scholarly journals Development and Validation of SVPT Device for Assessing Pinch Grip Strength among Neurological Patients

2021 ◽  
Vol 11 (8) ◽  
pp. 108-113
Author(s):  
Mehta Krupa ◽  
Mair Kalpana ◽  
Mair Sushrut Mair Sushrut
Keyword(s):  
Grip Strength ◽  
Physical Therapist ◽  
K Value ◽  
Mean Values ◽  
Left Hand ◽  
Pinch Grip ◽  
Right Hand ◽  
Neurological Patients ◽  
Middle Ring ◽  
Little Finger

Aim: The purpose of this study was to develop an instrument-Smart Virtual Physical Therapist (SVPT) that assess the pinch grip strength and its measurement was recorded on a Smartphone application, and to validate Smart Virtual Physical Therapist device with standard pinchometer device. Method: Observational study was carried out on 40 patients having neurological condition and grip affection of 20-70 years of age. Measurement of pinch grip strength was done with SVPT device and pinchometer between pulp of thumb and pulp of index finger, middle finger, ring finger and little finger. The measurement was recorded in kilogram. Measurements were done once with right hand and then with left hand. Results: Mean values for pinch grip by SVPT device for index, middle, ring and little finger of right hand were 1.92kg, 1.74kg, 1.40kg, 1.11kg and left hand were 1.84kg, 1.71kg, 1.43kg, 1.04kg respectively. In addition to it mean values by pinchometer for index, middle, ring and little finger of right hand were 3.02kg, 2.87kg, 2.17kg, 1.61kg and left hand were 2.84kg, 2.94kg, 2.28kg, 1.62kg respectively. K value for index, middle, ring and little finger of right and left hand was 0.2. There were 25% of people who were unable to do pinch grip using pinchometer. Conclusion: Smart Virtual Physical Therapist device can’t be replaceable with the standard baseline pinchometer to assess the grip strength. But it is a valid tool to measure pinch grip strength in neurological patients due to greater height of pressure sensor of SVPT device for pad to pad grip. Key words: Hand, Instrumentation, Pinch strength.

Upper Extremity Motor Fatigability as an Early Indicator in Pediatric Onset Multiple Sclerosis

2021 ◽  
pp. 088307382199988
Author(s):  
Giuseppina Pilloni ◽  
Martin Malik ◽  
Raghav Malik ◽  
Lauren Krupp ◽  
Leigh Charvet
Keyword(s):  
Multiple Sclerosis ◽  
Grip Strength ◽  
Upper Extremity ◽  
Static Fatigue ◽  
Healthy Controls ◽  
Fatigue Index ◽  
Left Hand ◽  
Right Hand ◽  
Computer Based ◽  
Pediatric Onset

Aim: To adopt a computer-based protocol to assess grip fatigability in patients with pediatric-onset multiple sclerosis to provide detection of subtle motor involvement identifying those patients most at risk for future decline. Method: Pediatric-onset multiple sclerosis patients were recruited during routine outpatient visits to complete a grip assessment and compared to a group of healthy age- and sex-matched controls. All participants completed a computer-based measurement of standard maximal grip strength and repetitive and sustained grip performance measured by dynamic and static fatigue indices. Results: A total of 38 patients with pediatric-onset multiple sclerosis and 24 healthy controls completed the grip protocol (right-hand dominant). There were no significant group differences in maximal grip strength bilaterally (right: 21.8 vs 19.9 kg, P = .25; left: 20.4 vs 18.7 kg, P = .33), although males with pediatric-onset multiple sclerosis were significantly less strong than healthy controls (right: 26.53 vs 21.23 kg, P = .009; left; 25.13 vs 19.63 kg, P = .003). Both dynamic and static fatigue indices were significantly higher bilaterally in pediatric-onset multiple sclerosis compared with healthy control participants (left-hand dynamic fatigue index: 18.6% vs 26.7%, P = .003; right-hand static fatigue index: 28.3% vs 41.3%, P < .001; left-hand static fatigue index: 31.9% vs 42.6%, P < .001). Conclusion: Brief repeatable grip assessment including measures of dynamic and sustained static output can be a sensitive indicator of upper extremity motor involvement in pediatric-onset multiple sclerosis, potentially identifying those in need of intervention to prevent future disability.

