A Possible Proximity Effect on Human Grip Strength: An Attempted Replication

1989 ◽  
Vol 68 (1) ◽  
pp. 157-158 ◽  
Author(s):  
William G. Braud
Keyword(s):  
Statistical Analysis ◽  
Grip Strength ◽  
Proximity Effect ◽  
Equal Weight ◽  
Dominant Hand ◽  
Double Blind ◽  
Hand Dynamometer ◽  
The Subject ◽  
Chart Recording ◽  
Attempted Replication

A double-blind experiment with 50 adults was conducted to replicate a finding that proximity to sugar reduces human grip strength. Grip strength of the dominant hand was measured by a chart-recording hand dynamometer for 12 trials. For half of the trials, the subject held an opaque, sealed bottle containing sugar; for half of the trials, the subject held a control bottle of equal weight containing sand. Statistical analysis indicated no significant effect of held substance upon grip strength.

Características antropométricas en manos y fuerza máxima de agarre de trabajadores en una región de México: Caso de estudio hombres

2019 ◽  
pp. 1-9
Author(s):  
Mauricio López-Acosta ◽  
José Manuel Velarde-Cantú ◽  
Allán Chacara-Montes ◽  
Ernesto Ramírez-Cárdenas
Keyword(s):  
Statistical Analysis ◽  
Grip Strength ◽  
Dominant Hand ◽  
Anthropometric Measures ◽  
Working Adults ◽  
A Value ◽  
Anthropometric Characteristics ◽  
Maximum Grip Strength ◽  
Maximum Grip ◽  
Descriptive Statistical Analysis

The present article studies the anthropometric variables of the hand for a sample of 100 working adults whose ages were between 18 and 60 years, located in the State of Sonora, Mexico. In total, 26 anthropometric measures and the maximum grip strength in the dominant and non-dominant hand were considered. A descriptive statistical analysis was carried out for the measurements taken; In addition, a statistical analysis was performed to determine the correlation between the anthropometric characteristics and the maximum grip strength in the dominant hand. It was found that the age group with the strongest grip was 30-39 years with a value of 51.77 kg in the dominant hand.

DEVELOPMENT OF ARDUINO-BASED HAND DYNAMOMETER ASSISTIVE DEVICE

2016 ◽  
Vol 16 (03) ◽  
pp. 1650033 ◽  
Author(s):  
NORAZMIRA MD NOH ◽  
NAHRIZUL ADIB KADRI ◽  
JULIANA USMAN
Keyword(s):  
Grip Strength ◽  
Force Sensor ◽  
Hand Grip Strength ◽  
Assistive Device ◽  
Dominant Hand ◽  
Hand Grip ◽  
Percentage Difference ◽  
Daily Task ◽  
Hand Dynamometer ◽  
Sd Card

The aim of this study is to develop a hand dynamometer that can act as a rehabilitation device by acquiring quantified data to enhance the power of hand grip strength. On the whole, patient that suffers from the hand injury is directly exposed to intricacy when performing daily task. Therefore, many hand aids have been developed to overcome the problem. A typical hand assistive device is able to measure the hand grip strength, which eventually increases its functionality. Like hand dynamometer, it is used for regular screening of hand grip strength and also for the preliminary and ongoing assessment of patients with hand dysfunction or trauma. Strain gauge-based system transducer acts as the measurement system together with Arduino microcontroller for the instrumentation, communication and controlling applications. The integration of strain gauges with a transducer is called a load cell which also made up the overall of force sensor to obtain readings from the hand grip movement. Microcontroller will further use this information to store and analyze data in the SD card. The percentage difference observed between hands across the sample of 25 subjects support the 10% rule. An overall 10.74% difference was found when combined dominant and non-dominant hand strength scores for all subjects were observed.

