scholarly journals The Reliability and Validity of Subjective Notational Analysis in Comparison to Global Positioning System Tracking to Assess Athlete Movement Patterns

2011 ◽  
Vol 25 (3) ◽  
pp. 852-859 ◽  
Author(s):  
Sera N Doğramac ◽  
Mark L Watsford ◽  
Aron J Murphy
2014 ◽  
Vol 16 (2) ◽  
pp. 95-99 ◽  
Author(s):  
Jyothi T. S. ◽  
◽  
Catherine Mathew ◽  
Irene George

2020 ◽  
Vol 66 (5) ◽  
pp. 553-555
Author(s):  
Dahabo Adi Galgallo ◽  
Ibrahim Lio ◽  
Adano Kochi ◽  
Dennis Kalikidane Mutiga CCE ◽  
James Ransom

Abstract We report the case of a 9-month-old male infant diagnosed in the field with extra-pulmonary tuberculosis (TB). Use of innovative global positioning system tracking of pregnant pastoralist women allowed staff to find the mother, locate the infant and enroll the infant in care and treatment. Due to this innovative intervention of case finding and tracking, the infant was prevented from defaulting and completed his anti-TB regimen.


2007 ◽  
Vol 104 (18) ◽  
pp. 7471-7476 ◽  
Author(s):  
Dora Biro ◽  
Robin Freeman ◽  
Jessica Meade ◽  
Stephen Roberts ◽  
Tim Guilford

How do birds orient over familiar terrain? In the best studied avian species, the homing pigeon (Columba livia), two apparently independent primary mechanisms are currently debated: either memorized visual landmarks provide homeward guidance directly, or birds rely on a compass to home from familiar locations. Using miniature Global Positioning System tracking technology and clock-shift procedures, we set sun-compass and landmark information in conflict, showing that experienced birds can accurately complete their memorized routes by using landmarks alone. Nevertheless, we also find that route following is often consistently offset in the expected compass direction, faithfully reproducing the shape of the track, but in parallel. Thus, we demonstrate conditions under which compass orientation and landmark guidance must be combined into a system of simultaneous or oscillating dual control.


2009 ◽  
Vol 4 (3) ◽  
pp. 381-393 ◽  
Author(s):  
Carl Petersen ◽  
David Pyne ◽  
Marc Portus ◽  
Brian Dawson

Purpose:The validity and reliability of three commercial global positioning system (GPS) units (MinimaxX, Catapult, Australia; SPI-10, SPI-Pro, GPSports, Australia) were quantified.Methods:Twenty trials of cricket-specific locomotion patterns and distances (walking 8800 m, jogging 2400 m, running 1200 m, striding 600 m, sprinting 20- to 40-m intervals, and run-a-three) were compared against criterion measures (400-m athletic track, electronic timing). Validity was quantified with the standard error of the estimate (SEE) and reliability estimated using typical error expressed as a coefficient of variation.Results:The validity (mean ± 90% confidence limits) for locomotion patterns walking to striding ranged from 0.4 ± 0.1 to 3.8 ± 1.4%, whereas for sprinting distances over 20 to 40 m including run-a-three (approx. 50 m) the SEE ranged from 2.6 ± 1.0 to 23.8 ± 8.8%. The reliability (expressed as mean [90% confidence limits]) of estimating distance traveled by walking to striding ranged from 0.3 (0.2 to 0.4) to 2.9% (2.3 to 4.0). Similarly, mean reliability of estimating different sprinting distances over 20 to 40 m ranged from 2.0 (1.6 to 2.8) to 30.0% (23.2 to 43.3).Conclusions:The accuracy and bias was dependent on the GPS brand employed. Commercially available GPS units have acceptable validity and reliability for estimating longer distances (600–8800 m) in walking to striding, but require further development for shorter cricket-specifc sprinting distances.


2014 ◽  
Vol 13 (6) ◽  
pp. 482-492 ◽  
Author(s):  
Catherine L. Granger ◽  
Linda Denehy ◽  
Christine F. McDonald ◽  
Louis Irving ◽  
Ross A. Clark

Introduction. Increasingly physical activity (PA) is being recognized as an important outcome in non–small cell lung cancer (NSCLC). We investigated PA using novel global positioning system (GPS) tracking individuals with NSCLC and a group of similar-aged healthy individuals. Methods. A prospective cross-sectional multicenter study. Fifty individuals with NSCLC from 3 Australian tertiary hospitals and 35 similar-aged healthy individuals without cancer were included. Individuals with NSCLC were assessed pretreatment. Primary measures were triaxial accelerometery (steps/day) and GPS tracking (outdoor PA behavior). Secondary measures were questionnaires assessing depression, motivation to exercise, and environmental barriers to PA. Between-group comparisons were analyzed using analysis of covariance. Results. Individuals with NSCLC engaged in significantly less PA than similar-aged healthy individuals (mean difference 2363 steps/day, P = .007) and had higher levels of depression ( P = .027) and lower motivation to exercise ( P = .001). Daily outdoor walking time ( P = .874) and distance travelled away from home ( P = .883) were not different between groups. Individuals with NSCLC spent less time outdoors in their local neighborhood area ( P < .001). A greater number of steps per day was seen in patients who were less depressed ( r = .39) or had better access to nonresidential destinations such as shopping centers ( r = .25). Conclusion. Global positioning system tracking appears to be a feasible methodology for adult cancer patients and holds promise for use in future studies investigating PA and or lifestyle behaviors.


2017 ◽  
Vol 9 (6) ◽  
pp. 168781401770813 ◽  
Author(s):  
Chaoran Zhou ◽  
Hongfei Jia ◽  
Jingxin Gao ◽  
Lili Yang ◽  
Yixiong Feng ◽  
...  

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