scholarly journals Bilateral anatomical variations of the hand extensors

2016 ◽  
Vol 15 (2) ◽  
pp. 278-282
Author(s):  
Humberto Ferreira Arquez
Keyword(s):  
Anatomical Variation ◽  
Medical Science ◽  
Ring Finger ◽  
Anatomical Variations ◽  
Extensor Digitorum ◽  
Left Hand ◽  
Extensor Tendons ◽  
Right Hand ◽  
The Right ◽  
Little Finger

Background: The purpose of this paper is to describe an anatomical variation of the hand extensor on the little finger of the right hand which receives four tendons, condition unknown, as it is the first case reported so far in the literature. The human extensor tendons of hand often display an array of variations. Awareness of the anatomy and variations of the extensor tendons on the dorsum of the hand is necessary not only for the anatomist but also for surgeons when considering tendons for hand surgery, tendon rerouting or transplants. Materials and Methods: Bilateral anatomical variation in the upper limb was found during routine dissection in a 75-year-old male cadaver in the Morphology Laboratory at the University of Pamplona. The variations were recorded and photographed. Result: In the left hand the extensor digitorum there was a single tendon to the index, double tendon to the middle, triple tendon to the ring finger, a single tendon to the little finger or digiti minimi. The extensor digiti minimi has double tendon. In the right hand the extensor digitorum there was a single tendon to the index, triple tendon to the middle finger, triple tendons to the ring finger, a double tendon to the little finger. The extensor digiti minimi has double tendon. The little finger receives four tendons, 2 of extensor digitorum and 2 of extensor digiti minimi. The dorsum of the left hand and right showed juncturae tendinum type 2, between the extensors tendons in the 3rd intermetacarpal space; type 3, between the extensors tendons in the 4th inter metacarpal space. Conclusion: The presence of multiple tendons may alter the kinematics around the site of attachment to the phalanx. Knowledge of anatomical variations and normal anatomy of the extensor tendons, may be helpful while performing graft and tendon transfer operations.Bangladesh Journal of Medical Science Vol.15(2) 2016 p.278-282

scholarly journals Strength and Reaction Time Capabilities of New Zealand Polo Players and Their Association with Polo Playing Handicap

2019 ◽  
Vol 4 (3) ◽  
pp. 48 ◽  
Author(s):  
Regan Standing ◽  
Russ Best
Keyword(s):  
New Zealand ◽  
Reaction Time ◽  
Grip Strength ◽  
Statistical Significance ◽  
Correlation Coefficients ◽  
Hand Grip Strength ◽  
Left Hand ◽  
Hand Grip ◽  
Right Hand ◽  
Physical Attributes

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.

scholarly journals Comparison of subjective peripheral sensation, F-waves, and somatosensory evoked potentials in response to a unilateral pinch task measured on the contractile and non-contractile sides

2021 ◽  
Author(s):  
Terumasa Takahara ◽  
Hidetaka Yamaguchi ◽  
Kazutoshi Seki ◽  
Sho Onodera
Keyword(s):  
Evoked Potentials ◽  
Muscle Contraction ◽  
Somatosensory Evoked Potentials ◽  
Isometric Force ◽  
Sensory Threshold ◽  
Left Hand ◽  
Voluntary Muscle ◽  
Pinch Grip ◽  
Right Hand ◽  
F Wave

