Özet
Demirci, N. Investigating of Step Count School Time and Out of School time in 11-13 Aged Children Engaged in Outdoor Sports Activity. Hacettepe University Institute of Health Sciences, M.Sc. Thesis in Sport Sciences and Technology Program, Ankara, 2017. The purpose of this study is both to investigate step count which is taken during school time, out of the school time, week days, weekend, sport and non sport days of boys and girls aged 11-13, who do regular sport activity at least one day in a week and to determine whether or not step count which they take is at the recommended level. 41 boys (11,95 ± 0,89 years) and 39 girls (12±0,79 years) were included in this study. After anthropometric measurements, step counts were determined by using ActiGraph wGT3x-BT accelerometer for seven days. This device was weared to wrist of participants except sleep times, swimming and shower. Independent samples t test and One-way ANOVA were used to determine the difference between gender and ages, respectively. As a result, there was significance difference in step count between gender in terms of a total week, weekdays, school time, Saturday, sport and nonsport days (p<0,05). While no difference was found in terms of out of school time, weekend and Sunday (p>0,05). Furthermore, there was no significance difference in the girls in terms of all time period that was investigated in the study (p>0,05). In the boy, we obtained a significant difference in step counts between ages in all time period except sport days. When we compared step count in terms of weekdays and weekend, school time and out of school time, sport and nonsport days, significance difference was found in both genders (p<0,05). It has been observed that the recommended step count was only reached in the sport days in the girls. When compared to others time period, step count in the most of the boys was higher than the recommended step count in weekdays and sport days. In conclusion, when compared to others time period, the recommended step count in sport days is at the peak level for both genders. According to findings of this study, step count could be increased by participating regular sports activities during childhood for both gender.
Künye
1. Adkins M, Brown GA, Heelan K, Ansorge C, Shaw BA, Shaw I. Can Dance Exergaming Contribute To Improving Physical Activity Levels in Elementary School Children?. African Journal for Physical, Health Education, Recreation and Dance. 2013; 19(3): 576-586.
2. Aibar A, Bois JE, Casterad JZ, Generelo E, Paillard T, Fairclough S. Weekday and Weekend Physical Activity Patterns of French and Spanish Adolescents. European Journal of Sport Science. 2014; 14(5): 500-509.
3. Ainsworth BE, Haskell WL, Whitt MC, Irwin ML, Swartz AM, Strath SJ ve arkadaşları. Compendium of Physical Activities: An Update of Activity Codes and MET Intensities. Medicine and Science in Sports and Exercise. 2000; 32(9; SUPP/1): 498-504.
4. Allender S, Cowburn G, Foster C. Understanding Participation in Sport and Physical Activity Among Children and Adults: A Review of Qualitative Studies. Health Education Research. 2006; 21(6): 826-835.
5. Anderson PM, Butcher KF. Childhood Obesity: Trends and Potential Causes. The Future of Children. 2006; 16(1): 19-45.
6. Annesi JJ. Correlations of Depression and Total Mood Disturbance with Physical Activity and Self-concept in Preadolescents Enrolled in an After-school Exercise Program. Psychol Rep. 2005; 96(3 Pt 2): 891-898.
7. Ara I, Aparicio-Ugarriza R, Morales-Barco D, De Souza WN, Mata E, González-Gross M. Physical Activity Assessment in the General Population; Validated Self-report Methods. Nutricion Hospitalaria. 2015; 31(3).
8. Armstrong N, Simons-Morton B. Physical Activity and Blood Lipids in Adolescents. Pediatric Exercise Science. 1994; 6(4): 381-405.
9. Arundell L, Ridgers ND, Veitch J, Salmon J, Hinkley T, Timperio A. 5-Year Changes in Afterschool Physical Activity and Sedentary Behavior. American Journal of Preventive Medicine. 2013; 44(6): 605-611.
10. Atkin AJ, Gorely T, Clemes SA, Yates T, Edwardson C, Brage S, Biddle SJ. Methods of Measurement in Epidemiology: Sedentary Behaviour. International Journal of Epidemiology. 2012; 41(5): 1460-1471.
11. Bailey DP, Fairclough SJ, Savory LA, Denton SJ, Pang D, Deane CS ve arkadaşları. Accelerometry-assessed Sedentary Behaviour and Physical Activity Levels During the Segmented School Day in 10–14-year-old Children: The Happy Study. European Journal of Pediatrics. 2012; 171(12): 1805-1813.
