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The purpose of this study was to assess the effect of T' ai Chi Chuan training on lateral stability, kinesthetic sense, and strength of voluntary knee extension. Subjects consisted of 24 naive volunteers (12 men and 12 women) between the ages of 20 and 45 years. Pre- and 12-week posttests included lateral body stability, kinesthetic sense in the(More)
There were 19 males and 11 females with a mean age of 21 +/- 3 years and a mean weight of 72.8 +/- 3.2 kg who participated in an experiment to investigate the effect of caffeine on simple reaction time (RT) and movement time (MT). Subjects were randomly assigned to one of three groups--two experimental groups and one control group. Caffeine was administered(More)
Currently, early phonatory changes in amyotrophic lateral sclerosis (ALS) are not well understood. The aim of this study was to compare acoustic parameters of voice in ALS subjects who demonstrated perceptually normal vocal quality on sustained phonation with a control group. We hypothesized that objective analysis of voice would reveal significant(More)
To compare hiking stick use on lateral stability while balancing with or without a load (15-kg internal frame backpack) under conditions of no stick, 1 stick, and 2 sticks for six trials 15 volunteers ages 19 to 23 years (M = 21.7 yr.) were tested six separate times on a stability platform. During randomly ordered, 1-min. trials, the length of time (sec.)(More)
Plyometric training is a popular method by which athletes may increase power and explosiveness. However, plyometric training is considered a highly intense and potentially damaging activity particularly if practiced by the novice individual or if overdone. The purpose of this study was to compare vertical jump performance after land- and aquatic-based(More)
The purpose of this study was to determine the effect of two doses of caffeine on peak torque and muscle endurance in the knee extensors and flexors. Twenty males and 16 females were randomly assigned to one of three groups: 600 mg caffeine, 300 mg caffeine, or a control receiving a placebo. Subjects with similar caffeine consumption history were used and(More)
This study compared balance, sway, and weight shift among golfers with different skill levels. Participants (N=52) were right-handed, male golfers between the ages of 18 and 55 and were divided into 3 groups based on their official handicap (Group 1= 0-9, Group 2= 10-16, Group 3 = 17+). Postural sway velocity was recorded unilaterally for each leg and(More)
Lung volumes and breathing patterns used during speech differ from those of quiet respiration and may be expected to vary with different types of lung disease. To test this possibility, 41 patients with asthma, emphysema, or sarcoidosis and 16 healthy subjects completed a speech protocol. Volumes, times, and flow rates were recorded during conversation and(More)
Researchers have indicated that single-subject experimental designs may be of value in chiropractic clinical practice, allowing for the development of a scientific data base. The purpose of this paper was to employ a single-case time-series descriptive design in a condition (enuresis) not commonly treated in chiropractic practice, but that which is thought(More)
Twenty subjects (6 male, 14 female) with low back pain were examined by two experienced and licensed chiropractic doctors (E1 and E2). Both examiners examined the patients using a Toftness Electromagnetic Radiation Receiver (EMRR) and by manual palpation (MP) of the spinous processes. Interexaminer reliability was calculated at three sites (L3, L4, L5) for(More)