TY - JOUR
T1 - Impulse variability in isometric tasks
AU - Carlton, Les G.
AU - Kim, Ky Houng
AU - Liu, Yeou Teh
AU - Newell, Karl M.
PY - 1993/3
Y1 - 1993/3
N2 - An isometric elbow flexion task was used in two experiments that examined the influence of force-production characteristics on impulse variability. Impulse size was held constant while peak force, time to peak force, rate of force, and, hence, the shape of the criterion force-time curve were manipulated. The results indicated that changes in the force-time curve under conditions of equal impulse bring about systematic changes in impulse variability, and this effect is more pronounced for larger impulse conditions. The inability of existing functions to account for the peak force variability findings led to the generation of a new predicted force variability function. The proposed function accounts for changes in the standard deviation and coefficient of variation of peak force, impulse, and rate of force over a range of force-time conditions.
AB - An isometric elbow flexion task was used in two experiments that examined the influence of force-production characteristics on impulse variability. Impulse size was held constant while peak force, time to peak force, rate of force, and, hence, the shape of the criterion force-time curve were manipulated. The results indicated that changes in the force-time curve under conditions of equal impulse bring about systematic changes in impulse variability, and this effect is more pronounced for larger impulse conditions. The inability of existing functions to account for the peak force variability findings led to the generation of a new predicted force variability function. The proposed function accounts for changes in the standard deviation and coefficient of variation of peak force, impulse, and rate of force over a range of force-time conditions.
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U2 - 10.1080/00222895.1993.9941637
DO - 10.1080/00222895.1993.9941637
M3 - Article
AN - SCOPUS:0002157189
VL - 25
SP - 33
EP - 43
JO - Journal of Motor Behavior
JF - Journal of Motor Behavior
SN - 0022-2895
IS - 1
ER -