Aagaard, P., Simonsen, E.B., Trolle, M., Bangsbo, J. and Klausen, K. (1994) Effects of different strength training regimes on moment and power generation during dynamic knee extensions. European Journal of Applied Physiology 69, 382-386.

Aagaard, P., Simonsen, E.B., Andersen J.L., Magnusson, P. and Dyhre-Poulsen, P. (2002) Increased rate of force development and neural drive of human skeletal muscle following resistance training. Journal of Applied Physiology 83, 1318-1326.

Abenheim, L., Rossignol, M., Valat, J.-P., Nordin, M., Avouac, B., Blotman, F., Charlot, J., Dreiser, R., Legrand, E., Rozenberg, S. and Vautravers, P. (2000) The role of activity in the therapeutic management of low back pain. Spine 25, 1S-33S.

Akima, H., Kano, Y., Enomoto, Y., Ishizu, M., Okada, M., Oishi, Y., Katsuta, S. and Kuno, S. (2001) Muscle function in 164 men and women aged 20-84 yr. Medicine and Science in Sports and Exercise 33, 220-226.

Allison, K.R. (1996) Predictors of inactivity: An analysis of the Ontario health survey. Canadian Journal of Public Health 87, 354-358.

American College of Sports Medicine. (1998) ACSM's Resource Manual for Guidelines for Exercise Testing and Prescription. 3rd Ed. Baltimore: Williams and Wilkins. 448-455.

Aniansson, A., Grimby, G., Hedberg, M. and Krotkiewski, M. (1981) Muscle morphology, entzyme activity and muscle strength in elderly men and women. Clinical Physiology 1, 73-86.

Anton, M.M., Spirduso, W.W. and Tanaka, H. (2004) Age-related declines in anaerobic muscular performance: weightlifting and powerlifting. Medicine and Science in Sports and Exercise 36, 143-147.

Asmunssen, E. and Heeboll-Nielsen, K. (1962) Isometric muscle strength in relation to age in men and women. Ergonomics 5, 167-169.

Baker, D., Wilson, G.M. and Carlyon, B. (1994) Generality versus specificity: a comparison of dynamic and isometric measures of strength and speed-strength. European Journal of Applied Physiology 68, 350-355.

Bassey, E.I., Fiaratore, M.A., O'Neill, E.F., Kelly, M., Evans, W.J. and Lipsitz, M.A. (1992) Leg extensor power and functional performance in very old men and women. Clinical Science 82, 321-327.

Behm, D.G. and Sale, D.G. (1993) Velocity specificity of resistance training. Sports Medicine 15, 374-388.

Beimborn, D.S. and Morrissey, M.C. (1988) A review of the literature related to trunk muscle performance. Spine 13, 655-660.

Bemben, M.G., Massey, B.H., Bemben, D.A., Misner, J.E. and Boileau, R.A. (1991) Isometric muscle force production as a function of age in healthy 20- to 74-yr-old men. Medicine and Science in Sports and Exercise 23, 1302-1310.

Biering-Sorensen, F. (1983) A prospective study of low back pain in a general population. II. Location, character, aggravating and relieving factors. Scandinavian Journal of Rehabilitation Medicine 15, 81-88.

Bij, A.K., Laurant, M.G.H. and Wensing, M. (2002) Effectiveness of physical activity interventions for older adults. A review. American Journal of Preventive Medicine 22, 120-133.

Blair, S.N., Kohl, H.W. and Goodyear, N.N. (1987) Rates and risks for running and exercise injuries: Studies in three populations. Research Quarterly for Exercise and Sport 58, 221-228.

Blair, S.N., Kampert, J.P., Kohl, H.W. III, Barlow, L.E., Macera, L.A., Paffenberger, R.S. and Gibbons, L.W. (1996) Influences of cardiorespiratory fitness and other precursors on cardiovascular disease and all-cause mortality in men and women. The Journal of The American Medical Association 276, 205-210.

Blazevich, A.J. and Jenkins, D.G. (2002) Effects of the movement speed of resistance training exercises on sprint and strength performance in concurrently training elite junior sprinters. Journal of Sports Sciences 20, 981-990.

