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Grip and Pinch Strength: Normative data for adults
Abstract
The primary purpose of this study was to establish clinical norms for adults aged 20 to 75+ years on four tests of hand strength. A dynamometer was used to measure grip strength and a pinch gauge to measure tip, key, and palmar pinch. A sample of 310 male and 328 female adults, ages 20 to 94, from the seven-county Milwaukee area were tested using standardized positioning and instructions. Right hand and left hand data were stratified into 12 age groups for both sexes. This stratification provides a means of comparing the score of individual patients to that of normal subjects of the same age and sex. The highest grip strength scores occurred in the 25 to 39 age groups. For tip, key, and palmar pinch the average scores were relatively stable from 20 to 59 years, with a gradual decline from 60 to 79 years. A high correlation was seen between grip strength and age, but a low to moderate correlation between pinch strength and age. The newer pinch gauge used in this study appears to read higher than that used in a previous normative study. Comparison of the average hand strength of right-handed and left-handed subjects showed only minimal differences.
... The handle of the dynamometer was individually adjusted to the size of the upper limbs of each subject so that the angle of the wrist with the instrument ranged from 0 to 30 degrees. For the correct and reliable performance of the tests, subjects had to have their upper limb at a right angle without touching their trunk [18,19]. Each measurement was preceded by a trial attempt to familiarize the participants with the instrument. ...
This study aimed to examine the acute and chronic effects of an exercising table tennis program on cardiac Autonomic Nervous System (ANS) and functional capacity in people with tetraplegia. Twenty males with tetraplegia (C6-C7), with a mean age of 38.50 ± 4.04 years old, were randomly assigned into two equal groups: A, who followed a 6-month exercise training program with table tennis 3 times per week, and B, who remained untrained. Additionally, 11 healthy sedentary men (group C) with a mean age of 39.71 ± 5.87 years old participated in the study as healthy controls. At baseline, all participants underwent a short-term (5 min) and a long-term (24 h ambulatory) ECG monitoring to evaluate the heart rate variability (HRV) indices and a maximal arm ergometric and dynamometric testing of the upper limbs. Moreover, the acute cardiac autonomic responses to maximal arm cycle exercise test were evaluated by Polar S810i sensor chest strap. At the end of the 6-month study, all parameters were revaluated only in groups A and B. At baseline, there was no statistically significant difference between the two patient groups. However, intra-group changes at the end of the 6-month study regarding the 24-h HRV monitoring indicated that group A statistically increased the standard deviation of R-R intervals (SDNN) by 13.9% (p = 0.007), the standard deviation of R-R intervals calculated every 5 min (SDANN) by 8.4% (p = 0.007), the very low frequency (VLF) by 7.1% (p = 0.042), and the low frequency [LF (ms 2)] by 10.5% (p = 0.009), which almost reached the levels of group C. Favorable improvements were also noticed at the end of the study for group A in maximal exercise time of the upper limbs by 80.4% (p < 0.001) and maximal strength of the right hand by 27.8% (p < 0.001). Linear regression analysis after training showed that maximal exercise time was positively correlated with SDNN (r = 0.663, p = 0.036) and with LF (ms 2) (r = 0.623, p = 0.045). Our results indicate that a 6-month table tennis training program is efficient and can improve cardiac ANS activity mainly by increasing sympathovagal balance.
... We calculated the average strength measurement over three consecutive trials (19). Strength of the pinch grip was determined using Baseline Pinch Gauge (White Plains New York, USA) (20). Excellent inter-rater reliability was shown by the Baseline hydraulic pinch meter (ICC = 0.98). ...
