scholarly journals Hand grip strength in healthy young and older Brazilian adults:

Kinesiology ◽  
2017 ◽  
Vol 49 (2) ◽  
pp. 208-216 ◽  
Author(s):  
Rafael Santos Neves ◽  
Agnaldo José Lopes

Hand grip strength (HGS) is important not only in its own right, but as an indicator of overall body strength and future outcomes as well. As we have found no studies on the HGS predictive models including Brazilian adults younger than 50 years of age, we aimed to develop a novel predictive equation using demographic and anthropometric attributes for subjects aged between 18 and 71 years. This is a cross-sectional study in which 203 (105 women) apparently healthy young and older adults were evaluated. A hydraulic dynamometer was used to measure HGS, according to the American Society of Hand Therapists recommendations. Several models were tested using age, body mass (W), body height (H), body mass index (BMI), level of physical activity (IPAQ) and gender as explanatory variables. Automated variable selection using the forward stepwise method was applied. The overall performance measures of the regression consisted of the R2 value adjusted for the number of variables retained in the proposed model, as well as of the standard error of the difference. Regression’s diagnosis using Pearson’s correlation coefficient, multicollinearity assessment and analysis of residuals were also performed to verify specific performance of the model. Statistical significance was considered at p<.05 for all analyses. Regarding the dominant (D) body side, the adjusted R2 value obtained by the stepwise method was .683. The variables age and IPAQ classification did not significantly increase the adjusted R2 value and therefore were excluded from the model (p>.100). For the non-dominant body side (ND), the adjusted R2 was .640. The final prediction models for the dominant body side was HGSPD=20.108×H+0.083×W+13.265×sexmale=1−8.737, whereas for the non-dominant body side it was HGSPND= 9.23×H+0.086×W+14.671×sexmale=1+5.904. Simple personal attributes, such as gender, body height and body mass can predict the expected values of HGS of the dominant and non-dominant upper limbs for Brazilian adults between 18 and 71 years.

2021 ◽  
Vol 18 (1) ◽  
pp. 1-7
Author(s):  
Heidy Heidy ◽  
Tena Djuartina ◽  
Robi Irawan

Introduction: An individual’s overall muscle strength is commonly assessed by a power grip measurement, a reliable indicator of functional capacity and physical condition. The development of muscle parallels the changes of body composition during growth. Aim of this study is to examine the correlationship between hand grip strength and anthropometric. Methods: This cross-sectional study involved 76 male students of Dhammasavana School, aged between 12 – 16 years old, North Jakarta. Hand grip strength was examined using a digital dynamometer on the dominant side. Statistical analysis was computed using SPSS ver. 15.0 program with Spearman correlations test. Significance was set at p<0.05. Results: Dominant hand grip strength was found to have significant (p<0.05 - 0.001) positive correlation with height (r=0.612), lower arm muscle-and-bone cross-sectional circumference and area (CSA) (r=0.553 and r=0.553 respectively), hand length (r=0.548), forearm length (r=0.540), age (r=0.520), weight (r=0.416), and forearm girth (r=0.376). Conclusion: No significant correlation between grip strength and body mass index was found. Positive correlations between the variables mentioned above conclude that the higher the value of the anthropometric measurements, the greater the strength generated in a power grip.


Author(s):  
Ratko Pavlović ◽  
Mensur Vrcić

The hands are anatomically specialized for manipulative tasks with different physical objects, where they can cope with certain loads with different forces and intensity. During various physical and sports activities, the hands produce the appropriate muscular force for gripping, which manifests as the hand grip's force. For this reason, hand grip strength (HGS) is recognized as a limiting factor in all manipulative activities performed by the cranial part of the body. The current research included a sample of 22 subjects, 16 male Body Height (BH=180.28±4.65cm); Body Weight (BW=80.05±9.96kg), Body Mass Index (BMI=24.61±2.74kg/m²) and 6 female subjects Body Height (BH=167.42±11.11cm); Body Weight (BW=64.80±10.09kg); Body Mass Index (BMI=23.02±1.57kg/m²) on the third year of study at the Faculty of Physical Education and Sports. This study aimed to determine the maximum isometric muscle force of the handgrip and differences between the same gender of students. A t-test for small samples was applied for data processing, and the relevant statistical parameters were calculated. The obtained t-test results confirmed statistically significant differences between the so-called dominant and non-dominant hands in male subjects (t=4.158; p<0.05) and female subjects (t=3.176; p<0.05). The obtained results of this research will be used for analytical and diagnostic purposes with a wide range of activities in the population of physical education and sports students (assessment of physical ability, trends, and tendencies to monitor and change abilities, influence on the implementation of certain curricula of some subjects studied at the faculty, etc.).