Borg, G. (1982) Ratings of perceived exertion and heart rates during short-term cycle exercise and their use in a new cycling strength test. International Journal of Sports Medicine 3, 153-158.

Bosco, C., Ito, A., Komi, P.V., Luhtanen, P., Rahkila, P., Rusko, H. and Viitasalo, J.T. (1982) Neuromuscular function and mechanical effeciency of human leg extensor muscles during jumping exercises. Acta Physiologica Scandinavica 114, 543-550.

Bosco, C., Luhtanen, P. and Komi, P.V. (1983) A simple method for measurement of mechanical power in jumping. European Journal of Applied Physiology 50, 273-282.

Bouchard, C., Shephard, R.J. and Stephens, T. (1994) Physical activity, fitness and health: International proceedings and consensus statement. Champaign, Ill: Human Kinetics Publishers Inc. 569-915.

Bravo, G.P., Gauthier, P., Roy, M., Payette, H., Gaulin, P., Harvey, M., Peloquin, L. and Dubois, M.F. (1996) Impact of a 12-month exercise program on the physical and psychological health of osteopenic women. Journal of the American Geriatrics Society 44, 756-762.

Caiozzo, V.J., Perrine, J.J. and Edgerton, V.R. (1981) Training induced alterations in the force-velocity curve. Journal of Applied Physiology 51, 750-754.

Caruso, C.M. and Gill D.L. (1992) Strengthening physical self-perceptions through exercise. The Journal of Sports Medicine and Physical Fitness 32, 416-427.

Caspersen, C.J. and Merritt, R.K. (1995) Physical activity trends among 26 states. Medicine and Science in Sports and Exercise 27, 713-720.

Caspersen, C.J., Pereira, M.A. and Curran, K.M. (2000) Changes in physical activity patterns in the United States by sex and cross-sectional age. Medicine and Science in Sports and Exercise 332, 1601-1609.

Cavagna, G.A., Dusman, B. and Margaria, R. (1968) Positive work done by a previously streched muscle. Journal of Applied Physiology 24, 21-32.

Cavagna, G.A., Komarek, L. and Mazzoleni, S. (1971) The mechanics of sprint running. The Journal of Physiology 217, 709-721.

Cavanagh, P.R. (1988) On “muscle action” vs “muscle contraction”. Journal of Biomechanics 22, 69.

Chelly, S.M. and Denis, C. (2001) Leg power and hopping stiffness: relationships with sprint running performance. Medicine and Science in Sports and Exercise 33, 326-33.

Colliander, E.B. and Tesch, P.A. (1990) Effects of eccentric and concentric muscle actions in resistance training. Acta Physiologica Scandinavica 140, 31-39.

Colliander, E.B. and Tesch, P.A. (1992) Effects of detraining following short term resistance training on eccentric and concentric muscle strength. Acta Physiologica Scandinavica 144, 23-29.

Coyle, E., Fering, D., Rotkins T.C., Cote III, R.W., Roby F.B., Lee, W. and Wilmore, J.H. (1981) Specificity of power improvements through slow and fast isokinetic training. Journal of Applied Physiology 51, 227-232.

Cronin, J.B., McNair, P.J. and Marshall, R.N. (2000) The role of maximal strength and load on initial power production. Medicine and Science in Sports and Exercise 32, 1763-1769.

Delecluse, C., Coppenolle, H.V., Willems, E., Leemputte, M.V., Deils, R. and Goris, M. (1995) Influence of high-resistance and high-velocity training on sprint performance. Medicine and Science in Sports and Exercise 27, 1203-1209.

Delecluse, C. (1997) Influence of strength training on sprint running performance. Sports Medicine 24, 147-156.

Delecluse, C., Roelants, M. and Verschueren, S. (2003) Strength increase after whole-body vibration compared with resistance training. Medicine and Science in Sports and Exercise 35, 1033-1041.

DeMichele, P.D., Pollock, M.L., Graves, J.E., Foster, D.N., Carpenter, D., Garzarella, L., Brechue, W. and Fulton, M. (1997) Effect of training frequency on the development of isometric torso rotation strength. Archives of Physical Medicine and Rehabilitation 78, 64-69.