12. Bailey RC, Olson J, Pepper SL ve arkadaşları. The Level and Tempo of Children’s Physical Activities: An Observational Study. Med Sci Sports Exercise. 1995; 27(7): 1033-41.
13. Bar-Or O, Baranowski T. Physical activity, Adiposity and Obesity Among Adolescents. Pediatric Exercise Science, 1994; 6(4): 348-360.
14. Bassett DR, Fitzhugh EC. Establishing Validity and Reliability of Physical Activity Assessment Instruments. Epidemiological Methods in Physical Activity Studies. 2009; 34-55.
15. Baumgartner TA, Jackson AS, Mahar MT, Rowe DA. Measurement for Evaluation in Physical Education and Exercise Science. 2003; (No. Ed. 6). WCB/McGraw-Hill.381-384.
16. Beets MW, Bornstein D, Beighle A, Cardinal BJ, Morgan CF. Pedometer-measured Physical Activity Patterns of Youth: A 13-Country Review. American Journal of Preventive Medicine. 2010; 38(2): 208-216.
17. Beighle A, Morgan CF, Le Masurier G, Pangrazi RP. Children’s Physical Activity During Recess and Outside of School. Journal of School Health. 2006; 76(10), 516-520.
18. Biddle SJ, Gorely T, Stensel DJ. Health-Enhancing Physical Activity and Sedentary Behaviour in Children and Adolescents. Journal of Sports Sciences. 2004; 22(8): 679-701.
19. Bitar A, Fellmann N, Vernet J, Coudert J, Vermorel M. Variations and Determinants of Energy Expenditure As Measured by Whole-body Indirect Calorimetry During Puberty and Adolescence. The American Journal of Clinical Nutrition. 1999; 69(6): 1209-1216.
20. Boddy M, Murphy MH, Cunningham C. Physical Activity, Cardiorespiratory Fitness and Clustered Cardiometabolic Risk in 10-to-12-year-old School Children: The REACH Y6 Study. American Journal of Human Biology. 2014; 26(4): 446–451.
21. Brusseau, T, Kulinna P, Tudor-Locke C, Van Der Mars H and Darst P. Children's Step Counts On Weekend, Physical Education, And Non-Physical Education Days. Journal of Human Kinetics. 2011; 27, 123-134.
22. Brusseau, TA., and Kulinna PH. An Examination of Four Traditional School Physical Activity Models On Children's Step Counts and MVPA. Research quarterly for exercise and sport. 2015; 86.1: 88-93.
23. Burns RD, Brusseau TA, Hannon JC. Prediction of Optimal Daily Step Count Achievement from Segmented School Physical Activity. Advances in Public Health. 2015.
24. Cardon G, De Bourdeaudhuij I. A pilot Study Comparing Pedometer Counts with Reported Physical Activity in Elementary Schoolchildren. Pediatric Exercise Science. 2004; 16(4): 355-367.
25. Carnethon MR, Gulati M, Greenland P. Prevalence and Cardiovascular Disease Correlates of Low Cardiorespiratory Fitness in Adolescents and Adults. JAMA. 2005; 294(23): 2981-2988.
26. Carson V, Saunders T, Tremblay MS. Can The Epidemiologist Learn More from Sedentary Behaviour Than from the Measurement of Physical Activity? In The Objective Monitoring of Physical Activity: Contributions of Accelerometry to Epidemiology, Exercise Science and Rehabilitation Springer. International Publishing. 2016; 181-196.
27. Cauwenberghe E, Labarque V, Trost SG, Bourdeaudhuıj I, Cardon G. Calibration and Comparison of Accelerometer Cut Points in Preschool Children. Pediatric Obesity. 2011; 6(2).
28. Cheval B, Courvoisier DS, Chanal J. Developmental Trajectories of Physical Activity During Elementary School Physical Education. Preventive Medicine. 2016; 87: 170-174.
29. Chinn S, Rona RJ. Prevalence and Trends in Overweight and Obesity in Three Cross-sectional Studies of British Children 1974–94. British Medical Journal. 2001; 322: 24–26.
30. Colley RC, Janssen IAN, Tremblay MS. Daily Step Target to Measure Adherence to Physical Activity Guidelines in Children. Medicine and Science in Sports & Exercise. 2012; 44(5): 977-982.
