W L Cornelius

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The purpose of the study was to determine the effects of modified Proprioceptive Neuromuscular Facilitation (PNF) flexibility techniques on hip flexion in college males and to determine if local cold application enhances the effectiveness of these techniques. Male subjects (N = 120), with an average age of 21.5 +/- 2.7 years, were randomly assigned to one(More)
Proprioceptive Neuromuscular Facilitation (PNF) flexibility techniques are now being used in health and sports related activities, yet it is unclear as to the relationship between various isometric contraction time increments and joint range of motion. The purpose of this study, therefore, was to determine the relationship between a three-second,(More)
SUMMARY In nesting survival studies nests are not found until after incubation has begun and therefore nests which fail are of unknown age while nests which succeed can be aged afterwards. Typically ornithologists have considered the survival time to be from first encounter and have used the Mayfield method (Mayfield 1961, 1975) or variations of it. Here we(More)
This study was conducted in order to determine the effects of various types of warm-up on performance of the slow-reversal-hold-relax modified Proprioceptive Neuromuscular Facilitation (PNF) flexibility maneuver. The subjects for this study (N=54) were active, injuryfree females who were randomly assigned to stationary cycling, whirlpool, or control groups.(More)
In brief: For this study of the acute effects of stretching techniques on arterial blood pressure (ABP), 60 men were assigned to one of three treatment groups, each consisting of one modified proprioceptive neuromuscular facilitation (PNF) technique: hold-relax, contract-relax, and slow-reversal-hold-relax (SRHR). Flexibility and ABP data were collected(More)
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