Deschenes, M.R. and Kraemer, W.J. (2002) Performance and physiologic adaptations to resistance training. American Journal of Physical Medicine & Rehabilitation 81 (Suppl), S3-16.

Dishman, R.K., Sallis, J.F. and Orenstein, D. (1985) The determinants of physical activity and exercise. Public Health Reports 100, 158-171.

Dishman, R.K. (1993) Exercise adherence. In: Handbook of Research on Sport Psychology. Eds: Singer, R.N., Murphey, M. and Tennant, L.K. New York: Macmillan. 779-798.

Dishman, R.K. and Buckworth, J. (1996) Increasing physical activity: a quantitative synthesis. Medicine and Science in Sports and Exercise 28, 706-719.

Driss, T., Vandewalle, H., Quievre, J., Miller, C. and Monod, H. (2001) Effects of external loading on power output in a squat jump on a force platform: A comparison between strength and power athletes and sedentary individuals. Journal of Sports Sciences 19, 99-105.

Duda, J.L. and Tappe, M.K. (1989) Personal investment in exercise among adults: The examination of age and gender-related differences in motivational orientation. In: Ageing and motor behavior. Ed: Ostrow, A. Indianapolis: Benchmark Press. 239-256.

Earles, D.R., Judge, J.O. and Gunnarsson, O.T. (2001) Velocity training induces power-specific adaptations in highly functioning older adults. Archives of Physical Medicine and Rehabilitation 82, 872-878.

Egwu, M.O. (1996) The musculoskeletal effect of intense physical training of non-athletic youth corps conscripts. British Journal of Sports Medicine 30, 112-115.

Era, P., Lyyra, A.L., Viitasalo, J.T. and Heikkinen, E. (1992) Determinants of isometric muscle strength in men of different ages. European Journal of Applied Physiology 64, 84-91.

Evenson, K.R., Wilcox, S., Pettinger, M., Brunner, R., King, A.C. and McTiernan, A. (2002) Vigorous leisure activity through women's adult life. American Journal of Epidemiology 156, 945-953.

Ewing, J.L. Jr, Wolfe, D.R., Rogers, M.A., Amundson, M.L. and Stull, GA. (1990) Effects of velocity of isokinetic training on strength, power, and quadriceps muscle fibre characteristics. European Journal of Applied Physiology 61, 159-162.

Ezzy, D. (1993) Unemployment and mental health: A critical review. Social Science & Medicine 37, 41-52.

Feigenbaum, M.S. and Pollock, M.L. (1999) Prescription of resistance training for health and disease. Medicine and Science in Sports and Exercise 31, 38-45.

Floyd, W.F. and Silver, P.H.S. (1955) The function of the erector spinae muscles in certain movements and postures in man. The Journal of Physiology 129, 184-203.

Frontera, W.R., Hughes, V.A., Lutz, K.J. and Evans, W.J. (1991) A cross-sectional study of muscle strength and mass in 45- to 78 men and women. Journal of Applied Physiology 71, 644-650.

Frontera, W.R., Suh, D., Krivickas, L.S., Hughes, V.A., Goldstein, R. and Roubenoff, R. (2000) Skeletal muscle fiber quality in older men and women. American Journal of Physiology. Cell Physiology 279, C611- 618.

Gollhofer, A. (1987) Innervation characteristics of m.Gastrocnemicus during landing on different surfaces. In: Biomechanics XB. Ed: Jonsson, B. Chanpaign IL: Human Kinetics Publishers. 701-706.

Graves, J.E., Pollock, M.L., Foster, D., Leggett, S.H., Carpenter, D.M., Vuoso, R. and Jones, A. (1990) Effect of training frequency and specificity on isometric lumbar extension strength. Spine 15, 504-509.

Gourgoulis, V., Aggelousis, N., Kasimatis, P., Mavromatis, G. and Garas, A. (2003) Effect of a submaximal half-squats warm-up program on vertical jump ability. Journal of Strength and Conditioning Research 117, 342-344.