31. Cooke CB, McDonagh MJ, Nevill AM, Davies CT. Effects of Load on Oxygen Intake in Trained Boys and Men During Treadmill Running. Journal of Applied Physiology. 1991; 71(4): 1237-1244.
32. Corder K, Brage S, Ekelund U. Accelerometers and Pedometers: Methodology and Clinical Application. Current Opinion in Clinical Nutrition & Metabolic Care. 2007; 10(5): 597-603.
33. Craig CL, Tudor-Locke C, Cragg S, Cameron C. Process And Treatment Of Pedometer Data Collection For Youth: The Canadian Physical Activity Levels among Youth study. Medicine and Science in Sports and Exercise. 2010; 42(3), 430-435.
34. De Rezende LF, Rodrigues LM, Rey-Lopez JP, Matsudo VK, Luiz OC. Sedentary Behavior and Health Outcomes: An Overview of Systematic Reviews. Plos One. 2014; 9:e105620.
35. Dencker M, Thorsson O, Karlsson MK, Linden C, Eiberg S, Wollmer P ve arkadaşları. Daily Physical Activity Related to Body Fat in Children Aged 8-11 Years. J Pediatr. 2006; 149(1): 38-42.
36. Duncan JS, Schofield G, Duncan EK. Step Count Recommendations for Children Based on Body Fat. Preventive Medicine.2006; 44(1): 42-44.
37. Ekelund, U, Luan J, Sherar LB, Esliger DW, Griew P, Cooper A. Moderate to Vigorous Physical Activity and Sedentary Time and Cardiometabolic Risk Factors in Children and Adolescents. JAMA. 2012; 307: 704–712.
38. Fairclough SJ, Ridgers ND. Relationships Between Maturity Status, Physical Activity and Physical Self-perceptions in Primary School Children. Journal of Sports Sciences. 2010; 28(1): 1-9.
39. French SA, Fulkerson JA, Story M. Increasing Weight-bearing Physical Activity and Calcium Intake for Bone Mass Growth in Children and Adolescents: A Review of Intervention Trials. Preventive Medicine. 2000; 31: 722– 731.
40. Gauthier, A. P., Laurence, M., Thirkill, L., & Dorman, S. C. Examining School‐Based Pedometer Step Counts Among Children in Grades 3 to 6 Using Different Timetables. Journal of School Health. 2012; 82(7), 311-317.
41. Goh TL, Hannon J, Webster CA, Podlog LW, Brusseau T, Newton M. Effects of A Classroom-based Physical Activity Program on Children’s Physical Activity Levels. Journal of Teaching in Physical Education. 2014; 33(4): 558–572.
42. Goldfield GS, Mallory R, Parker T, Cunningham T, Legg C, Lumb A ve arkadaşları. Effects of Modifying Physical Activity and Sedentary Behavior on Psychosocial Adjustment in Overweight/Obese Children. J Pediatr Psychol. 2007; 32(7): 783-793.
43. Goran MI. Application of The Doubly Labeled Water Technique for Studying Total Energy Expenditure in Young Children: A Review. Ped Exerc Sci. 1994; 6: 11–30.
44. Guerra S, Teixeira-Pinto A, Ribeiro JC, Ascensao A. Relationship Between Physical Activity and Obesity in Children and Adolescents. Journal of Sports Medicine and Physical Fitness. 2006; 46(1): 79.
45. Hansen BH, Kolle E, Dyrstad SM, Holme I, Anderssen SA. Accelerometer Determined Physical Activity in Adults and Older People. Med Sci Sports Exerc. 2012; 44: 266–72.
46. Hardman CA, Horne PJ, Rowlands AV. Children's Pedometer-determined Physical Activity During School-time and Leisure-time. Journal of Exercise Science & Fitness. 2009; 7(2): 129-134.
47. Harrell JS, McMurray RG, Baggett CD, Pennell ML, Pearce PF, Bangdiwala SI. Energy Costs of Physical Activities in Children and Adolescents. Med Sci Sports Exerc. 2005; 37(2): 329-336.
48. Hills AP, Mokhtar N, Byrne NM. Assessment of Physical Activity and Energy Expenditure: An Overview of Objective Measures. Frontiers in Nutrition. 2014; 1.
49. Husu P, Vähä-Ypyä H, Vasankari T. Objectively Measured Sedentary Behavior and Physical Activity of Finnish 7-to-14-year-old Children-associations with Perceived Health Status: A Cross-sectional Study. BMC Public Health. 2016; 16(1): 1.
