The Relationship between Motivation for Physical Activity and Level of Physical Activity over Time
 T.D. Fahey, P.M. Insel, W.T. Roth, Fit & Well: Core Concepts and Labs
in Physical Fitness and Wellness, McGraw-Hill, London, 2004.
 B. Berger, D. Pargman, R. Weinberg, Foundations of Exercise
Psychology, Fitness Information Technology, Inc., Morgantown, WV,
 T. Morris, H. Clayton, H. Power, J. Han, Participation Motivation for
Different Types of Physical Activity, in: International Pre-Olympic
Congress, International Council of Sport Science and Physical
Education, Texas, USA, 1996.
 C. Frederick, T. Morris, Intrinsic and Extrinsic Motivation in Sport and
Exercise, in T. Morris, J. Summers (Eds.) Sports Psychology: Theory,
Applications and Issues, John Wiley & Sons, Australia, 2004, pp. 121-
 F. Li, The Exercise Motivation Scale: Its Multifaceted Structure and
Construct Validity, Journal of Applied Sports Psychology, 11 (1999) 97-
 T. Morris, H. Clayton, H. Power, J. Han, Activity Type Differences in
Participation Motives, Australian Journal of Psychology, 47 (1995) 101-
 T. Morris, H. Rogers, Measuring Motives for Physical Activity, in: Sport
and Chance of Life: International Sport Science Congress, The Kansas
Association for Health, Physical Education, Recreation, and Dance,
Seoul, Korea, 2004, pp. 242-250.
 C.L. Craig, A.L. Marshall, M. Sjostrom, A.E. Bauman, M.L. Booth,
B.E. Ainsworth, M. Pratt, U. Ekelund, A. Yngve, J.F. Sallis, P. Oja,
International Physical Activity Questionnaire: 12-Country Reliability and Validity, Medicine & Science in Sports & Exercise, 35 (2003) 1381-
 P.H. Lee, D.J. Macfarlane, T.H. Lam, S.M. Stewart, Validity of the
international physical activity questionnaire short form (IPAQ-SF): A
 IPAQ Research Committee, Guidelines for data processing and analysis
of the international physical activity questionnaire (IPAQ)—Short and
long forms, in, 2005.
 E. Deci, R. Ryan, Intrinsic Motivation and Self-Determination in Human
Behaviour, Plenum, New York, 1985.
 Kaupužs, The Relationship Between Physical Activity and Exercise
Motivation of the First Year Students from Rezekne Augstskola, LASE
Journal of Sports Science, 4 (2013) 3-15.
 R. Ryan, E. Deci, Overview of Self-Determination Theory: An
Organismic Dialectical Perspective, in E. Deci, R. Ryan (Eds.)
Handbook of Self-Determination Research, University of Rochester
Press, Rochester, NY, 2002, pp. 3-33.
 M. Standage, S. Sebire, T. Loney, Does Exercise Motivation Predict
Engagement in Objectively Assessed Bouts of Moderate-Intensity
Exercise?: A Self-Determination Theory Perspective, Journal of Sport &
Exercise Psychology, 30 (2008) 337.
 P.M. Wilson, D. Mack, S. Muon, M. LeBlanc, What Role Does
Psychological Need Satisfaction Play in Motivating Exercise
Participation?, in L. Chiang (Ed.) Motivation of Exercise and Physical
Activity, Nova Science Publishers, Hauppage, 2007.
 A.E. Cox, A.L. Smith, L. Williams, Change in Physical Education
Motivation and Physical Activity Behavior during Middle School,
Journal of Adolescent Health, 43 (2008) 506-513.
 M. Kilpatrick, E. Hebert, J. Bartholomew, College Students' Motivation
for Physical Activity: Differentiating Men's and Women's Motives for
Sport Participation and Exercise, Journal of American College Health,
54 (2005) 87-94.
 G.E. Duncan, S.J. Sydeman, M.G. Perri, M.C. Limacher, A.D. Martin,
Can Sedentary Adults Accurately Recall the Intensity of Their Physical
Activity?, Preventive Medicine, 33 (2001) 18-26.