Grönningsäter, H. and Fasting, K. (1986) Unemployment, trait anxiety and physical exercise. Scandinavian Journal of Sports Sciences 3, 99-103.

Grzywacz, J.G. and Marks, N.F. (2001) Social inequalities and exercise during adulthood: toward an ecological perspective. Journal of Health and Social Behavior 42, 202-220.

Häkkinen, K. and Komi, P.V. (1983) Electromyographic changes during strength training and detraining. Medicine and Science in Sports and Exercise 15, 455-460.

Häkkinen, K. and Komi, P.V. (1985) The effect of explosive type strength training on electromyographic and force production characteristic of leg extensor muscles during concentric and various strech-shortening cycle exercises. Scandinavian Journal of Sports Sciences 7, 65-76.

Häkkinen, K. (1994) Neuromuscular adaptation during strength training, aging, detraining, and immobilization. Critical Reviews in Physical and Rehabilitation Medicine 6, 161-198.

Häkkinen, K. and Häkkinen, A. (1995) Neuromuscular adaptations during intensive strength training in middle-aged and elderly males and females. Electromyography and Clinical Neurophysiology 35, 137-147.

Häkkinen, K., Kallinen, K., Izquierdo, M., Jokelainen, K., Lassila, H., Mälkiä, E., Kraemer, W.J., Newton, R.U. and Alen, M. (1998) Changes in agonist-antagonist EMG muscle CSA and force during strength training in middle-aged and older people. Journal of Applied Physiology 84, 1341-1349.

Häkkinen, K., Alen, M., Kallinen, M., Newton, R.U. and Kraemer, W.J. (2000) Neuromuscular adaptation during prolonged strength training, detraining and re-strength-training in middle-aged and elderly people. European Journal of Applied Physiology 83, 51-62.

Häkkinen, K., Kraemer, W.J., Newton, R.U. and Alen, M. (2001) Changes in electromyographic activity, muscle fibre and force production characteristics during heavy resistance/power strength training in middle-aged and older men and women. Acta Physiologica Scandinavica 171, 51-62.

Harreby, M., Hesselsoe, G., Kjer, J. and Neergaard, K. (1997) Low back pain and physical exercise in leisure time in 38-year-old women: a 25-year cohort study. European Spine Journal 6, 181-186.

Helakorpi, S., Uutela, A., Prättälä, R. and Puska, P. (1998) Health behavior among Finnish adult population, Spring 1998. Publications of the National Public Health Institute B 10: Helsinki.

Hutten, M.M. and Hermens, H.J. (1997) Reliability of lumbar dynamometry measurements in patients with chronic low back pain with test-retest measurements in different days. European Spine Journal 6, 54-62.

Isotechnologies, Inc. B-200 User's Manual. (1988) Revision 2.0, Hillsborough, North Carolina: Isotechnologies Inc., USA.

Izquierdo, M., Aguado, X., Gonzalez, R., Lopez, J.L. and Häkkinen, K. (1999) Maximal and explosive force production capacity and balance in men of different ages. European Journal of Applied Physiology 79, 260-267.

Izquierdo, M., Ibanez, J., Gorostiaga, E., Garrues, M., Zuniga, A., Anton, A., Larrion, J.L. and Häkkinen, K. (1999) Maximal strength and power characteristics in isometric and dynamic actions of the upper and lower extremities in middle-aged and older men. Acta Physiologica Scandinavica 167, 57-68.

Izquierdo, M., Häkkinen, K., Ibanez, J., Garrues, M., Anton, A., Zuniga, A., Larrion, J.L. and Gorostiaga, E.M. (2001) Effects of strength training on muscle power and serum hormones in middle-aged and older men. Journal of Applied Physiology 90, 1497-1507.

Izquierdo, M., Häkkinen, K., Gonzalez-Badillo, J.J., Ibanez, J. and Gorostiaga, E.M. (2002) Effects of long-term training specificity on maximal strength and power of the upper and lower extremities in athletes from different sports. European Journal of Applied Physiology 87, 264-271.