50. İllköğretim Kurumları (İlkokul ve Ortaokul) Haftalık Ders Çizelgesi [Internet]. 2017 [Erişim Tarihi 6 Mayıs 2017]. Erişim adresi: http://ikgm.meb.gov.tr/upload/TTK%C3%A7izelge.pdf.
51. Janssen I, LeBlanc AG. Systematic Review of the Health Benefits of Physical Activity and Fitness in School-aged Children and Youth. International Journal of Behavioral Nutrition and Physical Activity. 2010; 7(1): 869–871.
52. Kalman M, Inchley J, Sigmundova D, Iannotti RJ, Tynjala JA, Hamrik Z ve arkadaşları. Secular Trends in Moderate-to-vigorous Physical Activity in 32 Countries from 2002 to 2010: A Cross-national Perspective. Eur J Public Health. 2015; 2: 37–40.
53. Kang M, Bassett DR, Barreira TV, Tudor-Locke C, Ainsworth B, Reis JP ve arkadaşları. How Many Days Are Enough? A Study of 365 Days of Pedometer Monitoring. Research Quarterly for Exercise and Sport. 2009; 80(3): 445-453.
54. Karaca A. Fiziksel Aktivite Değerlendirme Yöntemleri. Ankara: Spor Yayınevi ve Kitabevi; 2017.
55. Kim J, Must A, Fitzmaurice GM, Gillman MW, Chomitz V, Kramer E ve arkadaşları. Relationship of Physical Fitness to Prevalence and Incidence of Overweight Among Schoolchildren. Obesity. 2005; 13(7): 1246-1254. .
56. Kristensen PL, Korsholm L, Møller NC, Wedderkopp N, Andersen LB, Froberg K. Sources of Variation in Habitual Physical Activity of Children and Adolescents: The European Youth Heart Study. Scandinavian Journal of Medicine & Science in Sports. 2008; 18(3): 298-308.
57. Littlewood RA, White MS, Bell KL, Davies PSW, Cleghorn GJ, Grote R. Comparison of the Cosmed K4 B2 and the Deltatrac IITM Metabolic Cart in Measuring Resting Energy Expenditure in Adults. Clinical Nutrition. 2002; 21(6): 491-497.
58. Loprinzi PD, Cardinal BC. Measuring Children's Physical Activity and Sedentary Behaviors. Journal of Exercise Science & Fitness. 2011; 9(1): 15-23.
59. Louie L, Eston RG, Rowlands AV, Tong KK, Ingledew DK, Fu FH. Validity of Heart Rate, Pedometry and Accelerometry for Estimating the Energy Cost of Activity in Hong Kong Chinese Boys. Pediatric Exercise Science. 1999; 11(3): 229-239.
60. Lubans DR, Plotnikoff RC, Miller A, Scott JJ, Thompson D, Tudor-Locke C. Using Pedometers for Measuring and Increasing Physical Activity in Children and Adolescents: The Next Step. American Journal of Lifestyle Medicine. 2015; 9(6): 418-427.
61. McKelvie KJ, Khan KM, McKay HA. Is There A Critical Period for Bone Response to Weight-bearing Exercise in Children and Adolescents? A Systematic Review. British Journal of Sports Medicine. 2002; 36: 250–257.
62. Malina RM, Bouchard C, Bar-Or. Growth, Maturation and Physical Activity. 2.Baskı. Human Kinetics; 2004.
63. Martin MW, Martin S, Rosengard P. PE2GO: Program Evaluation of A Physical Activity Programing Elementary Schools. Journal of Physical Activity and Health. 2010; 7(5): 677–684.
64. McKenzie T, Sallis JF, Patterson T ve arkadaşları. BEACHES: An Observational System for Assessing Children’s Eating and Physical Activity Behaviors and Associated Events. Journal of Applied Behavior Analysis. 1991; 24 (1): 141-51.
65. McKenzie TL, Crespo NC, Baquero B, Elder JP. Leisure-time physical Activity in Elementary Schools: Analysis of Contextual Conditions. Journal of School Health. 2010; 80(10): 470–477.
66. Mota J, Silva P, Santos MP, Ribeiro JC, Oliveira J, Duarte JA. Physical Activity and School Recess Time: Differences Between the Sexes and the Relationship Between Children's Playground Physical Activity and Habitual Physical Activity. Journal of Sports Sciences. 2005; 23(3): 269-275.
