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

2020 ◽  
Author(s):  
Ahmad Osailan
Keyword(s):  
Young People ◽  
Grip Strength ◽  
Screen Time ◽  
Monitor Screen ◽  
Young Males ◽  
Pinch Grip ◽  
Hand Grip ◽  
Grip Strength Measurement ◽  
Musculoskeletal Pathology ◽  
The Relationship

Abstract BackgroundThe use of smartphones has become widely popular especially among young people for multiple purposes other than communication including gaming and internet browsing. The weakness of the hand and wrist is one of the main complications associated with the increase of use of smartphones. This weakness occurs due to the repetitive flexion and extension of the wrist, thumb and fingers which eventually could lead to a major 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. Methods100 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. ResultsMean daily usage of smartphone among the participants was 7.8 ± 2.2. There was a significant inverse relationship between smartphone usage duration and hand-grip strength (r=-.22, p=.03) and pinch-grip strength (r=-.28, p=.004). ConclusionProlonged use of smartphones is related to weaker hand-grip and pinch-grip. This may lead to future musculoskeletal pathologies such as carpal tunnel syndrome. Young people should be aware of the dangers of smartphones overuse.

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.

Relationship Between Muscle Strength Asymmetry and Body Sway in Older Adults

2018 ◽  
Vol 26 (3) ◽  
pp. 457-461 ◽  
Author(s):  
Hitoshi Koda ◽  
Yoshihiro Kai ◽  
Shin Murata ◽  
Hironori Osugi ◽  
Kunihiko Anami ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Grip Strength ◽  
Knee Extension ◽  
Body Sway ◽  
Adult Women ◽  
Gait Stability ◽  
Cutoff Value ◽  
Hand Grip ◽  
Strength Asymmetry ◽  
The Relationship

The purpose of this study was to investigate the relationship between muscle strength asymmetry and body sway while walking. We studied 63 older adult women. Strong side and weak side of knee extension strength, toe grip strength, hand grip strength, and body sway while walking were measured. The relationship between muscle strength asymmetry for each muscle and body sway while walking was evaluated using Pearson’s correlation coefficient. Regarding the muscles recognized to have significant correlation with body sway, the asymmetry cutoff value causing an increased sway was calculated. Toe grip strength asymmetry was significantly correlated with body sway. Toe grip strength asymmetry causing an increased body sway had a cutoff value of 23.5%. Our findings suggest toe grip strength asymmetry may be a target for improving gait stability.

scholarly journals The Relationship between Muscular Strength and Depression in Older Adults with Chronic Disease Comorbidity

2020 ◽  
Vol 17 (18) ◽  
pp. 6830
Author(s):  
Jae-Moo Lee ◽  
Edward J. Ryan
Keyword(s):  
Older Adults ◽  
Chronic Disease ◽  
Older People ◽  
Grip Strength ◽  
Muscular Strength ◽  
Statistical Tests ◽  
Ministry Of Health ◽  
Hand Grip ◽  
Prevalence Of Depression ◽  
The Relationship

Older adults with disease and disability are particularly vulnerable to experiencing more severe consequences of depression. The purpose of the present study is to investigate the relationship between disease comorbidities (number of disease: ND0, 1 disease: ND1 and 2 or more diseases: ND ≥ 2), hand grip strength (low HGS and high HGS), and the prevalence of depression in Korean older adults. Data from the living profiles of older people survey that was conducted by the ministry of health and welfare in Korea were utilized. Data for 6107 females and 4347 males were appropriate for statistical tests. The results demonstrated that depression was more prevalent as ND increased (p < 0.01). In addition, HGS appeared lower as ND increased in both male (p < 0.01) and female subjects (p < 0.01). Furthermore, relative to ND0 and low HGS, ND0 and high HGS showed a ~65% reduction in the prevalence of depression (p < 0.01). After adjusting for age, the prevalence of depression was reduced by ~60% in the subgroup with ND0 and high HGS relative to ND0 and low HGS (p < 0.01). These data demonstrate that muscular strength indices such as HGS may be useful when assessing depression in older adults. Further research in this area is warranted.

