scholarly journals The Effect of Grip Span on Hand-Gripping Control Strength

2013 ◽  
Vol 10 ◽  
pp. 207-213
Author(s):  
Kun Hsi Liao
Keyword(s):  
Grip Strength ◽  
Task Design ◽  
Hand Grip Strength ◽  
Wide Spread ◽  
Hand Grip ◽  
Dependent Variables ◽  
Economic Developments ◽  
Different Diameters ◽  
Relationship Of ◽  
The Relationship

The economic developments and industrial progressions, the automatic operations were getting more wide-spread. However, currently in various operation occasions, the workers are still required to face how to operate all kinds of hand tooling and equipments. In the industrial cases, there were many opportunities to use hand grip strength to operate machines. Hand grip strength has received increasing attention from industrial engineers and ergonomic researchers. The relation between hand grip strength and tools grip span was important issues in ergonomics. Occasionally, it was little research to conduct. This study aims at exploring the relationship of tools grip span and hand grip strength. Seventy two subjects rose from volunteers participators, including 29 males and 43 females. Dependent variables were maximum volitional contraction and hand gripping control (HGC-70%, target value 70% MVC). Three different diameters of grip span were significance differences in maximum volitional contraction and hand gripping control. The study finds that the best diameter of tools grip span was 47.6 mm. The finding will be served as a reference for task design, instrument design as well as for disease protected for industrial staffs.

scholarly journals The Relationship of 2D:4D Ratio and Hand Grip Strength to the Incidence of Multiple Sclerosis

2018 ◽  
Vol 2 (3) ◽  
pp. 85-91 ◽  
Author(s):  
Hamid Arazi ◽  
◽  
Roghayeh Bavafa Birak Olia ◽  
Shahriar Nafissi ◽  
Nahid Beladi Moghadam ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Grip Strength ◽  
Hand Grip Strength ◽  
Hand Grip ◽  
Relationship Of ◽  
The Relationship

scholarly journals The Relationship of Hand Grip Strength with Bone Mineral Density and Vitamin D in Postmenopausal Women

2016 ◽  
Vol 22 (1) ◽  
pp. 1-6
Author(s):  
Münevver Serdaroğlu Beyazal ◽  
Gül Devrimsel ◽  
Ayşegül Küçükali Türkyılmaz ◽  
Murat Yıldırım
Keyword(s):  
Bone Mineral Density ◽  
Vitamin D ◽  
Grip Strength ◽  
Postmenopausal Women ◽  
Bone Mineral ◽  
Hand Grip Strength ◽  
Mineral Density ◽  
Hand Grip ◽  
Relationship Of ◽  
The Relationship

scholarly journals The Relationship of Digit Ratio (2D:4D) With Cerebral Lateralization and Grip Strength in Elite Swimmers

2018 ◽  
Vol 6 (4) ◽  
pp. 84
Author(s):  
Hakan Acar ◽  
Nebahat Eler
Keyword(s):  
Grip Strength ◽  
Hand Preference ◽  
Hand Grip Strength ◽  
Dominant Hand ◽  
Men And Women ◽  
Left Hand ◽  
Hand Grip ◽  
Elite Swimmers ◽  
The Relationship ◽  
Right And Left Hand

The index finger and the 4th finger ratio (2D:4D) is the indicator of the prenatal testosterone. The aim of this study is to investigate the relationship between 2D:4D, hand preference and hand grip strength in swimmers. A total of 80 elite swimmers, participated in the study. Height, body weight, body mass index (BMI), hand 2D:4D finger measurements and hand grip strength tests were performed for athletes. The hand preference was determined by the Oldfield questionnaire and it was evaluated according to the Geschwind score. The data were recorded in the SPSS 20 program and p<0.05 was considered as statistically significant. It was found that in both men and women, a negative correlation was found between right and left hand 2D:4D and both dominant (DHGS) and non-dominant hand grip strength (NDHGS) values. It was found that men had lower 2D:4D ratio than women. For both right and left handed, there was a statistically significant difference between the right and left hand 2D:4D ratios in both men and women (p<0.05) and the dominant hand (DH) 2D:4D ratios were found to be lower than non-dominant hand (NDH) 2D:4D ratios in both men and women (p<0.05)  It can be said that the 2D:4D ratios may be the effect of determining the hand preference, the grip strength and therefore the strength.

scholarly journals Is salivary cortisol moderating the relationship between salivary testosterone and hand-grip strength in healthy men?