Jones, K., Bishop, P., Hunter, G. and Fleisig, G. (2001) The effects of varying resistance-training loads on intermediate - and high - velocity - specific adaptations. Journal of Strength and Conditioning Research 15, 349-356.

Jozsi, A.C., Campbell, W.W., Joseph, L., Davey, S.L. and Evans, W.J. (1999) Changes in power with resistance training in older and younger men and women. Journals of Gerontology Series A: Biological Sciences and Medical Sciences 54, M591-M596.

Judge, L.W., Moreau, C. and Burke, J.R. (2003) Neural adaptation with sport-specific resistance training in highly skilled athletes. Journal of Sports Sciences 21, 419-427.

Kanehisa, H. and Miyashita, M. (1983) Specificity of velocity in strength training. European Journal of Applied Physiology 552, 104-106.

Kaneko, M., Fuchimoto, T., Toji, H. and Suel, K. (1983) Training effect of differing loads on the force-velocity relationship and michanical power output in human muscle. Scandinavian Journal of Sports Sciences 2, 50-55.

Kannus, P. and Jozsa, L. (1991) Histopathological changes preceding spontaneous rupture of a tendon. The Journal of Bone and Joint Surgery (American volume) 73, 1507-1525.

Kawamori, N. and Haff, G.G. (2004) The optimal training load for the development of muscular power. Journal of Strength and Conditioning Research 18, 675-684.

Kemmler, W., Engelke, K., Lauber, D., Weineck, J., Hensen, J. and Kalender, W. (2002) Exercise effects on fitness and bone mineral density in early postmenopausal women: 1-year EFOPS results. Medicine and Science in Sports and Exercise 34, 2115-2123.

Komi, P.V. (1973) Measurement of the force-velocity relationship in human muscle under concentric and eccentric contractions. Biomechanics III. Karger, Basel. 224-229.

Komi, P.V., Viitasalo, J.T., Rauramaa, R. and Vihko, V. (1978) Effects of isometric strength training on mechanical, electrical and metabolic aspects of muscle function. European Journal of Applied Physiology 40, 45-55.

Komi, P.V., Karlsson, J., Tesch, P., Suominen, H. and Heikkinen, E. (1982) Effects of heavy resistance and explosive type strength training methods on mechanical, functional and metabolic aspects of performance. In: Exercise and Sport Biology. Ed: Komi, P.V. Champaign IL: Human Kinetics. 90.

Komi, P.V. (1984) Physiological and biomechanical correlates of muscle function: effects of muscle structure and stretch-shortening cycle on force and speed. In: Exercise and Sports Sciences Reviews. Vol. 12. Ed: Terjung, R.L. Lexington, Mass.:The Collamore Press. 81-121.

Koplan, J.P., Powell, K.E., Sikes, R.K., Shirley, R.W. and Campbell, C.C. (1982) An epidemiologic study of the benefits and risks of running. The Journal of The American Medical Association 248, 3118-3121.

Korhonen, M., Mero, A. and Suominen, H. (2003) Age-related differences in 100-m sprint performance in male and female master runners. Medicine and Science in Sports and Exercise 335, 1419-1428.

Kraemer, W.J. (1997) A series of studies: the physiological basis for strength training in American football: fact over philosophy. Journal of Strength and Conditioning Research 11, 131-142.

Kraemer, W.J., Keuning, M., Ratamess, N.A., Volek, J.S., McCormick, M., Bush, J.A., Nindl, B.C., Gordon, S.E., Mazzetti, S.A., Newton, R.U., Gomez, A.L., Wickman, R.B., Rubin, M.R. and Häkkinen, K. (2001) Resistance training combined with bench-step aerobics enhances women's health profile. Medicine and Science in Sports and Exercise 33, 259-269.

Kraemer, W.J., Adams, K., Cafarelli, E., Dudley, G.A., Dooly, C., Feigenbaum, M.S., Fleck, S.J., Franklin, B., Fry, A.C., Hoffman, R.R., Newton, R.U., Potteiger, J., Stone, M.H., Ratamess, R.A. and Triplett-McBride, T. (2002) American College of Sports Medicine Position Stand on progression models in resistance training for healthy adults. Medicine and Science in Sports and Exercise 34, 364-380.