Relação entre a força de preensão palmar máxima e destreza dos dedos em adultos saudáveis: Implicações para a avaliação da função manual

1969 ◽  
Vol 6 (3) ◽  
Author(s):  
Kauã C. de A. Lima ◽  
Roberto Q. Santos ◽  
Paulo Barbosa de Freitas
Keyword(s):  
Grip Strength ◽  
Grip Force ◽  
Hand Function ◽  
Strength Test ◽  
Dominant Hand ◽  
Hand Dexterity ◽  
Hand Dynamometer ◽  
Maximum Grip Strength ◽  
The Relationship ◽  
Maximum Grip

Abstract: Successful object manipulation is fundamental to maintaining an independent lifestyle and, as a result, several tests have been used to assess hand function. The maximum grip strength test is one of the most used, but its validity could be questioned because, among other aspects, we rarely use maximum grip strength (GSMax) during daily manipulation task. Thus, the main aim of this study was to examine the relationship between GSMax and the performance in a hand dexterity task. Twenty-four healthy adults (12 males) between 20 and 39 years of age performed the nine hole peg test (9-HPT) and the maximum grip strength test (Jamar® hydraulic hand dynamometer). The results revealed that males were stronger than females and dominant hand was stronger than non-dominant hand. Moreover, males and females had similar performance in the 9-HPT, but both groups had better performance when using their dominant hand compared to their non-dominant one. Finally, and most importantly, the results revealed that there was no significant relationship between GSMax and individuals’ performance in the 9-HPT. The lack of relationship between them indicates that digits dexterity assessed by 9-HPT is not dependent on maximum grip strength exerted by the hand, suggesting that the evaluation of hand function should not be only based upon the results of the maximum grip strength test. Consequently, other grip strength related measurements (e.g., rate of grip force development, grip force control) should be taken into consideration for hand function assessment.Key Words: Upper limb, evaluation, motor skill, force. 

scholarly journals Relationship between maximum grip strength and digits dexterity: Implications for hand function assessment

2011 ◽  
Vol 6 (3) ◽  
pp. 1-6
Author(s):  
Roberto Q. Santos ◽  
Kauê C. de A. Lima ◽  
Paulo B. de Freitas
Keyword(s):  
Grip Strength ◽  
Grip Force ◽  
Hand Function ◽  
Strength Test ◽  
Dominant Hand ◽  
Hand Dexterity ◽  
Hand Dynamometer ◽  
Maximum Grip Strength ◽  
Maximum Grip ◽  
Function Assessment

The main aim of this study was to examine the relationship between GS Max and the performance in a hand dexterity task. Twenty-four healthy adults (12 males) between 20 and 39 years of age performed the nine hole peg test (9-HPT) and the maximum grip strength test (Jamar ® hydraulic hand dynamometer). The results revealed that males were stronger than females and dominant hand was stronger than non-dominant hand. Moreover, males and females had similar performance in the 9-HPT, but both groups had better performance when using their dominant hand compared to their non-dominant one. Finally, and most importantly, the results revealed that there was no significant relationship between GS Max and individuals’ performance in the 9-HPT. The lack of relationship between them indicates that digits dexterity assessed by 9-HPT is not dependent on maximum grip strength exerted by the hand, suggesting that the evaluation of hand function should not be only based upon the results of the maximum grip strength test. Consequently, other grip strength related measures (e.g., rate of grip force development, grip force control) should be taken into consideration for hand function assessment.

Assessment of small businesses activities in Ukraine

2019 ◽  
pp. 40-47
Author(s):  
Igor Ponomarenko ◽  
Kateryna Volovnenko
Keyword(s):  
Comparative Analysis ◽  
Statistical Analysis ◽  
Small Business ◽  
Small Businesses ◽  
Government Agencies ◽  
Small Enterprises ◽  
The Subject ◽  
Business Entities ◽  
The Impact ◽  
Micro Enterprises