2016 ◽  
Vol 17 (2) ◽  
pp. 188-194 ◽  
Author(s):  
Blair T. Crewther ◽  
Andrew G. Thomas ◽  
Steve Stewart-Williams ◽  
Liam P. Kilduff ◽  
Christian J. Cook
Keyword(s):  
Grip Strength ◽  
Salivary Cortisol ◽  
Hand Grip Strength ◽  
Healthy Men ◽  
Salivary Testosterone ◽  
Hand Grip ◽  
The Relationship

scholarly journals Morphological and Physical Profile of a Collegiate Water Skier

2021 ◽  
Vol 18 (3) ◽  
pp. 1150
Author(s):  
Michael A. Woodgate ◽  
Joshua J. Gann ◽  
William Hey ◽  
Hyun Chul Jung
Keyword(s):  
Physical Fitness ◽  
Grip Strength ◽  
Hand Grip Strength ◽  
Muscular Endurance ◽  
Regression Analyses ◽  
Hand Grip ◽  
Dependent Variables ◽  
Posterior Extension ◽  
Physical Tests ◽  
Physical Profile

This study aimed to examine morphological and physical fitness profile in collegiate water skiers and to identify the potential morphological and physical fitness factors, important for success in the slalom, trick, and jump events. Twenty collegiate water skiers were subject to anthropometric, somatotype measurements and a battery of physical tests inclusive of water ski-specific fitness variables. An independent t-test was used to compare the gender differences of dependent variables. Partial correlation and linear regression analyses were used to identify the factors that are associated with water ski performance. Male water skiers were lower in endomorphic component and better in power, speed, and cardiorespiratory fitness than female water skiers (p < 0.05). Somatotype such as mesomorphic (r = −0.48) and ectomorphic components (r = −0.60), sum of hand-grip strength (r = 0.98), and muscular endurance including posterior extension (r = 0.59) and left lateral flexion (r = 0.63) were significantly correlated with water skiing performance score (p < 0.05). The results of regression analyses showed that mesomorphic component (r2 = 0.24, p = 0.04), sum of hand-grip strength (r2 = 0.95, p = 0.001), and muscular endurance (r2 = 0.30, p = 0.03), appear to be crucial factors associated with water ski performance in slalom, trick (hands pass), and the jump events, respectively. Our study suggests that different morphological and fitness components are required to succeed in each tournament water skiing event. Coaches and athletes can utilize the battery of physical tests and design a specialized training regimen for each tournament water skiing event.

scholarly journals The relationship between smartphone usage duration (using smartphone’s ability to monitor screen time) with hand-grip and pinch-grip strength among young people: an observational study

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Ahmad Osailan
Keyword(s):  
Young People ◽  
Grip Strength ◽  
Screen Time ◽  
Hand Grip Strength ◽  
Monitor Screen ◽  
Young Males ◽  
Pinch Grip ◽  
Hand Grip ◽  
Grip Strength Measurement ◽  
The Relationship

Abstract Background The use of smartphones has become widely popular, especially among young people, for multiple purposes other than communication, including gaming and internet browsing. The hand and wrist weakness is one of the main complications associated with the increased use of smartphones. This weakness occurs due to the repetitive flexion and extension of the wrist, thumb, and fingers, leading to a significant musculoskeletal pathology. Little is known about the relationship between smartphone usage duration (using the phones ability to monitor screen time) and hand-grip, pinch-grip strength. Therefore, the study was aimed to investigate the association between smartphone usage duration and hand-grip, pinch-grip strength among young people. Methods One hundred young males volunteered to participate in the study. Participants were briefly examined for height and weight using a portable stadiometer and a digital scale. Hand-grip, pinch-grip strength measurement was performed using a hand-held dynamometer. Smartphones usage duration was obtained from the daily average screen time reported in the last seven days. Results Mean daily usage of smartphone among the participants was 7.8 ± 2.2. There was a weak significant inverse relationship between smartphone usage duration and hand-grip strength (r=-.22, p = .03) and pinch-grip strength (r=-.28, p = .004). Linear regression revealed that 18.8 % of the variance in hand-grip strength and 20.4 % of the variance in pinch-grip strength was explained by age, and smartphone usage duration, with the addition of BMI only to hand-grip strength (p’s < 0.00). Conclusions Prolonged use of smartphones was related to weaker hand-grip and pinch-grip. Despite the weak relationship, the study showed that smartphone usage duration might contribute as a factor along with age to hand muscles’ strength.

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