AbstractDepression of sensory input during voluntary muscle contractions has been demonstrated using electrophysiological methods in both animals and humans. However, the association between electrophysiological responses of the sensory system and subjective peripheral sensation (SPS) during a voluntary muscle contraction remains unclear. Our aim in this study was to describe the changes in SPS, spinal α-motoneuron excitability (F-wave to M-wave amplitude), and somatosensory evoked potentials (SEPs) during a unilateral pinch-grip task. Outcome variables were measured on the side ipsilateral and contralateral to the muscle contraction, and at rest (control). Participants were 8 healthy men, 20.9±0.8 years of age. The isometric pinch-grip task was performed at 30% of the maximum voluntary isometric force measured for the right and left hand separately. The appearance rate of the F-wave during the task was significantly higher for the ipsilateral (right) hand than for the contralateral (left) hand and control condition. Although there was no difference in F-wave latency between hands and the control condition, the amplitude of the F-wave was significantly higher for the ipsilateral (right) hand than for the contralateral (left) hand and the control condition. There was no difference in the amplitude of the SEP at N20. However, the amplitude at P25 was significantly lower for the ipsilateral (right) hand than for the contralateral (left) hand and the control condition. The accuracy rate of detecting tactile stimulation, evaluated for 20 repetitions using a Semmes–Weinstein monofilament at the sensory threshold for each participant, was significantly lower during the pinch-grip task for both the ipsilateral (right) and contralateral (left) hand compared to the control condition. Overall, our findings show that SPS and neurophysiological parameters were not modulated in parallel during the task, with changes in subjective sensation preceding changes in electrophysiological indices during the motor task. Our findings provide basic information on sensory-motor coordination.

Occupational Performance and Hand Function in People With Parkinson’s Disease After Participation in Lee Silverman Voice Treatment (LSVT) BIG®

2021 ◽  
Vol 75 (6) ◽  
Author(s):  
Barbara M. Doucet ◽  
Mark Blanchard ◽  
Francine Bienvenu
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Grip Strength ◽  
Physical Therapist ◽  
Hand Function ◽  
Performance Measure ◽  
Occupational Performance ◽  
Left Hand ◽  
Lee Silverman Voice Treatment ◽  
Voice Treatment

Importance: People with Parkinson’s disease (PD) experience motor and functional impairment that can negatively affect daily living and participation. Objective: To examine the occupational performance and hand function outcomes of people with PD who participated in a Lee Silverman Voice Treatment (LSVT) BIG® program. Design: Retrospective record review. Setting: Outcomes were extracted from patient charts at a hospital outpatient clinic. Participants: Sixty-six clinic outpatients with PD who completed the LSVT BIG program. Intervention: An occupational therapist and a physical therapist who were certified in LSVT BIG administration delivered the 16-session LSVT BIG program. Outcomes and Measures: The Canadian Occupational Performance Measure (COPM), grip strength, and Minnesota Manual Dexterity Test (MMDT) were administered before and after participation in LSVT BIG training. Results: For participant-identified COPM goals, pre–post changes were significant, ranging from 3 to 6 points for performance and satisfaction (p &lt; .001). Grip strength in both hands showed significant gains; median scores for the right hand increased from 55.0 lb (interquartile range [IQR] 41.0, 70.0) to 64.0 lb (IQR 46.0, 80.0; p &lt; .001) and for the left hand from 52.0 lb (IQR 39.0, 64.0) to 63.0 lb (IQR 44.5, 79.5; p &lt; .001). MMDT median scores for right to left also significantly improved, from 124.0 s (IQR 113.0, 181.0) to 119.5 s (IQR 105.5, 163.5; p = .014). Conclusions and Relevance: Participation in the LSVT BIG program can improve perceived occupational performance and satisfaction and produce gains in hand strength and dexterity for people with PD. What This Article Adds: This study is the first retrospective review of data on occupational performance and hand function outcomes after participation in the LSVT BIG program. The findings of beneficial outcomes support the use of LSVT BIG in occupational therapy services to increase functional abilities among people with PD.