The subject of the research is a set of approaches to the statistical analysis ofthe activities of small business entities in Ukraine, including micro-enterprises. The purpose of writing this article is to study of the features of functioningof small business entities in Ukraine. Methodology. The research methodology isto use a system-structural and comparative analysis (to study the change in thenumber of small enterprises by major components); monographic (when studyingmethods of statistical analysis of small businesses); economic analysis (when assessing the impact of small business entities on socio-economic phenomena andprocesses in Ukraine). The scientific novelty consists to determine the features ofthe functioning of small businesses in Ukraine in modern conditions. The influenceof the activities of the main socio-economic and political indicators on the activities of small enterprises in recent periods of time has been identified. It has beenestablished that there is flexibility in the development of strategies by small businesses in conditions of significant competition, which makes it possible to quicklyrespond to changing situations in specific markets. Conclusions. The use of acomprehensive statistical analysis of small businesses functioning in Ukraine willallow government agencies to develop a set of measures to optimize the activitiesof these enterprises, which ultimately will positively affect the strengthening oftheir competitiveness and will contribute to the growth of the national economicsystem.

التغير المناخي واثره في المقنن المائي لمحصول العنب في محافظة ديالى

2019 ◽  
Vol 1 (34) ◽  
pp. 391-422
Author(s):  
اشواق حسن حميد صالح
Keyword(s):  
Climate Change ◽  
Statistical Analysis ◽  
Wind Speed ◽  
Extreme Temperature ◽  
Solar Brightness ◽  
The Subject ◽  
Climate Station ◽  
The Times ◽  
High Level ◽  
Very High

Climate change and its impact on water resources is the problem of the times. Therefore, this study is concerned with the subject of climate change and its impact on the water ration of the grape harvest in Diyala Governorate. The study was based on the data of the Khanaqin climate station for the period 1973-2017, (1986-2017) due to lack of data at governorate level. The general trend of the elements of the climate and its effect on the water formula was extracted. The equation of change was extracted for the duration of the study. The statistical analysis was also used between the elements of the climate (actual brightness, normal temperature, micro and maximum degrees Celsius, wind speed m / s, relative humidity% The results of the statistical analysis confirm that the water ration for the study area is based mainly on the X7 evaporation / netting variable, which is affected by a set of independent variables X1 Solar Brightness X4 X5 Extreme Temperature Wind Speed ​​3X Minimal Temperature and Very High Level .

Grip Strength of Cerebral Palsied

1978 ◽  
Vol 20 (6) ◽  
pp. 741-744 ◽  
Author(s):  
A. R. Bazar
Keyword(s):  
Grip Strength ◽  
Dominant Hand ◽  
Male And Female

Grip strength of 120 cerebral palsied and 136 able-bodied was measured to establish comparative values. The cerebral-palsied male and female had average grip strength of 228 N and 171 N in the dominant hand, respectively. The corresponding values for able-bodied male and female were 505 N and 308 N, respectively.

154 The Feasibility of Assessing Sarcopenia Among Older People with Arm Fracture Using Different Criteria

2021 ◽  
Vol 50 (Supplement_1) ◽  
pp. i12-i42
Author(s):  
K Ibrahim ◽  
M A Mullee ◽  
G Lily Yao ◽  
S Zhu ◽  
M Baxter ◽  
...  
Keyword(s):  
Older People ◽  
Grip Strength ◽  
Sensitivity And Specificity ◽  
Gait Speed ◽  
Speed Test ◽  
Increased Risk ◽  
European Working ◽  
Hand Dynamometer ◽  
Risk Of Falls ◽  
And Gender

