Gary R. Brodowicz

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The test for estimating physical working capacity at the fatigue threshold (PWCft), previously validated for young men, was evaluated for use with elderly men and women. A sample of 27 volunteer subjects (67.6 +/- 5.6 years, 11 male, 16 female) was divided into three matched groups: (1) controls (n = 10), (2) low intensity (70% PWCft) training group (n =(More)
Physical fatigue has been identified as a risk factor associated with the onset of occupational injury. Muscular fatigue developed from repetitive hand-gripping tasks is of particular concern. This study examined the use of a maximal, repetitive, static power grip test of strength-endurance in detecting differences in exertions between workers with(More)
OBJECTIVE To investigate the efficacy of stretching with ice for increasing hamstring flexibility. DESIGN AND SETTING Supine hamstring flexibility was measured before and after subjects accomplished a 20-minute hamstring stretching routine. Two groups of eight subjects accomplished the routine using one of two modalities. A control group (n = 8)(More)
The rationale underlying the development of various formulations of beverages for consumption before, during, and/or after physical exercise is that such formulations should minimise some of the disturbances in physiological homeostasis that occur during exercise and thereby prevent injury and/or enhance performance. Exercise- and dehydration-induced(More)
This study determined the effects of consuming three different amounts of liquid carbohydrate 4 h before exercise on the metabolic responses during exercise and on exercise performance. Four hours before exercise subjects consumed either 45 (L) or 156 (M) g of carbohydrate in isocaloric feedings and either 0 (P) or 312 (H) g of carbohydrate. Interval(More)
This study compared two isometric-grip testing devices and considered the efficacy of combining data from the two as a means of identifying both functional status and consistency of effort for physical capacity evaluations (PCEs). Two groups (26 healthy subjects and 40 patients who had upper-extremity impairments) were used to establish the reliability of(More)
This study was a continuation of 2 investigations into methods used to help discriminate between maximum and submaximum effort in maximal power grip (strength), and repeated maximal power grip (strength-endurance). The purpose was to identify valid discriminator variables, which in combination would improve the detection of submaximum effort over single(More)
BACKGROUND The exclusion of participants with invalid accelerometry data (IAD) may lead to biased results and/or lack of generalizability in large population studies. The purpose of this study was to investigate whether demographic, behavioral, and biological differences occur between those with IAD and valid accelerometry data (VAD) among adults using a(More)
Accelerometer-Assessed Physical Activity and Diabetic Retinopathy in theUnited States Hemoglobin A1c (HbA1c) and blood pressure currently represent the only reversible risk factors associated with diabetic retinopathy.1 Physical activity (PA) is another potential modifiable risk factor for preventing diabetic ocular complications, although studies(More)
The purpose of this study was to investigate the effects of the use of toeclips on the ventilatory threshold (VT) of cyclists and runners during cycle ergometry. Ten competitive cyclists and ten well-trained runners performed two continuous maximal cycle ergometer tests, once with toeclips and once without toeclips. Respiratory data were collected every 20(More)