psychological Well-being, Age and Gender can Mediate Soundscapes Pleasantness and Eventfulness: A large sample study

2020 ◽  
Author(s):  
Mercede Erfanian ◽  
Andrew Mitchell ◽  
Francesco Aletta ◽  
Jian Kang
Keyword(s):  
Sound Source ◽  
Well Being ◽  
Psychological State ◽  
Linear Regression Models ◽  
Related Factors ◽  
Age And Gender ◽  
Psychological Well Being ◽  
The Mean ◽  
And Gender ◽  
The Impact

AbstractThere is a great deal of literature on contributing environmental factors of soundscape, the perception of the acoustic environment by humans in context. Yet the impact of some contextual and person-related factors is largely unknown. From the questionnaire, adapted from ISO12913-2 and the WHO-5 well-being index, three questions arose: are there differences in Pleasantness and Eventfulness of soundscape among different acoustic environments; are high levels of psychological well-being associated with increased Pleasantness and Eventfulness ratings; and is soundscape Pleasantness and Eventfulness consistent among different age and gender groups? The sample comprised 1180 individual questionnaires, 621 females (52.6%), 532 males (45.1%), mean age 34.95 years ± 15.62, collected from eleven urban locations. Hierarchical clustering analysis was done on the mean of each sound source question for each survey location resulting in three clusters of locations based on sound source composition: Natural-dominant, Traffic-dominant and Mixed-sources. A Kruskal-Wallis was conducted to compare the mean Pleasantness and Eventfulness scores of the three clusters, demonstrating that the soundscape assessment was significantly different depending on sound source composition. Multiple linear regression models were used to analyse the relationship between psychological well-being, age, and gender with soundscape Pleasantness and Eventfulness. Our results indicated first that the positive psychological state was associated with Pleasantness in the all-locations and mixed-sources clusters, and with Eventfulness in the traffic-dominant cluster. Secondly, while age was linked to Pleasantness in all clusters it was merely associated with the Eventfulness in the all-locations cluster. Lastly, gender was associated with Pleasantness only in the all-locations cluster. These findings offer empirical grounds for developing theories of the contextual factors on soundscape.

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