Jvppiter Capitolinvs

1938 ◽  
Vol 28 (1) ◽  
pp. 50-55
Author(s):  
Annie Zadoks Jitta
Keyword(s):  
Left Hand ◽  
Excellent Quality ◽  
Right Hand ◽  
The Right ◽  
Light Green ◽  
Little Finger

The bronze statuette shown in plates ii and iii (2), which represents an enthroned deity, has recently come to Holland from an old Italian collection and is now in private hands. It is 14 cm. high and is hollow; the back has been modelled to just below the waist; the feet are finished in the round. It is of excellent quality and very well preserved and is covered by a light green patina, here and there unfortunately affected by corrosion. The attributes in the right and the left hand are missing; the right thumb and little finger are broken off; the left arm is slightly twisted.The god, evidently Zeus or Juppiter, is represented with nude torso; a himation covers waist and legs and is arranged on the lap in a kind of loop; the feet are shod with sandals. The right hand is stretched forwards with upturned palm; the left hand is raised high, and clearly once held a long sceptre. The left leg is thrust forward, the right somewhat drawn in, and the head is turned slightly to the right.

Choice Reaction Times for Structural Relationships between Possible Response Sequences

1993 ◽  
Vol 77 (3_suppl) ◽  
pp. 1203-1212 ◽  
Author(s):  
Kazunori Shidoji
Keyword(s):  
Index Finger ◽  
Ring Finger ◽  
Reaction Times ◽  
Middle Finger ◽  
Left Hand ◽  
Right Hand ◽  
Structural Relationships ◽  
Middle Ring ◽  
The Right ◽  
Choice Reaction Times

To investigate human motor programming, choice reaction times were measured on tasks for which subjects made choices between two alternative finger-tapping-movement sequences. The total-number-of-responses and the hierarchical editor models were tested. In Exp. 1 the choice was carried on the situations with the same total numbers of possible responses and different structural relations between alternative sequences. The right-hand reaction times in mirror choice (e.g., subject chose between the middle, index, and ring finger sequences of the left or right hand) were shorter than those in nonmirror choice (e.g., subject chose between the middle, index, and ring finger sequence on one hand and the middle, ring, and index finger sequence on the other hand); the total-number-of-responses model was not supported. In Exp. 2 two conditions had the same operation numbers of the hierarchical editor model. In Condition 1 subjects chose between the index finger of the right hand and the ring, index, and middle finger sequence of the left hand. In Condition 2 subjects chose between the index, ring, and middle finger sequences of the left or right hand. The reaction time in the former condition was shorter than that in the latter condition. Exp. 2 exhibited a counterexample of the hierarchical editor model that had been fairly robust in previous studies.

Effects of ipsilateral and crossed eye-hand dominance on catching performance in prepubescents

2017 ◽  
Vol 4 (5) ◽  
pp. 41-48
Author(s):  
M. Akif Ziyagil ◽  
Inci Kesilmiş ◽  
Nevzat Demirci ◽  
M. Melih Kesilmiş
Keyword(s):  
Physical Activity ◽  
Hand Dominance ◽  
Mean Values ◽  
Left Hand ◽  
Left Handed ◽  
Eye Dominance ◽  
Right Hand ◽  
Significant Difference ◽  
The Mean ◽  
The Right

This study investigates the effects of ipsilateral and crossed hand-eye dominance on one and both hands catching performance (OHCP and BHCP) in participants aged 10 to 13 years. The combined groups including hand and eye dominance consisted of right handed-right eyed (RHRE), right handed-left eyed (RHLE), left handed-left eyed (LHLE) and left handed-right eyed (LHRE), respectively. In this study the mean values were only higher in the favor of LHLE females in left hand OHCP from 2 and 3 m distances. In other side, LHLE males had a higher mean values not only in left hand OHCP from 2 and 3 meters but also in the right hand OHCP from 3 meters. No significant difference was observed in BHCP among four groups in both genders. In conclusion, ipsilateral handeye dominance is an advantage for OHCP compared to cross dominance. Also left side had an advantage compare to the right side in OHCP. Keywords: Hand dominance; physical activity; gender.

