Results After each individual completed the Grip Strength experiment the

Results after each individual completed the grip

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Results After each individual completed the Grip Strength experiment, the results were recorded and certain numbers were averaged to compare grip strength among males and females using their dominant hands, grip strength between right and left hands of right and left-handed individuals, and the grip strengths according to heights of the subjects. After completing the Pinch Strength experiment, data was recorded on each subject’s results according to the mean force of each finger. For the muscle fatigue experiment, the mean grip strength and EMG data was recorded during certain time intervals without visual feedback as well as with, and the same data was recorded for the repetitive grip strength part of the experiment. Table 1- Individual Grip Strength Data Individual maximum and mean force of right and left hand grip strength. Maximum force of right hand is higher by 37 Newtons and the mean force of the left hand is higher by 3.8 N. Maximum Force (N) Mean Force (N) Right Hand Grip Strength 243.9 176.5 Left Hand Grip Strength 206.9 180.3 Table 2- Class Grip Strength Data Average mean force of grip strength in males and females with their dominant hand. Average mean force for males was higher than females by approximately 161.57 N. Average Mean Force (N) Males (Dominant Hand Grip Strength) 303.89 Females (Dominant Hand Grip Strength) 141.32 6
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Table 3- Class Grip Strength Data Average mean force of right and left hand for right-handed and left-handed individuals. Left-handed individuals had a higher average mean force when gripping with the right hand by 20.87 N than right-handed individuals. Left-handed individuals had a higher mean force when gripping with the left hand than right-handed individuals by 64.75 N. Average Mean Force of Right Hand (N) Average Mean Force of Left Hand (N) Right-Handed Individuals 171.56 141.55 Left-Handed Individuals 192.43 206.30 Table 4- Class Grip Strength Data Average mean grip strength of the dominant hand in different ranges of heights. The difference between the averages of the tallest group and the shortest group is about 334.67 N. As the person gets taller, the mean grip strength of their dominant hand increases. Height (Rounded to Nearest Inch) Average Mean Grip Strength of Dominant Hand (N) 1.52 m (5’) or below 76.63 1.55-1.63 m (5’1”-5’4”) 141.25 1.65-1.73 m (5’5”-5’8”) 166.42 1.75-1.83 m (5’9”-6’) 258.23 1.85 m (6’1”) and above 411.3 Table 5- Individual Pinch Strength Data Mean force of grip strength in each finger on the dominant hand (in this case the right hand). The index finger was higher than the little finger by 34.35 N and the difference in mean force between each finger from the index to the little finger went from 14.62 to 6.6 and then 13.5 N. Mean Force (N) Dominant Hand Index Finger 70.87 Dominant Hand Middle Finger 56.62 Dominant Hand Ring Finger 50.02 Dominant Hand Little Finger 36.52 7
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Table 6- Continuous Grip Strength Without Visual Feedback Mean grip strength and EMG data that depicts maximum and minimum values in millivolts. Subject begins with a strong mean grip strength and then decreases by 31.05 N until the 60-80 second interval. When members of the group encourage the subject, the mean grip strength increases by 39.85 N to the 80-100 second interval.
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  • Spring '14
  • EugeneNau

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