67. Nader PR, Bradley RH, Houts RM, McRitchie SL, O'Brien M. Moderate-to-vigorous Physical Activity from Ages 9 to 15 Years. 2010; 300(3): 295–305.
68. Ness AR, Leary SD, Mattocks C, Blair SN, Reilly JJ, Wells J ve arkadaşları. Objectively Measured Physical Activity and Fat Mass in A Large Cohort of Children. PLoS Medicine. 2007; 4(3): e97.
69. Nettlefold L, McKay HA, Warburton DER, McGuire KA, Bredin SSD, Naylor PJ. The Challenge of Low Physical Activity During the School Day: At Recess, Lunch and in Physical Education. British Journal of Sports Medicine. 2010; 813-819.
70. Nicklas TA, Von Duvillard SP, Berenson GS. Tracking of Serum Lipids and Lipoproteins from Childhood to Dyslipidemia in Adults: The Bogalusa Heart Study. International Journal of Sports Medicine. 2002; 23(S1): 39–43.
71. O’Hara NM, Baranowski T, Simons-Morton BG ve arkadaşları. Validity of the Observation of Children’s Physical Activity. Research Quarterly Exercise Sport. 1989; 60(1): 42-47.
72. Ochoa MC, Moreno-Aliaga MJ, Martínez-González MA, Martínez JA, Marti A, Members GENOI. Predictor Factors for Childhood Obesity in A Spanish Case-control Study. Nutrition. 2007; 23(5): 379-384.
73. Ondrak KS, Morgan DW. Physical Activity, Calcium Intake and Bone Health in Children and Adolescents. Sports Med. 2007; 37(7): 587-600.
74. Pate RR, O'neill JR, Mitchell J. Measurement of Physical Activity in Preschool Children. Medicine and Science in Sports and Exercise. 2010; 42(3): 508-512.
75. Pettee KK, Storti KL, Ainsworth BE, Kriska AM. Measurement of Physical Activity and Inactivity in Epidemiologic Studies. Epidemiological Methods in Physical Activity Studies. 2009; 15-33.
76. Piaggi P, Thearle MS, Bogardus C, Krakoff J. Lower energy expenditure predicts long-term increases in weight and fat mass. The Journal of Clinical Endocrinology & Metabolism. 2013; 98(4), E703-E707.
77. Ploeg, KA. V, Wu, B., McGavock, J, Veugelers, PJ. Physical Activity Among Canadian Children On School Days And Nonschool Days. Journal Of Physical Activity And Health. 2012; 9(8): 1138-1145.
78. Powers S, Howley E. Exercise Physiology. Theory and Application to Fitness and Performance. 7.Baskı. Perfect Paperback; 2008.
79. President’s Council on Physical Fitness and Sports. The Presidential Active Lifestyle Award (PALA). Washington, DC; 2002.
80. Reiner M, Niermann C, Jekauc D, Woll A. Long-Term Health Benefits of Physical Activity–A Systematic Review Of Longitudinal Studies. BMC Public Health. 2013; 13(1): 813.
81. Riddoch CJ, Andersen LB, Wedderkopp N, Harro M, Klasson-Heggebø L, Sardinha LB ve arkadaşları. Physical Activity Levels and Patterns of 9-and 15-year-old European Children. Medicine & Science in Sports & Exercise. 2004; 36(1): 86-92.
82. Ridgers ND, Stratton G, Fairclough SJ. Assessing Physical Activity During Recess Using Accelerometry. Preventive Medicine. 2005; 41(1): 102-107.
83. Ridgers ND, Fairclough S. Assessing Free-living Physical Activity Using Accelerometry: Practical Issues for Researchers and Practitioners. European Journal of Sport Science. 2011; 11(3): 205-213.
84. Rocchini AP. Childhood Obesity and A Diabetes Epidemic. New England Journal of Medicine. 2002; 346: 854–855.
85. Roemmich J, Clark, PA, Walter K, Patrie J, Weltman A, Rogol AD. Pubertal Alterations in Growth and Body Composition. V. Energy Expenditure, Adiposity and Fat Distribution. American Journal of Physiology-Endocrinology and Metabolism. 2000; 279(6): E1426-E1436.
86. Rowe PJ, Schuldheisz JM, Van Der Mars H. Validation of SOFIT for Measuring Physical Activity of First-to Eighth-grade Students. Pediatric Exercise Science. 1997; 9(2): 136-149.