Kujala, U.M., Viljanen, T., Taimela, S. and Viitasalo, J.T. (1994) Physical activity, VO2max, and jumping height in an urban population. Medicine and Science in Sports and Exercise 26, 889-895.

Kuorinka, I., Jonsson, B., Kilbom, Å., Vinterberg, H., Biering-Sörensen, F., Andersson, G. and Jörgensen, K. (1987) Standardised Nordic questionnaires for the analysis of musculoskeletal symptoms. Applied Ergonomics 18, 233-237.

Kyröläinen, H., Häkkinen, K., Komi, P.V., Kim, D.H. and Cheng, S. (1989) Prolonged power training of stretch-shortening cycle exercises in females: neuromuscular adaptation and changes in mechanical performance of muscles. Journal of Human Movement Studies 17, 9-22.

Lahad, A., Malter, A.D., Berg, A.O. and Deyo, R.A. (1994) The effectiveness of four interventions for the prevention of back pain. The Journal of The American Medical Association 272, 1286-1291.

Lee, J.H., Ooi, Y. and Nakamura, K. (1995) Measurement of muscle strength of the trunk and the lower extremities in subjects with history of low back pain. Spine 220, 1994-1996.

Lexell, J., Taylor, C.C. and Sjöström, S. (1988) What is the cause of the ageing atrophy? Journal of the Neurological Sciences 84, 275-294.

Linnamo, V., Newton, R.U., Häkkinen, K., Komi, P.V., Davie, A., McGuigan, M. and Triplett-McBride, T. (2000) Neuromuscular responses to explosive and heavy resistance loading. Journal of Electromyography and Kinesiology 10, 417-424.

Little, J.C. (1969) The athlete's neurosis: a deprivation crisis. Acta Phychiatrica Scandinavica 45, 187-197.

Lundberg, O. and Manderbacka, K. (1996) Assessing reliability of a measure of self-rated health. Scandinavian Journal of Social Medicine 24, 218-224.

Lysens, R.J., de Weert, W. and Nieuwboer, A. (1991) Factors associated with injury proneness. Sports Medicine 112, 281-289.

Madsen, O.R. (1996) Torque, total work, power, torque acceleration energy and acceleration time assessed on a dynamometer: reliability of knee and elbow extensor and flexor strength measurements. European Journal of Applied Physiology 774, 206-210.

Manderbacka, K. (1998) Examining what a self-rated health question is understood to mean by respondents. Scandinavian Journal of Public Health 26,145-53.

Manderbacka, K., Lundberg, O. and Martikainen, P. (1999) Do risk factors and health behaviours contribute to self-ratings of health. Social Science & Medicine 48, 1713-1720.

Manning, J.M., Dooly-Manning, D. and Perrin, D.H. (1988) Factor analyses of various anaerobic power tests. Journal of Sports Medicine 28, 138-144.

Margaria, R., Aghemo, P. and Rovelli, E. (1966) Measurement of muscular power in man. Journal of Applied Physiology 21, 1662-1664.

Marx, J.O., Ratamess, N.A., Nindl, B.C., Gotshalk, L.A., Volek, J.S., Dohi, K., Bush, J.A., Gomez, A.L., Mazzetti, S.A., Fleck, S.J., Häkkinen, K., Newton, R.U. and Kraemer, W.J. (2001) Low-volume circuit versus high-volume periodized resistance training in women. Medicine and Science in Sports and Exercise 33, 635-643.

Mattila, M., Hurme, M., Alaranta, H., Paljärvi, L., Kalimo, H., Falck, B., Lehto, M., Einola, S. and Järvinen, M. (1986) The multifidus muscle in patients with lumbar disc herniation. A histochemical and morphometric analysis of intraoperative biopsies. Spine 11, 732-738.

Maud, P.J. and Schultz, B.B. (1986) Gender comparisons in anaerobic power and capacity tests. British Journal of Sports Medicine 20, 51-54.

