the MAPEs were significantly different between devices and between ND and D wrist. The Bland-Altman method (bias and limits of agreement) was also used to determine the level of agreement between each wrist tracker and the pedometer for measuring step counts. Data analysis was performed in IBM SPSS
Charlotte L. Edwardson, Melanie Davies, Kamlesh Khunti, Thomas Yates, and Alex V. Rowlands
Kerry E. Costello, Janie L. Astephen Wilson, and Cheryl L. Hubley-Kozey
variance. Thus, the focus of this paper was to understand how intra-individual variations over a year within the OA population, regardless of the source or sources of these variations, affect measurement of between-group PA differences and to determine the level of agreement between using a single versus
Bronwyn Clark, Elisabeth Winker, Matthew Ahmadi, and Stewart Trost
activPAL functions as a pedometer and provides measures of step cadence and step number, distinguishing stepping from standing. Studies evaluating the validity of the activPAL under laboratory and free-living conditions have reported excellent agreement with ground truth measures of sedentary behavior (i
Hayley M. Ericksen, Brian Pietrosimone, Phillip A. Gribble, and Abbey C. Thomas
agreement would exist in the detection of biomechanical errors between the participants performing the jump-landing task and the expert evaluating the task. This hypothesis was based on the participant’s lack of prior exposure to a feedback intervention and the idea that participants would have trouble
Asunción Ferri-Morales, Marcus Vinicius Nascimento-Ferreira, Dimitris Vlachopoulos, Esther Ubago-Guisado, Ana Torres-Costoso, Augusto Cesar F. De Moraes, Alan R. Barker, Luis A. Moreno, Vicente Martínez-Vizcaino, and Luis Gracia-Marco
between DXA and ADP ( 3 ). ADP was found to overestimate %BF versus the 5-compartment model in collegiate female athletes ( 24 ). Most of these previous studies assess the agreement between ADP and hydrostatic weighing (as the reference method) to estimate %BF from body density ( 4 , 8 , 12 , 25 , 35 , 36
Susen M. MacMillan
In Canada, amateur athletes who receive government funding in support of their training are required to sign an agreement with the respective sport organization in order to qualify for the assistance. This illustrates how legal practices are increasingly being used in sport. It is important for participants in sport to understand what the legal elements of such practices are in order to identify those situations in which they have been applied properly, inaccurately , or inappropriately. The purpose of this paper is to analyze the content of the agreements signed by Canadian athletes and the procedures by which they are implemented. The result of this analysis is a list of issues that athletes and administrators may wish to address or improve in order to provide a more fair agreement between the parties.
Ana Torres-Costoso, Dimitris Vlachopoulos, Esther Ubago-Guisado, Asunción Ferri-Morales, Iván Cavero-Redondo, Vicente Martínez-Vizcaino, and Luis Gracia-Marco
intermethods agreement in 12- to 14-year-old active males. Methods Subjects and Study Design The present investigation is a cross-sectional analysis as part of a 33-month longitudinal PRO-BONE study (effect of a program of short bouts of exercise on bone health in adolescents involved in different sports), of
Adam J. Zemski, Shelley E. Keating, Elizabeth M. Broad, and Gary J. Slater
-ray absorptiometry; FM = fat mass; FFM = free-fat mass. *Significant difference found between forwards and backs ( p < .001). Changes in DXA FFM and LMI showed a moderate-to-large agreement (Table 2 and Figure 2 ), with minimal influence from ethnicity (Whites: r = .55 and Polynesians: r = .51). However, the
Tegan K. Boehmer, Christine M. Hoehner, Kathleen W. Wyrwich, Laura K. Brennan Ramirez, and Ross C. Brownson
Background:
Neighborhood environmental supports for physical activity are assessed via telephone surveys (perceived) and environmental audits (observed), but the correspondence between methods is not known.
Methods.
Surveys (N = 1068) and audits were conducted concurrently in four diverse urban settings to measure recreational facilities, land use, transportation environment, and aesthetics. Agreement was assessed with kappa (κ) statistics.
Results.
Kappa values ranged from –0.06 to 0.47 for the 28 item-pairs: 17 item-pairs were classified as poor agreement (κ ≤ 0.20), 10 as fair (κ = 0.21-0.40), and 1 as good (κ = 0.47). The highest agreement was observed for proximity to parks, trails, and various land-use destinations, presence of sidewalks, and measures of neighborhood maintenance and cleanliness.
Conclusions.
Methodological issues and/or the likelihood of capturing distinct aspects of the environment may explain the generally low correspondence between survey and audit measures. Our findings should help researchers make informed decisions regarding measurement of environmental supports for physical activity.
Wendy L. Hurley
Context:
The agreement of clinical judgments of endfeel between certified athletic trainers and orthopedic surgeons is not known.
Objectives:
To examine agreement of clinical judgments of endfeel between sample populations and explore the influence of clinician technique on sensitivity for determining ACL injury when performing an isolated examination procedure.
Design:
Randomized, blinded, controlled clinical trials.
Setting:
Laboratory.
Subjects:
1 orthopedic surgeon, 22 certified athletic trainers, and 12 model patients.
Main Outcome Measures:
Kappa coefficients were calculated to determine the agreement of clinical judgments of endfeel between the 2 populations sampled. Lachman-test sensitivity was measured using true positive and false negative interpretations.
Results:
Concurrence was poor for clinical judgments of endfeel. Sensitivity varied according to clinician technique.
Conclusion:
Agreement between the 2 populations sampled was influenced by the examiners’ diagnostic skills and their capacity to properly perform and interpret the Lachman test.