87. Rowland TW. The Role of Physical Activity and Fitness in Children in the Prevention of Adult Cardiovascular Disease. Progress in Pediatric Cardiology. 2001; 12: 199–203.
88. Rowlands AV, Pilgri EL, Eston RG. Patterns of Habitual Activity Across Weekdays and Weekend Days in 9–11-year-old Children. Preventive Medicine. 2008; 46(4): 317-324.
89. Sallis JF, Owen N. Physical Activity and Behavioral Medicine. California: Sage; 1999.
90. Sallis JF. Measuring Physical Activity Environments: A Brief History. America Journal of Preventive Medicine. 2009; 36(4): 86-92.
91. Sallis JF, Floyd MF, Rodríguez DA, Saelens BE. Role of Built Environments in Physical Activity, Obesity, and Cardiovascular Disease. Circulation. 2012; 125(5): 729-737.
92. Schutz Y, Weinsier RL, Hunter GR. Assessment of Free‐living Physical Activity in Humans: An Overview of Currently Available and Proposed New Measures. Obesity. 2001; 9(6): 368-379.
93. Sinha R, Fisch, Teague B ve arkadaşları. Prevalence of Impaired Glucose Tolerance Among Children and Adolescents with Marked Obesity. New England Journal of Medicine. 2002; 346: 802–810.
94. Sirard JR, Pate RR. Physical Activity Assessment in Children and Adolescents. Sports Medicine. 2001; 31(6): 439-454.
95. Slater A, Tiggemann M. Gender Differences in Adolescent Sport Participation, Teasing, Self-objectification and Body Image Concerns. Journal of Adolescence. 2011; 34(3): 455-463.
96. Spittaels H, Van Cauwenberghe E, Verbestel V, De Meester F, Van Dyck D, Verloigne M ve arkadaşları. Objectively Measured Sedentary Time and Physical Activity Time Across the Lifespan: A Cross-sectional Study in Four Age Groups. International Journal of Behavioral Nutrition and Physical Activity. 2012; 9: 149.
97. Strath SJ, Swartz AM, Bassett Jr DR, O'Brien WL, King GA, Ainsworth BE. Evaluation of Heart Rate As A Method for Assessing Moderate Intensity Physical Activity. Medicine and Science in Sports and Exercise. 2000; 32(9Suppl): 465-470.
98. Strauss RS, Pollack HA. Epidemic Increase in Childhood Overweight, 1986–1998. Journal of the American Medical Association. 2001; 286: 2845–2848.
99. Sylvia LG, Bernstein EE, Hubbard JL, Keating L, Anderson EJ. A Practical Guide to Measuring Physical Activity. Journal of the Academy of Nutrition and Dietetics. 2014; 114(2): 199.
100. Tao FB, Xu ML, Kim SD, Sun Y, Su PY, Huang K: Physical Activity Might Not Be the Protective Factor for Health Risk Behaviours and Psychopathological Symptoms in Adolescents. Journal of Paediatrics and Child Health. 2007; 43(11): 762-767.
101. T.C Sağlık Bakanlığı. Çocuklarda ve Ergenlerde Türkiye Fiziksel Aktivite Rehberi. 2014; Ankara: Kuban Matbaacılık Yayıncılık. Sağlık Bakanlığı Yayın 940.
102. Tolfrey K, Jones AM, Campbell IG. The Effect of Aerobic Exercise Training on the Lipid-lipoprotein Profile of Children and Adolescents. Sports Medicine. 2000; 29: 99–112.
103. Trost SG, Pate RR, Sallis JF, Freedson PS, Taylor WC, Dowda M ve arkadaşları. Age and Gender Differences in Objectively Measured Physical Activity in Youth. Medicine & Science in Sports & Exercise. 2002; 34(2): 350-355.
104. Trost SG. State of the Art Reviews: Measurement of Physical Activity in Children and Adolescents. American Journal of Lifestyle Medicine. 2007; 1(4): 299-314.
105. Troutman SR, Allor KM, Hartmann DC ve arkadaşları. MINI-LOGGER Reliability and Validity for Estimating Energy Expenditure and Heart Rate in Adolescents. Research Quarterly Exercise Sport. 1999; 70(1): 70-74.
106. Tudor-Locke C and Basset DR. How Many Steps/day are Enough? Preliminary Pedometer İndices for Public Health. 2004; 34(1):1-8.