Maugham, R., Gleeson, M. and Greenhaff, P.L. (1997) Biochemistry of exercise & training. Oxford University Press pp. 12-13.

Mazzetti, S.A., Kraemer, W.J., Volek, J.S., Duncan, N.D., Ratamess, N.A., Gomez, A.L., Newton, R.U., Häkkinen, K. and Fleck, S.J. (2000) The influence of direct supervision of resistance training on strength performance. Medicine and Science in Sports and Exercise 332, 1175-1184.

Mayer, T.G., Gatchel, R.J., Kishino, N., Keeley, J., Capra, P., Mayer, H., Barnett, J. and Mooney, V. (1985) Objective assessment of spine function following industrial injury: A prospective study with comparison group and one-year follow up. Spine 10, 482-493.

McBride, J.M., Triplett-McBride, T., Davie, A. and Newton, R.U. (2002) The effect of heavy- Vs. light-load jump squats on the devlopment of strength, power, and speed. Journal of Strength and Conditioning Research 116, 75-82.

Mero, A., Luhtanen, P., Viitasalo, J.P. and Komi, P.V. (1981) Relationships between the maximal running velocity, muscle fiber characteristics, force production and force relaxation of sprinters. Scandinavian Journal of Sports Sciences 3, 16-22.

Mero, A. and Komi, P.V. (1985) Effects of supramaximal velocity on biomechanical variables in sprinting. International Journal of Sport Biomechanics 1, 240-252.

Mero, A. and Komi, P.V. (1986) Force-, EMG-, and elasticity-velocity relationship at submaximal and supramaximal running speeds in sprinters. European Journal of Applied Physiology 55, 553-561.

Metter, E.J., Conwit, R., Tobin, J. and Fozard, J.L. (1997) Age-associated loss of power and strength in the upper extremities in women and men. The Journals of Gerontology (Series A, Biological sciences and medical sciences) 52, B267-276.

Moffroid, M., Whipple, R., Hofkosh, J., Lowman, E. and Thistle, H. (1969) Study of isokinetic exercise. Physical Therapy 49, 735-747.

Moir, G., Button, C., Glaister, M. and Stone, M.H. (2004) Influence of familiarization on the reliability of vertical jump and acceleration sprinting performance in physically active men. Journal of Strength and Conditioning Research 18, 276-282.

Moritani, T. and DeVries, H.A. (1979) Neural factors versus hypertrophy in the time course of muscle strength gain. American Journal of Physical Medicine & Rehabilitation 58, 115-130.

Moritani, T., Muro, M., Ishida, K. and Taguchi, S. (1987) Electrophysiological analyses of the effects of muscle power training. Research Journal Physiology 1, 23-32.

Morrissey, M.C., Harman, E.A. and Johnson, M.J. (1995) Resistance training modes: specificity and effectiveness. Medicine and Science in Sports and Exercise 227, 648-660.

Moss, B.M., Refsnes, A., Abildgaard, K., Nicolaysen, K. and Jensen, J. (1997) Effects of maximal effort strength training with different loads on dynamic strength, cross-sectional area, load-power and load-velocity relationships. European Journal of Applied Physiology 775, 193-199.

Moum, T. (1992) Self-assessed health among Norwegian adults. Social Science & Medicine 35, 935-47.

Murphy, A.J., Wilson, G.J. and Pryor, J.F. (1994) Use of the iso-inertial force mass relationship in the prediction of dynamic human performance. European Journal of Applied Physiology 69, 250-257.

Narici, M.V., Roi, G.S., Landoni, L., Minetti, A.E. and Cerretelli, P. (1989) Changes in force, cross-sectional area and neural activation during strength training and detraining of the human quadriceps. European Journal of Applied Physiology 59, 310-319.

Newton, R.U., Häkkinen, K., Häkkinen, A., McCormick, M., Volek, J. and Kraemer, W.J. (2002) mixed-methods resistance training increases power and strength of young and older men. Medicine and Science in Sports and Exercise 34, 1367-1375.

Norris, R., Carroll, D. and Cochrane, R. (1990) The effects of aerobic and anaerobic training on fitness, blood pressure, and psychological stress and well-being. Journal of Psychosomatic Research 34, 367-75.

