scholarly journals Comparing effort perception in individual and joint action contexts

2019 ◽  
Author(s):  
John Michael ◽  
Yahui Liang ◽  
Thomas Wolf ◽  
Georgina Török ◽  
Marcell Székely
Keyword(s):  
Joint Action ◽  
Effort Perception ◽  
Partial Contribution ◽  
Perception Of Effort ◽  
Significant Difference ◽  
Action Context ◽  
Hand Dynamometer

In order to sustain cooperation, it is important that we have a sense that the distribution of efforts is fair. But how proficient are we at comparing our effort relative to that of others? Does the perception of our effort differ in individual and joint action contexts? To address these questions, we asked participants to squeeze a hand dynamometer at varying degrees of force to meet three target levels alone and with a partner. The results do not reveal a significant difference in the perception of effort between the two conditions. However, participants’ estimation of their effort skewed towards half when they made partial contribution to the target and this effect was more pronounced in the joint action. Taken together, the findings suggest that participants might have applied heuristics when perceiving their effort and in addition, expected fairness in the effortcontribution in a joint action context.

Effect of 3-Month Lysine Supplementation on Growth and Muscle Function Parameters in Pre-pubertal Indian Girls

2018 ◽  
Vol 55 (4) ◽  
pp. 423
Author(s):  
Sejil T. Verghese ◽  
Maria Pauline ◽  
Arun Das ◽  
Anura V. Kurpad
Keyword(s):  
Muscle Strength ◽  
Growth Parameters ◽  
Controlled Trial ◽  
Intervention Group ◽  
Control Group ◽  
Dominant Hand ◽  
Indian Children ◽  
Significant Difference ◽  
Height Gain ◽  
Hand Dynamometer

Lysine is the limiting amino acid in the predominantly cereal and legume based typical Indian diet and its supplementation has been shown to positively affect muscle strength in short term adult and animal models; but similar studies are lacking in children. This study looked at the effect of a 3-month lysine and iron intervention on muscle strength and growth parameters in prepubertal Indian girls. The study was a randomized controlled trial conducted in 40 normal Indian girls in the 9-10 yrs age group. The control group received only iron (6.25mg) supplementation, while the intervention group received both iron and lysine supplementation that increased the lysine intake to 50mg/kg/day. Muscle strength was estimated in both upper limbs with a hand dynamometer and muscle endurance was estimated in the non-dominant hand. Height and weight were recorded to assess growth. A significant difference was seen in the increase in the non-dominant hand grip strength between the groups (intervention: 1.4 vs control: 0.2 kg, p=0.042) at the end of the study. There was a trend of increased height gain (about 25%) and weight gain (about 50%) in the intervention group compared to control group. Lysine supplementation for 3 months increased non-dominant forearm muscle strength in Indian children.

scholarly journals Comparison of methods of measurement of the finger flexor muscles’ strength through dynamometry and modified manual sphygmomanometer

2010 ◽  
Vol 8 (2) ◽  
pp. 205-208 ◽  
Author(s):  
Paulo Roberto Garcia Lucareli ◽  
Mário de Oliveira Lima ◽  
Fernanda Pupio Silva Lima ◽  
Rafaela Okano Gimenes ◽  
Juliane Gomes de Almeida Lucareli ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Strength Test ◽  
Comparison Of Methods ◽  
Significant Difference ◽  
Flexor Muscles ◽  
Hand Dynamometer ◽  
Student’S T ◽  
Finger Flexor Muscles ◽  
Methods Of Measurement ◽  
Student’S T Test

ABSTRACT Objective: To evaluate the reproducibility of the modified sphygmomanometer compared to hand dynamometer to measure muscle strength of the flexor muscles of fingers. Methods: We assessed 40 healthy volunteers of both genders, aged between 20 and 55 years, who underwent the muscle strength test in the finger flexor muscles on both hands using two instruments for which the comparison was made between them. Results: After statistical analysis by the paired Student's t test, there was no significant difference between the values obtained in modified sphygmomanometer and hand dynamometer tests in relation to right and left sides (p > 0.05). Pearson's coefficient of correlation observed good correlations between them. Conclusions: The modified sphygmomanometer proved to be a reproducible technique for measuring muscle strength of the finger flexor muscles.

scholarly journals Volar plating: functional recovery of the pronator quadratus

2021 ◽  
Author(s):  
Patrick Porter ◽  
Alasdair MacInnes ◽  
Tim Drew ◽  
Weijie Wang ◽  
Rami Abboud ◽  
...  
Keyword(s):  
Grip Strength ◽  
Functional Recovery ◽  
Elbow Flexion ◽  
Volar Plating ◽  
Level Of Evidence ◽  
Pronator Quadratus ◽  
Measuring Device ◽  
Significant Difference ◽  
Hand Dynamometer