FURTHER EVIDENCE OF AN ASSOCIATION BETWEEN LOW SECOND-TO-FOURTH DIGIT RATIO (2D:4D) AND SELECTION FOR THE UNIFORMED SERVICES: A STUDY AMONG POLICE PERSONNEL IN WROCŁAW, POLAND

2017 ◽  
Vol 50 (4) ◽  
pp. 527-539 ◽  
Author(s):  
Sławomir Kozieł ◽  
Marek Kociuba ◽  
Raja Chakraborty ◽  
Aneta Sitek ◽  
Zofia Ignasiak
Keyword(s):  
Grip Strength ◽  
Police Officers ◽  
Hand Grip Strength ◽  
Digit Ratio ◽  
Control Group ◽  
Mean Values ◽  
Hand Grip ◽  
Right Hand ◽  
Female Police Officers ◽  
The Right

SummaryMales and females differ in their preference for occupations and sporting activities, and differ also in risk-taking attitudes. In addition to other explanations, prenatal hormone exposure has been implicated in these gender-associated differences. The ratio of the relative lengths of the second-to-fourth digits (2D:4D) is a proxy indicator of prenatal exposure to testosterone relative to oestrogen. The 2D:4D ratio has been found to be associated with choice of occupation, particularly among females. This study investigated whether 2D:4D differed between police officers and a control group of civilians in Wrocław, Poland. Participants were 147 male and 55 female police officers and 91 male and 75 female civilian controls. The police officers had to undergo rigorous physical ability tests during recruitment and their job bore relatively higher risk, whereas the controls had a normal civilian lifestyle. Height, weight, hand grip strength and lengths of the second and fourth digits were measured. Analyses of variance and covariance were employed to assess the significance of difference in digit ratio between groups (police officers and civilians) allowing for interaction with sex. The policewomen, compared with the female controls, were taller and had stronger hand grip strength, but had lower 2D:4D in the right hand and average 2D:4D of both hands. However, male and female police officers slightly differed only in the right hand digit ratio but not in the left hand ratio or the average for the two hands. However, the control group showed significant sex differences in all digit ratios with higher (feminine) mean values in females. The study provides further evidence that prenatal testosterone exposure, as reflected in the 2D:4D ratio, might have an association with choice of occupation, particularly among females.

scholarly journals A Comparative Evaluation between Dermatoglyphic Patterns and the Permanent Molar Relationships – An Attempt to Predict the Future Malocclusions

2021 ◽  
pp. 10-17
Author(s):  
Vignesh R. ◽  
C. Vishnu Rekha ◽  
Sankar Annamalai ◽  
Parisa Norouzi ◽  
Ditto Sharmin
Keyword(s):  
Class Iii ◽  
Ridge Count ◽  
Chi Square ◽  
Exact Test ◽  
Left Hand ◽  
Permanent Molar ◽  
Right Hand ◽  
Pediatric Dentist ◽  
Chi Square Test ◽  
Little Finger

Background: Due to the similar duration of development, finding the dermatoglyphic patterns to predict malocclusions can help a pediatric dentist to attempt any necessary preventive and interceptive orthodontic therapies. Aim: To assess the correlation between different dermatoglyphic patterns with the permanent molar relationships. Materials and Methods: 300 children who are 14-16 years old with completely erupted 2nd permanent molars up to occlusal table were recruited and the pattern of molar terminal plane was recorded in the proforma. Finger prints of these subjects were recorded with ink and roller method. Forensic analyst analysed the prints and classified based on the classification given by Galton and also calculated the finger ridge count as given by Cummins and Midlo Statistical analysis used: Chi-Square test was applied to compare proportions between all the groups and also for gender comparison. Fisher’s exact test was used when any expected cell frequency of less than five were obtained. Paired t-Test and McNemar’s test were applied to compare values between right and left hand. Results: Class I children showed absence of arch pattern in thumb and little finger of left hand; and higher total finger ridge count in right hand when compared to left hand. Children with Class II molar relationship had a significant association with presence of arch pattern in thumb finger of left hand; and presence of whorl pattern in both left and right ring fingers. Class III had a significant association with presence of loop pattern in left thumb finger and little finger; absence of arch pattern in thumb of right hand. Conclusion: Dermatoglyphics can be a useful non-invasive analytical tool to predict malocclusions in permanent dentition and sometimes, to identify an individual. Further studies with larger sample size are required to provide an insight into its significant correlations.

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