Carpal Tunnel Syndrome (CTS) patients frequently report motor symptoms such as hand weakness and difficulty grasping small objects. Nevertheless, patients who only reported unilateral symptoms had bilateral neurophysiological impairment of the median nerve. The aim of the study was to assess bilateral grip and pinch strength on asymptomatic side along with to observe the occurrence of Subclinical CTS. 66 participants were included in the study who received nerve conduction study (NCS) lab referral after clinical diagnosis of CTS made by orthopedician/physician and it was confirmed by NCS. NCS was carried out with the help of RMS EMG Salus 2C. Participants of 18 to 80 years old, getting positive result of CTS during NCS on unilateral side were included. The grip and pinch strength was measured using Baseline Hydraulic Hand Dynamometer and Baseline Pinch Gauge respectively. The hand position was set according to the guidelines from “The American Society of Hand Therapists”. The mean value reduction in grip strength (subclinical) when compared to normative data is 11.32 and also lateral, tripod and tip to tip pinch has shown to decrease in strength and; when subclinical side was compared to affected side 76.74% of participants had decreased grip strength with reduction in lateral, tripod and tip to tip strength. Fisher’s exact test was applied for Statistical Analysis. Patients presenting with symptoms on unilateral side also exhibit reduction of strength over the subclinical side; which suggests that early rehabilitation should be commenced over the subclinical side to prevent further deterioration of the condition.
Background Reablement has a health promotive perspective. The goal is to enhance or maintain health and functional ability and, thereby, the ability of older adults to live in their own homes. The intervention described in this study was introduced so the older person would remain at home and be given the opportunity to regain or maintain functional ability physically, mentally, and socially to live independently and have optimal health and well-being. This paper aims to report the measured effects of reablement among the older adults in terms of bio-psycho-social health that emerged in the randomized controlled trial (RCT). Methods A sample of older adults (65+) was studied, consisting of those who applied for homecare in the municipal home service (n = 237), those who received intensive home reablement (IHR) carried out by an interprofessional team, and a control group who received home-based care as usual. Data were collected at three different occasions with validated instruments: at inclusion, after completion of IHR, and 3 months after completed intervention. Results Both groups improved significantly at the post-measurement, and this improvement was maintained at the 3-month follow-up regarding: global quality of life (HACT); general health (EQ-5D-5L); the self-estimates for mobility, hygiene, daily activities, pain/discomfort, anxiety/depression (EQ-5D-5L); psychological well-being (GP-CORE); self-assessed capacity to perform physical activities as well as satisfaction with performance (COPM); measures of physical activity capacity regarding lower extremities (SPPB); upper extremities (hand dynamometer test). No between group differences were statistically significant. At the 3-month follow-up, the average number of homecare hours was slightly lower in the group that underwent IHR than in the group receiving usual homecare and rehabilitation interventions, but the difference was not statistically certain. Conclusions In this RCT with a relatively short follow-up period, IHR was equivalent to traditional homecare regarding older people’s self-reported health, physical activity ability and number of homecare hours. Trial registration: ClinicalTrials.gov (https://clinicaltrials.gov/study/NCT03565614?intr=Reablement&rank=4) Registration number: NCT03565614. Registered on 1 January 2016.
Objective:
The prevalence of asthma is increasing gradually worldwide. The pathophysiological process of asthma causes some alterations in the respiratory system and decreases oxygen-carbon dioxide exchange and respiration volume. These alterations may affect maximal exercise capacity, peripheral muscle strength, sleep quality, and disease-specific quality of life but have yet to be comprehensively investigated. To compare maximal exercise capacity, pulmonary function, peripheral muscle strength, dyspnea, sleep quality, and quality of life in adult patients with asthma, healthy controls were aimed.
Methods:
Forty-one adult stable asthmatic patients (GINA I-III) and 41 healthy subjects were compared. Exercise capacity (cardiopulmonary exercise test [CPET]), pulmonary function (spirometry), peripheral muscle strength (dynamometer), dyspnea (modified Medical Research Council [mMRC] dyspnea scale), quality of life (Asthma Quality of Life Questionnaire [AQLQ]) and sleep quality (Pittsburgh Sleep Quality Index [PSQI]) were evaluated.
