John F Horton

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PURPOSE Based on the resistance-rpm relationship for cycling, which is not unlike the force-velocity relationship of muscle, it is hypothesized that the cadence which requires the minimal muscle activation will be progressively higher as power output increases. METHODS To test this hypothesis, subjects were instrumented with surface electrodes placed over(More)
Low back pain is a common musculoskeletal disorder affecting golfers, yet little is known of the specific mechanisms responsible for this injury. The aim of this study was to compare golf swing spinal motion in three movement planes between six male professional golfers with low back pain (age 29.2+/-6.4 years; height 1.79+/-0.04 m; body mass 78.2+/-12.2(More)
PURPOSE The purpose of this study was twofold: 1) to determine whether elite male golfers with chronic low back pain (CLBP) exhibit different abdominal muscle activity patterns during the golf swing than asymptomatic control (AC) golfers and 2) to determine whether elite male golfers with CLBP experience greater fatigue in the abdominal muscles than AC(More)
BACKGROUND The relative importance and asymmetric loading of the trunk muscles in golf (slow rotation backswing followed by high velocity downswing) may cause side-to-side imbalances in axial rotation strength and endurance characteristics amongst elite players who frequently play and practice. Such imbalances may further be compounded by the presence of(More)
PURPOSE The purpose of this study was to evaluate the accuracy of the Polar M600 optical heart rate (OHR) sensor compared with ECG heart rate (HR) measurement during various physical activities. METHODS Thirty-six subjects participated in a continuous 76-min testing session, which included rest, cycling warm-up, cycling intervals, circuit weight training,(More)
Participation in the sport of golf has risen considerably, particularly amongst senior players whose age is categorised as 50 years or more. However, golf presents both potential health benefits and risks for this older group of players. The health risks are compounded by the fact that the musculoskeletal and cardiovascular systems of senior players may not(More)
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