Abstract Introduction Osteoporosis and sarcopenia often co-exist (osteo-sarcopenia) and both are associated with increased risk of falls and fractures. Early identification and treatment of sarcopenia among older people with fragility arm fractures could prevent further fractures. This study evaluated the feasibility of assessing sarcopenia in a fracture clinic. Methods People aged 65+ years with arm fracture attending fracture clinics in one acute trust were recruited. Sarcopenia was assessed using gait speed, grip strength with unfractured arm (hand dynamometer using appropriate cut off adjusted for age and gender), skeletal muscle mass index SMI (Bioimpedance BIA), SARC-F questionnaire, the European Working Group on Sarcopenia in Older People (EWGSOP) I and II criteria. The sensitivity and specificity of each measure was calculated against the EWGSOP II criteria as the standard reference. Results 100 patients (Mean age 75 years±7.2; 80 female) were recruited. Sarcopenia was identified among 4% (EWGSOP I), 5% (SMI), 13% (EWGSOP II), 16% (gait speed test), 18% (SARC-F) and 39% (grip strength) and was more prevalent among men. SARC-F had the best sensitivity and specificity (100% and 96% respectively) when compared to the EWGSOP II criteria. Sensitivity and specificity for the remaining measures were respectively (100%, 71%) for grip strength, (75%, 94%) for gait speed, (25%, 97%) with SMI and (25%, 99%) for EWGSOP I. Time needed to complete the assessments was 1–2 minutes for gait speed, grip strength and SARC-F; five minutes for BIA test, and nine minutes when EWGSOP I and II criteria were applied. Data were complete for grip strength and SARC-F. Missing data was reported among 2% for gait speed, 8% for BIA test, 8% for EWGSOP II and 10% for EWGSOP I. Conclusion It was feasible to assess sarcopenia in fracture clinics and SARC-F was a quick, simple and sensitive tool suitable for routine use.

Diclofenac Sodium Gel in Patients with Primary Hand Osteoarthritis: A Randomized, Double-blind, Placebo-controlled Trial

2009 ◽  
Vol 36 (9) ◽  
pp. 1991-1999 ◽  
Author(s):  
ROY D. ALTMAN ◽  
RENÉE-LILIANE DREISER ◽  
CHESTER L. FISHER ◽  
WALTER F. CHASE ◽  
DONATUS S. DREHER ◽  
...  
Keyword(s):  
Disease Activity ◽  
Pain Intensity ◽  
Primary Outcome ◽  
Controlled Trial ◽  
Diclofenac Sodium ◽  
Global Rating ◽  
Hand Osteoarthritis ◽  
Dominant Hand ◽  
Double Blind ◽  
Secondary Outcomes

Objective.To measure the efficacy and safety of diclofenac sodium gel in patients with primary hand osteoarthritis (OA).Methods.In a randomized, double-blind, placebo-controlled trial, men and women aged ≥ 40 years diagnosed with primary OA in the dominant hand were randomly assigned to self-apply topical 1% diclofenac sodium gel (Voltaren® Gel) (n = 198) or vehicle (n = 187) to both hands 4 times daily for 8 weeks. Primary outcome measures included OA pain intensity (100-mm visual analog scale), total Australian/Canadian Osteoarthritis Hand Index (AUSCAN) score, and global rating of disease activity at 4 and 6 weeks. Secondary outcomes included onset of efficacy in Weeks 1 and 2, durability of efficacy at 8 weeks, measures of disease activity in the dominant hand, pain intensity in the non-dominant hand, AUSCAN subindices, end of study rating of efficacy, and Osteoarthritis Research Society International response criteria.Results.Diclofenac sodium gel decreased pain intensity scores by 42%–45%, total AUSCAN scores by 35%–40%, and global rating of disease by 36%–40%. Significant differences favoring diclofenac sodium gel over vehicle were observed at Week 4 for pain intensity and AUSCAN, with a trend for global rating of disease activity. At Week 6, diclofenac sodium gel treatment significantly improved each primary outcome measure compared with vehicle. Secondary outcomes generally supported the primary outcomes. The most common treatment-related adverse event (AE) was application-site paresthesia. Most AE were mild. No cardiac events, gastrointestinal bleeding, or ulcers were reported.Conclusion.Topical diclofenac sodium gel was generally well tolerated and effective in primary hand OA. (NCT ID: NCT00171665)

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