2020 ◽  
Vol 4 (2) ◽  
pp. 30-38
Author(s):  
Sakinah Harith ◽  
Nik Noor Sabiha Nik Mohd Zaib ◽  
Asheila Meramat

The objective of this study is to determine the relationship between nutritional status and hand grip strength among university students in Kuala Nerus and assess the relationships between BMI and physical activity with hand grip among students. University students (N = 80, mean age 21.8 ± 1.4 years) that included 36 males and 44 females were recruited using a convenient sampling technique from two universities which is Universiti Sultan Zainal Abidin (UniSZA) and Universiti Malaysia Terengganu (UMT) in a cross sectional study in  Kuala Nerus, Terengganu. Weight and height were measured and body mass index were calculated. Hand grip strength was measured too using Takei Digital Grip Strength Dynamometer. Furthermore, eating habits and level of physical activity were self-reported by the students using FFQ adopted from MANS and IPAQ questionnaire. The prevalence of underweight, normal weight, overweight and obesity were 7.4%, 66.3%, 17.5%, and 8.8% respectively. Male have slightly higher intake of calories, carbohydrates and fat with mean value of 2229 kcal, 295.3 g and 66.8 g respectively compared to female with calories of 2126 kcal, carbohydrates of 283 g and fat of 64.2 g. Meanwhile, most of the students involved in this study were classified as being moderately active (65%) followed by low physical activity (28.8%) and the least goes to the high physical activity category (6.2%). Furthermore, male subjects had a higher value of handgrip strength in both right (32.3 kg) and left hand (28.2 kg) as compared to female subjects that was 20.0 kg on the right hand while 17.6 kg on the left hand. The present study also showed that males had a higher percentage of overweight and obesity than females and there was a significant association between body mass index and gender as well as gender and hand grip strength (p<0.05). There were also significant association observed between BMI and physical activity with hand grip strength meanwhile, there is no association between dietary intakes (protein) with grip strength (p<0.05).  Keywords: eating habits, hand grip strength, BMI, physical activity


Cancers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 3363
Author(s):  
Kristian Kirkelund Bentsen ◽  
Olfred Hansen ◽  
Jesper Ryg ◽  
Ann-Kristine Weber Giger ◽  
Stefan Starup Jeppesen

The Geriatric 8 (G-8) is a known predictor of overall survival (OS) in older cancer patients, but is mainly based on nutritional aspects. This study aimed to assess if the G-8 combined with a hand-grip strength test (HGST) in patients with NSCLC treated with stereotactic body radiotherapy can predict long-term OS better than the G-8 alone. A total of 46 SBRT-treated patients with NSCLC of stage T1-T2N0M0 were included. Patients were divided into three groups: fit (normal G-8 and HGST), vulnerable (abnormal G-8 or HGST), or frail (abnormal G-8 and HGST). Statistically significant differences were found in 4-year OS between the fit, vulnerable, and frail groups (70% vs. 46% vs. 25%, p = 0.04), as well as between the normal and abnormal G-8 groups (69% vs. 39%, p = 0.02). In a multivariable analysis of OS, being vulnerable with a hazard ratio (HR) of 2.03 or frail with an HR of 3.80 indicated poorer OS, but this did not reach statistical significance. This study suggests that there might be a benefit of adding a physical test to the G-8 for more precisely predicting overall survival in SBRT-treated patients with localized NSCLC. However, this should be confirmed in a larger study population.


2019 ◽  
Vol 4 (3) ◽  
pp. 48 ◽  
Author(s):  
Regan Standing ◽  
Russ Best

Polo is an equestrian team sport consisting of four players per team, with level of play determined by cumulative player handicap (−2 to +10 goals), with a higher handicap denoting a better player. There is minimal literature investigating Polo players’ physical attributes, hence the understanding of the physical characteristics that may contribute to an improved handicap are unknown. This study sought to identify the relationship between pertinent strength measures (left and right hand grip strength; absolute and relative isometric mid-thigh pull) and reaction time in Polo handicap in 19 New Zealand Polo players, and ascertain whether handicap could be predicted by these measures. Correlation coefficients were expressed using R values, accompanying descriptors and 90% confidence intervals (C.I.). Variance explained was expressed via the R2 statistic, and statistical significance set at p < 0.05. Right hand grip strength, isometric mid-thigh pull values were found to significantly correlate to and explain variance within Polo player handicap (all moderate to large correlations; p < 0.05). Whereas left hand grip strength (R: 0.380; 90% C.I. −0.011 to 0.670) and reaction time (0.020; −0.372 to 0.406) were non-significant, moderate and trivial correlates and predictors of handicap respectively. Practically, these findings highlight the differing roles between rein and mallet hands of Polo players and emphasise the importance of a strong and stable platform when riding and striking the ball. Lack of association with reaction time may be explained in part by higher handicapped Polo players employing a more proactive approach to the game.


2020 ◽  
Vol 25 (1) ◽  
Author(s):  
Dalia Mohammed Mosaad ◽  
Amr Almaz Abdel-aziem ◽  
Ghada Ismail Mohamed ◽  
Enas Anwr Abd-Elaty ◽  
Karima Salah Mohammed

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