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1. C B D 5 Yards 5 Yards 10 Yards A START  A Novel Clinical Agility Test to Discriminate Between Obese and Non-Obese Law Enforcement Officers Medina McKeon JM*, Seals M*, Peelman LM† *Division of Athletic Training, †Division of Clinical Nutrition College of Health Sciences University of Kentucky, Lexington, KY INTRODUCTION • Body Fat Percentage (Fat %) • Fat %, was measured using a multi-frequency bioelectric impedance device (Quadscan 4000, Bodystat Ltd, UK). Height and weight were recorded. • Subjects were placed in a supine position with limbs slightly spread to ensure that no body parts were touching each other. • 2 bio-impedance surface electrodes were placed on the dorsal surface of the right hand & 2 on the dorsal surface of the right foot. • Body impedance was measured at 5, 50, 100, and 200 kHz. At the 50 kHz frequency, the Quadscan 4000 can predict Total body water (TBW) and Fat-Free mass (FFM). Fat mass was calculated as the difference between total body mass and FFM. Data Analysis Dependent variables were Fat% and Time for each task. Fat% was used to classify subjects into the nominal variables of “Obese” (body fat% > 25% for males & > 32% for females) and “Not obese” based on standards by the American Council on Exercise.3 Reliability was determined by intrasession and intersession test-retest. Interclass correlation coefficients (ICC) were used to analyze test-retest reliability. Pearson’s product moment correlations and stepwise discriminant analysis were used to determine validity. Concurrent validity was determined by correlation to a previously established functional test (T-agility). Construct validity was determined by the predictive value of these tests to discriminate between those officers who were obese from those who were not. Statistical significance was set at P<.05. Figure 2. The T-Agility Test Variety of valid and reliable functional testing for the physically active population that is clinically meaningful is lacking. The purpose of this study was to determine the validity and reliability of a novel clinical agility task, and to test it’s utility in discriminating between obese and non-obese law enforcement officers. METHODS Design: Cohort  Setting: Research laboratory • Subjects • Forty-two law enforcement officers from central Kentucky participated in this testing as part of a larger fitness study. • 34 Males • Age = 35.8 ± 6.6 years • Height = 179.7 ± 8.0 cm • Mass = 93.2 ± 14.0kg • Body fat percentage (Fat %) = 22.0±4.5 % • 8 Females • Age = 38.5 ± 5.4 years Height = 163 ± 4.2 cm • Mass = 60.9 ± 8.5 kg • Fat % = 31.7 ± 8.4 % Table. Mean Scores for Obese and Non-obese Officers T-Agility Test The subject started in an upright position. On the command of “go”, the subject sprinted to cone B and touched the base of the cone with their hand. The subject then side-shuffled left to cone C and touched the base of the cone with the left hand. The subject then side-shuffled to the right and touched the base of cone D with the right hand. The subject then side-shuffled to the left and touched the base of cone B with the left hand and finally, backpedaled to cone A. RESULTS Intrasession (ICC = .99, P<.001) and intersession (ICC = .98, P<.001) reliabilities for the PUG were excellent. Correlation between PUG and T-agility was significant (r = .87, P<.001). Correlation between the PUG and Fat% (r = .77, P<.001) was slightly larger than correlation between the T-agility and FA% (r = .70, P<.001). The PUG was included in the model (r = .52, P<.001) as a predictor of obesity, however the T-agility was not. Twenty-seven percent of the variance associated with obesity as determined by Fat% could be predicted by the PUG. Clinical Agility Tests Two clinical agility tests were analyzed. The T-agility test (T-Agility), a previously established, valid and reliable test of leg speed, leg power, and agility1,2 was compared to a novel clinical agility test, the Prone-Up-and-Go (PUG). Prone Up and Go (PUG) For the PUG, the subject started in a prone position. On the command of “go”, the subject stood up, and sprinted to a cone 10 yards away. The subject touched the base of the cone and sprinted back to the starting spot. DISCUSSION • The Prone Up & Go (PUG) was valid and reliable • The PUG was able to discriminate between obese and non-obese officers, while the previously established T-agility test was not. • Results suggest that movement from a prone horizontal position is more difficult than a simple change of direction task, and also stresses both the upper and lower extremities. Figure 2. Prone Up and Go The PUG, a timed test, was modified after a functional test used for testing in geriatrics. Modifications included an increase in intensity and duration. REFERENCES • Semenick D. The T-Test. NSCA Journal. 1990;12(1):36-37. • Pauole K, Garhammer KMJ, Lacourse M, Rozenek R. Reliability and Validity of the T-Test as a Measure of Agility, Leg Power, and Leg Speed in College-Aged Men and Women. The Journal of Strength and Conditioning Research. 2000;14(4):443-450. • http://www.acefitness.org ACKNOWLEDGEMENTS The authors would like to Lexington-Fayette Urban County Government Police Department and SpecOps, Inc. for their participation and assistance in completing this study.