The Effect of Wrist Position on Grip Endurance and Grip Strength

2016 ◽  
Vol 41 (10) ◽  
pp. e367-e373 ◽  
Author(s):  
Julia-Ann Lee ◽  
Sreedharan Sechachalam
Keyword(s):  
Grip Strength ◽  
Wrist Position ◽  
Grip Endurance

The relationship between wrist position, grasp size, and grip strength

1992 ◽  
Vol 17 (1) ◽  
pp. 169-177 ◽  
Author(s):  
Shawn W. O'Driscoll ◽  
Emiko Horii ◽  
Richard Ness ◽  
Tom D. Cahalan ◽  
Robin R. Richards ◽  
...  
Keyword(s):  
Grip Strength ◽  
Wrist Position ◽  
The Relationship

Effects of vibratory massage therapy on grip strength, endurance time and forearm muscle performance

Work ◽  
2021 ◽  
Vol 68 (3) ◽  
pp. 619-632
Author(s):  
Mohd Mukhtar Alam ◽  
Abid Ali Khan ◽  
Mohd Farooq
Keyword(s):  
Grip Strength ◽  
Pearson Correlation ◽  
Massage Therapy ◽  
Voluntary Contraction ◽  
Muscle Performance ◽  
Emg Activity ◽  
Endurance Time ◽  
Vibration Therapy ◽  
Forearm Muscle ◽  
Grip Endurance

BACKGROUND: Vibration therapy (VT) causes an increase in motor unit activation tendency, an involuntary recruitment of earlier sedentary motor units, which increases the muscle fiber force generating capacity and muscle performance. OBJECTIVE: To evaluate the effect of vibratory massage therapy at 23 Hz and 35 Hz on grip strength, endurance, and forearm muscle performance (in terms of EMG activity). METHODS: Ten healthy and right-handed men participated voluntarily in this study. The experiment was characterized by the measurement of MVC (maximal voluntary contraction) grip strength and grip endurance time at 50%MVC, accompanied by the corresponding measurement of the EMG signals of the muscles viz., flexor digitorum superficialis (FDS); flexor carpi ulnaris (FCU); extensor carpi radialis brevis (ECRB); and extensor carpi ulnaris (ECU) in supine posture. RESULTS: MANCOVA results showed significant effects of VT frequency on endurance time (p < 0.001); but no significant effect on the grip strength (p = 0.161) and muscle performance (in terms of EMG activities of the forearm muscles). However, VT improves the MVC grip strength and grip endurance time (better at 35 Hz). The Pearson correlation was significant between: weight, palm length, palm circumference, and forearm length with MVC grip strength; and the palm length with the endurance time. In addition, the palm length, palm circumference, and forearm circumference generally serve to better predict MVC grip strength and grip endurance time. CONCLUSIONS: Vibration therapy at 35 Hz for 10 minutes on the forearms had a significant positive effect on the neuromuscular performance to enhance muscle performance of upper extermitites and can be used as the optimal range to study the effect of VT. Findings may be used to prepare guidelines for VT in rehabilitation, healthcare, sports, and medical for therapists.

INVESTIGATION OF THE RELATIONSHIP BETWEEN ANTHROPOMETRIC MEASUREMENTS AND FOREARM POSTURES WITH GRIP STRENGTH IN YOUNG ADULTS

2021 ◽  
Author(s):  
Mohd Mukhtar Alam ◽  
Israr Ahmad ◽  
Yogesh Kumar ◽  
Abdul Samad ◽  
Yogesh Upadhyay ◽  
...  
Keyword(s):  
Grip Strength ◽  
Supine Position ◽  
Industrial Applications ◽  
Influential Factor ◽  
Endurance Time ◽  
Supine Posture ◽  
Muscles Of The Hand ◽  
Strength Formula ◽  
The Relationship ◽  
Grip Endurance

BACKGROUND: Grip strength is widely accepted as an indicator of maximum hand strength and contraction of active muscles of the hand and forearm. OBJECTIVE: The aim of this study was to assess the effects of forearm posture (pronation, supination and neutral) and anthropometric variation on MVC grip strength and grip endurance time in young university adults. METHODS: Fifty healthy, right-handed men volunteered to participate in this study. The experiment was characterized by measuring MVC grip strength and endurance time of 50% MVC randomly in three different postures (supine, pronation and neutral). Performance was assessed in terms of dependent variables: MVC grip strength and grip endurance time. RESULTS: MANCOVA results showed no significant effect of posture on MVC grip strength ([Formula: see text]) and grip endurance time ([Formula: see text]). There was a significant effect of age ([Formula: see text]), height ([Formula: see text]) and forearm length ([Formula: see text]) on the grip endurance time in supine position. However, palm circumference had a significant effect on MVC grip strength ([Formula: see text]) in pronation posture only. The pronation forearm posture produces 7.4% more grip strength than a supine posture. In addition, the grip endurance time was improved in the supine position, compared to the neutral and pronation forearm posture. CONCLUSIONS: This study showed that the MVC grip strength is affected by the weight and palm circumference. In addition, palm circumference was the most influential factor affecting grip strength. Thus, anthropometric and posture-specific grip strength data are essential for clinical and industrial applications. The results can be used to prepare guidelines for rehabilitation, health care, sport and medicine.

scholarly journals Effect of custom-made and prefabricated orthoses on grip strength in persons with carpal tunnel syndrome