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 Facilitatory Effects of Kinesio Taping on Forearm Extensors in Improving Hand Grip and Pinch Grip Strength

2016 ◽  
Vol 4 (6) ◽  
Author(s):  
Saravanan Murugan ◽  
Patel Shruti ◽  
Patel Tejal ◽  
Prajapati Charul
Keyword(s):  
Grip Strength ◽  
Kinesio Taping ◽  
Pinch Grip ◽  
Hand Grip

scholarly journals Grip strength is associated with retinal and choroidal thickness in type 2 diabetes mellitus patients without retinopathy

2020 ◽  
Author(s):  
Zihan Qiu ◽  
Wei Wang ◽  
Yan Tan ◽  
Miao He ◽  
Lanhua Wang ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Grip Strength ◽  
Choroidal Thickness ◽  
Retinal Thickness ◽  
Diabetic Patients ◽  
Cross Sectional ◽  
Hand Grip ◽  
Cross Sectional Design ◽  
The Relationship

AbstractObjectiveTo determine the relationship between grip strength and retinal or choroidal thickness in Chinese patients with type 2 diabetes mellitus.DesignObservational study-cross-sectional design.Setting and ParticipantsThe study was conducted among diabetes patients without retinopathy registered in the community health system in Guangzhou, China.MeasuresGrip strength was measured twice for each hand with a dynamometer in kilograms (kg). The retinal and choroidal thickness in macular Early Treatment Diabetic Retinopathy Study (ETDRS) sectors were measured by commercial swept-source optical coherence tomography (SS-OCT; DRI OCT-2 Triton; Topcon, Tokyo, Japan).ResultsA total of 1,029 patients were included in the study. Both retinal thickness and choroidal thickness increased with the higher quartile of grip strength. Regression analyses indicated that the average retinal and choroidal thickness increased by 0.14 μm (95%CI: 0.03-0.25 μm, P=0.011) and 0.57 μm (95%CI: 0.03-1.11 μm, P=0.037) for each additional kg of grip strength following adjustment for age and gender. Further adjustments were made for axial length, HbA1c, length of time the patient had diabetes, insulin usage, height, weight and systolic and diastolic blood pressure, which resulted in an average retinal and choroidal thickness increase of 0.13 μm (95%CI: 0.02-0.24 μm, P=0.024) and 0.65 μm (95%CI: 0.13-1.16 μm, P=0.013) for each additional kg of grip strength. Consistent results were obtained in the analyses in ETDRS 9 sectors.ConclusionGreater hand grip strength was found to be significantly associated with thicker retinal and choroidal layers in diabetic patients. Grip strength may provide a useful indicator of retinal health in diabetic patients. Further studies are needed to determine directionality and causality, and to examine whether improving muscle strength has a positive effect on retinal and choroidal thickness.Article summaryStrengths and limitations of this studyGrip strength is an indicator of upper limb muscle function and tension, and it is one of the important indicators of aging in the human population. This is one of the few studies to examined the relationship between grip strength and retinal thickness and choroidal thickness in a large sample size of patients with diabetes mellitus.Greater hand grip strength was found to be significantly associated with thicker retinal and choroidal thickness in diabetic patients, and grip strength may provide an easily-administered marker of retinal health in diabetic patients.Causal inferences could not be inferred due to the cross-sectional design of the study.The dynamic changes in grip strength and their impact on retinal and choroidal thickness are warranted to be explored in longitudinal studies.

Grip Strength and Endurance in Rock Climbers

1993 ◽  
Vol 207 (2) ◽  
pp. 87-92 ◽  
Author(s):  
A Cutis ◽  
S R Bollen
Keyword(s):  
Grip Strength ◽  
Hand Grip Strength ◽  
Pinch Grip ◽  
Hand Grip

The performance of competition climbers in laboratory-based tests of pinch and whole hand grip strength and endurance was compared to that of non-climbers of the same age, sex and physique. Climbers performed significantly better, indicating higher stresses acting in the flexor mechanism, possibly predisposing injury. Attempts were made to correlate the performance in the tests to climbing achievement, measured by current technical climbing standards. Although pinch grip strength increased with the length of climbing experience, there was no evidence that strength in the hands alone guarantees success in competition climbing.

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
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