107. Tudor-Locke C, Lee SM, Morgan CF, Beighle A, Pangrazi RP. Children's Pedometer-determined Physical Activity During the Segmented School Day. Medicine and Science in Sports and Exercise. 2006; 38(10): 1732-1738.
108. Tudor-Locke C, Hatano Y, Pangrazi RP, Kang M. Revisiting How Many Steps Are Enough? Medicine & Science in Sports & Exercise. 2008; 40(7): 537-543.
109. Tudor-Locke C, McClain JJ, Hart LT, Sisson BS, Washington LT. Expected Values for Pedometer-determined Physical Activity in Youth. Research Quarterly for Exercise and Spor. 2009; 80(2): 164–174.
110. Tudor-Locke C, Craig CL, Rowe DA, Spence JC, Tanaka S, Blair SN., ... & Hatano Y. How Many Steps/Day Are Enough? For Children And Adolscents. International Journal Of Behavioral Nutrition And Physical Activity. 2011; 78 (8): 1-14.
111. Twisk JWR, Kemper HCG, Van Mechelen W. Prediction of Cardiovascular Disease Risk Factors Later in Life by Physical Activity and Physical Fitness in Youth: General Comments and Conclusions. International Journal of Sports Medicine. 2002; 23(suppl.): 44–50.
112. Ünver E. Ergenlik Öncesi Erkek Çocuklarda Fiziksel Aktivite Düzeyinin 6 Dakika Yürüme Testi ile İlişkisi [Yüksek lisans]. Yer: Hacettepe Üniveristesi; 2014.
113. Vanhees L, Lefevre J, Philippaerts R., Martens M., Huygens W, Troosters T ve arkadaşları. How to Assess Physical Activity? How to Assess Physical Fitness? European Journal of Cardiovascular Prevention & Rehabilitation. 2005; 12(2): 102-114.
114. Vincent SD, Pangrazi RP. An Examination Of The Activity Patterns Of Elementary School Children. Pediatric Exercise Science. 2002; 14(4): 432-441.
115. Volp ACP, Oliveira FCED, Alves RDM, Esteves EA and Bressan J. Energy Expenditure: Components and Evaluation Methods. Nutricion Hospitalaria. 2011; 26 (3): 430-440.
116. Wareham NJ, Jakes RW, Rennie KL, Mitchell J, Hennings S, Day NE. Validity and Repeatability of the EPIC-Norfolk Physical Activity Questionnaire. International Journal of Epidemiology. 2002; 31(1): 168-174.
117. Warren J., Ekelund U, Besson H, Mezzani A, Geladas N, Vanhees L. Assessment of Physical Activity– A Review of Methodologies with Reference to Epidemiological Research: A Report of the Exercise Physiology Section of the European Association of Cardiovascular Prevention and Rehabilitation. European Journal of Cardiovascular Prevention & Rehabilitation. 2010; 17(2): 127-139.
118. Weaver RG, Crimarco A, Brusseau TA, Webster CA, Burns RD, Hannon JC. Accelerometry‐Derived Physical Activity of First Through Third Grade Children During the Segmented School Day. Journal of School Health. 2016; 86(10): 726-733.
119. Whitaker RC, Wright JA, Pepe MS, Seidel KD, Dietz WH. Predicting Obesity in Young Adulthood from Childhood and Parental Obesity. New England Journal of Medicine. 1997; 337: 869–873.
120. Wickel EE, Eisenmann JC. Contribution Of Youth Sport To Total Daily Physical Activity Among 6-To 12-Yr-Old Boys. Medicine & Science in Sports & Exercise. 2007; 39(9), 1493-1500.
121. Wickel EE, Belton S. School's Out… Now What? Objective Estimates of Afterschool Sedentary Time and Physical Activity from Childhood to Adolescence. Journal of Science and Medicine in Sport. 2016; 19(8): 654-658.
122. World Health Organization (WHO) [Internet]. 2010 [Erişim Tarihi 12 Haziran2017].Erişimadresi:http://www.who.int/gho/ncd/risk_factors/physical_activity/en/
123. Yli-Piipari S, Kulmala JS, Jaakkola T, Hakonen H, Fish JC, Tammelin T. Objectively Measured School Day Physical Activity Among Elementary Students in the United States and Finland. Journal of Physical Activity and Health. 2016; 13(4): 440-446.