Results:
Peak VO2, VO2kg, MET, VE, HR, %VE, %HR, VCO2 parameters of CPET, FVC, FEV1, FEF25-75%, and FEV1/FVC and quadriceps femoris, shoulder abductors, and hand grip muscle strength were significantly decreased in patients with asthma (p < 0.05). MMRC dyspnea scale score was increased, and AQLQ and PSQI scores decreased in asthma patients (p < 0.05).
Conclusions:
Cardiac and pulmonary system responses to peak exercise worsened, and maximal exercise capacity and peripheral muscle strength decreased in adult patients with stable asthma. In addition, dyspnea during daily activities increases, and quality of life and sleep quality are impaired. A variety of exercise training that would benefit asthmatic patients' outcomes should be investigated.
Aging has made stroke a top killer and disabler, with post-stroke sarcopenia worsening disability and quality of life. While resistance training benefits the elderly, its impact on stroke patients is understudied. This study evaluates the potential of a 4-week unilateral resistance training (URT) program to prevent sarcopenia in stroke patients. It assesses the impact of URT on hand grip strength (HG), muscle thickness (MT), upper limb functionality, and the psychological status of the patients. The study aims to quantitatively analyze these indicators to inform evidence-based post-stroke rehabilitation practices. This study employed a randomized controlled trial (RCT) involving 77 eligible stroke survivors, equally allocated into a control group (n = 39) and an intervention group (n = 38). The control group received standard rehabilitation, while the intervention group additionally underwent a 4-week URT program. The primary outcomes were unaffected side HG and MT, measuring muscle mass and function. Secondary outcomes included the Fugl-Meyer Assessment of the Upper Extremity (FMA-UE) for upper limb functionality and the Hamilton Depression Rating Scale (HAMD) for psychological well-being changes. Statistical analysis showed significant differences (p < 0. 05) in all measured parameters between the intervention and control groups after the 4-week period. Intra-group comparisons also indicated substantial improvements (p < 0. 05). Unilateral resistance training significantly mitigates muscle atrophy in stroke patients, preventing sarcopenia and enhancing upper limb function. It also ameliorates depressive symptoms, improving rehabilitation outcomes and overall quality of life.
Background
Stroke often impairs upper extremity motor function, with recovery in the sub-acute phase being crucial for regaining independence. This study examines changes in isometric muscle strength, dexterity, and self-care independence during this period, and evaluates the effects of a comprehensive intensive rehabilitation (COMIRESTROKE).
Methods
Individuals in sub-acute stroke recovery and age- and sex-matched controls were assessed for pre- and post-rehabilitation differences in primary outcomes (grip/pinch strength, Nine Hole Peg Test [NHPT], Action Research Arm Test [ARAT]). COMIRESTROKE’s effects on primary and secondary outcomes (National Institute of Health Stroke Scale [NIHSS], Modified Rankin Scale [MRS], Functional Independence Measure [FIM]) were evaluated. Outcomes were analyzed for dominant and non-dominant limbs, both regardless of impairment and with a focus on impaired limbs.
Results
Fifty-two individuals with stroke (NIHSS 7.51 ± 5.71, age 70.25 ± 12.66 years, 21.36 ± 12.06 days post-stroke) and forty-six controls participated. At baseline, individuals with stroke showed significantly lower strength (dominant grip, key pinch, tip-tip pinch, padj < 0.05), higher NHPT scores (padj < 0.05), and lower ARAT scores (padj < 0.001). COMIRESTROKE led to improvements in dominant key pinch, non-dominant tip-tip pinch, NHPT, and both dominant and non-dominant ARAT (padj < 0.05). Notably, non-dominant key pinch improved significantly when considering only impaired hands. Pre- and post-test differences between groups were significant only for ARAT (both limbs), even after adjustment (padj < 0.05). All secondary outcomes (NIHSS, MRS, FIM) showed significant improvement post-COMIRESTROKE (padj < 0.001).
Conclusion
Individuals with stroke exhibit reduced muscle strength and dexterity, impairing independence. However, comprehensive intensive rehabilitation significantly improves these functions. Data are available from the corresponding author upon request and are part of a sub-study of NCT05323916.
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