2013 ◽  
Vol 38 (3) ◽  
pp. 193-198 ◽  
Author(s):  
Maja Mlakar ◽  
Nerrolyn Ramstrand ◽  
Helena Burger ◽  
Gaj Vidmar
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Grip Strength ◽  
Study Design ◽  
Carpal Tunnel ◽  
Clinical Relevance ◽  
Neutral Position ◽  
Wrist Position ◽  
Affected Side ◽  
Custom Made ◽  
Tunnel Syndrome

Background: Based on the literature, patients with carpal tunnel syndrome are suggested to wear a custom-made wrist orthosis immobilizing the wrist in a neutral position. Many prefabricated orthoses are available on the market, but the majority of those do not assure neutral wrist position. Objectives: We hypothesized that the use of orthosis affects grip strength in persons with carpal tunnel syndrome in a way that supports preference for custom-made orthoses with neutral wrist position over prefabricated orthoses. Study design: Experimental. Methods: Comparisons of grip strength for three types of grips (cylindrical, lateral, and pinch) were made across orthosis types (custom-made, prefabricated with wrist in 20° of flexion, and none) on the affected side immediately after fitting, as well as between affected side without orthosis and nonaffected side. Results: Orthosis type did not significantly affect grip strength ( p = 0.661). Cylindrical grip was by far the strongest, followed by lateral and pinch grips ( p < 0.050). The grips of the affected side were weaker than those of the nonaffected side ( p = 0.002). Conclusions: In persons with carpal tunnel syndrome, neither prefabricated orthoses with 20° wrist extension nor custom-made wrist orthoses with neutral wrist position influenced grip strength of the affected hand. Compared to the nonaffected side, the grips of the affected side were weaker. Clinical relevance The findings from this study can be used to guide application of orthoses to patients with carpal tunnel syndrome.

Effects of Interdigital Spacing, Wrist Position, Forearm Position, Grip Span, and Gender on Static Grip Strength

1996 ◽  
Vol 40 (13) ◽  
pp. 712-716 ◽  
Author(s):  
Angela Hansen ◽  
Susan Hallbeck
Keyword(s):  
Grip Strength ◽  
Random Order ◽  
Wrist Position ◽  
Bare Hand ◽  
Hand Dynamometer ◽  
And Gender ◽  
Main Effects

To analyze the effects of factors which may decrement static grip strength, a study was performed using 20 subjects (10 males and 10 females). Three levels of interdigital spacing were examined: 0, 4, and 8 mm to correspond to bare hand, a thermal/spectra knit layered glove, and a chemical glove. Three wrist positions (neutral, 45 degree extension, and 45 degree flexion) and three forearm positions (neutral, full supination, and full pronation), as well as two levels of grip spacing (6.1 and 7.4 cm on the hand dynamometer) were varied in the study. Thus, each subject performed 54 trials, which were presented in random order. The results indicate that the following were significant main effects: gender, grip span, forearm position, wrist position, and interdigital spacing. As expected, males exerted 63.7% more strength, on average, than females. Also, full pronation had a significantly lower mean grasp strength than either neutral or full supination. The 8 mm spacing differed significantly from both 0 and 4 mm spacing and both 4 and 8 mm spacing had a lower mean grasp strength than 0 mm. Also, the 7.4 cm position on the hand dynamometer had significantly lower mean grasp strength as compared with the 6.1 cm position. Wrist position affected mean grasp strength as well; with a neutral wrist position, the strength was significantly higher than either flexed or extended, with a greater decrement from flexion than extension.

scholarly journals Acute Effect of Thumb Spica Taping on Grip Strength and Endurance in Professionals Handball Player

2014 ◽  
Vol 2 (11_suppl3) ◽  
pp. 2325967114S0028
Author(s):  
Serdar Demirci ◽  
Tuğçe Kalaycıoğlu ◽  
Gül Baltacı
Keyword(s):  
Grip Strength ◽  
Elbow Flexion ◽  
Acute Effect ◽  
Hand Grip Strength ◽  
Joint Injury ◽  
Hand Functions ◽  
Hand Grip ◽  
Significant Difference ◽  
Before And After ◽  
Grip Endurance

Objectives: Thumb metacarpophalangeal (MCP) joint injury is frequently seen due to dynamic character of handball game. Spica taping is generally applied to protect thumb during returning to sports activities following rehabilitation in handball player. The aim of this study was to investigate the effect of spica taping on grip strength and grip endurance in professional handball players. Methods: Thirteen female handball players who was playing in Turkey Handball Federation Super League participated in the study. Mean age was 25.23±5.47 years, mean age of beginning to sports was 13.15±5.62 years, mean body mass index was (BMI) 22.38±2.74 kg/cm2. Hand grip strength and grip endurance in dominant side were evaluated before and after spica taping. “Jamar Hand Dynamometer” was used to assess hand grip strength. Grip endurance was measured in seconds during half of average grip strength sustaining for each players. All assessments were applied while sitting during shoulder adduction and neutral rotation with 90° elbow flexion, forearm midrotation, and neutral wrist position. Measurements were repeated 3 times and average values were recorded. Results: There was a statistically significant difference in grip strength between before and after spica taping application (p<0.001). There was a statistically difference in grip endurance between before and after spica taping application (p<0.001). Conclusion: Our results demonstrated that thumb spica taping is effective in improving grip strength and grip endurance in handball players. We suggest that supporting thumb stabilization without limiting hand functions might protect the MCP joint, and contribute injury prevention accompanying with improving sports performance. Consequently, thumb taping is recommended to handball players before competition.

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