Abstract Purpose The pronator quadratus (PQ) is reflected in the surgical approach to the distal radius. This study explores the functional strength of PQ, 12 months after volar plating without repair of PQ. Methods A total of 135 patients were identified from our prospectively collected database. All volunteers had grip strength and pronation power tested in the treated and contralateral forearms at 45, 90 and 135 degrees of elbow flexion using a custom-built torque measuring device and hydraulic hand dynamometer to evaluate forearm pronation. Results Twenty-seven participants were included in the study. No significant difference was identified in mean peak pronation torque between the volar plated and non-treated forearms. Pronation strength was identified as being independent of angle of elbow flexion. Grip strength was correlated with forearm pronation showing no significant difference between groups. Conclusions Our results suggest adequate long-term (15–32 months) functional recovery of the pronator quadratus after volar plating. Level of Evidence III.

scholarly journals Evaluating Hand Function in Clients with Trigger Finger

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Danit Langer ◽  
Adina Maeir ◽  
Michael Michailevich ◽  
Shai Luria
Keyword(s):  
Clinical Practice ◽  
Grip Strength ◽  
Test Scores ◽  
Hand Function ◽  
Occupational Therapists ◽  
Trigger Finger ◽  
Healthy Controls ◽  
Clinical Grade ◽  
Significant Difference ◽  
Hand Dynamometer

Background. Trigger finger (TF) is a common hand pathology frequently encountered in hand clinics. Occupational therapists predominantly assess TF symptoms as opposed to using standardized hand functioning assessments. The purpose of this study was to assess the construct validity of dexterity and grip strength assessments for clients with TF. Method. Sixty-three participants with TF and 66 healthy controls were administered the Functional Dexterity Test (FDT), Purdue Pegboard Test (PPT), and Jamar® Hydraulic Hand Dynamometer (JD) and completed the Disabilities of Arm Shoulder and Hand questionnaire (DASH). TF symptoms were graded using the Quinnell classification. Results. Statistically significant differences were found between the groups in dexterity and grip strength. A statistically significant difference between the three TF grades was found on the PPT. All three test scores were moderately correlated with the DASH scores. Conclusion. This study provides innovative evidence for the validity of common hand function assessments for individuals with TF and recommends incorporating these tools in clinical practice. Further research is needed with larger samples and better representation of each TF clinical grade.

Free Recall of Low Meaningfulness Trigrams as a Function of Four Levels of Intralist Similarity

1968 ◽  
Vol 23 (3) ◽  
pp. 895-898
Author(s):  
D. Theron Stimmel ◽  
Nancy S. Stimmel
Keyword(s):  
Free Recall ◽  
Joint Action ◽  
The Other ◽  
Similarity Condition ◽  
Conceptual Similarity ◽  
Intralist Similarity ◽  
Significant Difference ◽  
The Mean ◽  
Four Levels

The free recall of low meaningfulness CVCs was studied as a function of four levels of intralist similarity. The lowest intralist similarity condition yielded the largest mean number of correct responses, and no significant difference appeared among the other three groups. There was an increase in the mean number of incorrect responses as the level of intralist similarity increased. Results were discussed in terms of the joint action of increased formal intralist similarity and the increased opportunity for conceptual similarity effects as intralist similarity increases.

A hard choice for Tomasello

2020 ◽  
Vol 43 ◽  
Author(s):  
Philip Pettit
Keyword(s):  
Joint Action ◽  
The Other ◽  
Hard Choice ◽  
Margaret Gilbert ◽  
Michael Bratman ◽  
Human Sense ◽  
Sense Of Obligation

Abstract Michael Tomasello explains the human sense of obligation by the role it plays in negotiating practices of acting jointly and the commitments they underwrite. He draws in his work on two models of joint action, one from Michael Bratman, the other from Margaret Gilbert. But Bratman's makes the explanation too difficult to succeed, and Gilbert's makes it too easy.

Social epistemic actions

2020 ◽  
Vol 43 ◽  
Author(s):  
Giovanni Pezzulo ◽  
Laura Barca ◽  
Domenico Maisto ◽  
Francesco Donnarumma
Keyword(s):  
Social Interaction ◽  
Joint Action ◽  
Niche Construction ◽  
Cultural Practices ◽  
Learning Processes ◽  
Epistemic Actions ◽  
Target Article ◽  
Online Social Interaction

Abstract We consider the ways humans engage in social epistemic actions, to guide each other's attention, prediction, and learning processes towards salient information, at the timescale of online social interaction and joint action. This parallels the active guidance of other's attention, prediction, and learning processes at the longer timescale of niche construction and cultural practices, as discussed in the target article.

Hearing Aid Gain Usage by Children

1989 ◽  
Vol 20 (2) ◽  
pp. 149-152 ◽  
Author(s):  
Kenneth W. Berger
Keyword(s):  
Hearing Aid ◽  
Appreciable Difference ◽  
Significant Difference ◽  
Clinically Significant

Hearing aid gain usage by two groups of children was examined. No appreciable difference was noted between the groups, nor was there a clinically significant difference between gain usage by these children as compared with a sample of adult hearing aid wearers.

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