Norvell, N. and Belles, D. (1993) Psychological and physical benefits of circuit weight training in law enforcement personnel. Journal of Consulting and Clinical Psychology 61, 520-527.

Nummela, A. (1996) A new laboratory test method for estimating anaerobic performance characteristics with special reference to sprint running. Studies in sport, physical education and health. Academic dissertation. Jyväskylä, Finland.

Osternig, L.R., Bates, B.T. and James, S.L. (1977) Isokinetic and isometric force relationships. Archives of Physical Medicine and Rehabilitation 58, 254-257.

Parnainapour, M., Li, F., Nordin, M. and Frankel, V. (1989) Reproducibility of trunk isoinertial performances in the sgittal, coronal and transverse planes. Bulletin of the Hospital for Joint Diseases Orthopaedic Institute 49, 148-154.

Pate, R.R., Pratt, M., Blair, S.N., Haskell, W.L., Macera, C.A., Bouchard, C., Buchner, D., Ettinger, W., Heath, G.W., King, A.C. et al. (1995) Physical activity and public health. A recommendation from the Centers for Disease Control and Prevention and the American College of Sports Medicine. The Journal of The American Medical Association 5, 402-407.

Pedersen, M.T., Essendrop, M., Skotte, J.H., Jorgensen, K. and Fallentin, N. (2004) Training can modify back muscle response to sudden trunk loading. European Spine Journal 13, 548-552.

Perri, M.G., Anton, S.D., Durning, P.E., Ketterson, T.U., Sydeman, S.J., Berlant, N.E., Kanasky, W.F. jr, Newton, R.L. jr, Limacher, M.C. and Martin A.D. (2002) Adherence to exercise prescriptions: effects of prescriping moderate versus higher levels of intensity and frequency. Health Psychology 21, 452-458.

Pollock, M.L., Leggett, S.H., Graves, J.E., Jones, A., Fulton, M. and Cirulli, J. (1989) Effect of resistance training on lumbar extension strength. The American Journal of Sports Medicine 17, 624-629.

Pollock, M.L., Gaesser, G.A., Butcher, J.D., Despres, J.-P., Dishman, R.K., Franklin, B.A. and Garber, C.E. (1998) The recommended quantity and quality of exercise for developing and maintaining cardiorespiratory and muscular fitness, and flexibility in healthy adults. Position stand. Medicine and Science in Sports and Exercise 6, 975-991.

Proctor, D.N., Sinning, W.E., Walro, J.M., Sieck, G.C. and Lemon, P.W.R. (1995) Oxidative capacity of human muscle fiber types: effects of age and training status. Journal of Applied Physiology 78, 2033-2038.

Prohaska, J.O. and Clemente, C.C. (1983) Stages and processes of self-change of smoking toward an integrative model of change. Journal of Consulting and Clinical Psychology 51, 390-395.

Robison, J.I. and Rogers, M.A. (1994) Adherence to exercise programmes. Recommendations. Sports Medicine 17, 39-52.

Ross, A., Leveritt, M. and Riek, S. (2001) Neural influences on sprint running. Sports Medicine 31, 409-425.

Rusko, H., Nummela, A. and Mero, A. (1993) A new method for the evaluation of anaerobic power in athletes. European Journal of Applied Physiology 66, 97-101.

Rusko, H.K. and Nummela, A. (1996) Measurement of maximal and submaximal anaerobic performance capacity: concluding chapter. International Journal of Sports Medicine 17, S125-S129.

Rytökoski, U., Karppi, S.-L., Puukka, P., Soini, J. and Rönnemaa, T. (1994) Measurement of low back mobility, isoinertial performance with Isostation B-200 triaxial dynamometer: Reproducibility of measurement and development of functional indices. Journal of Spinal Disorders 7, 54-61.

Sale, D.G. (1988) Neural adaptations to resistance training. Medicine and Science in Sports and Exercise 20, S135- S145.

Sallis, J.F. (2000) Age-related decline in physical activity: a synthesis of human and animal studies. Medicine and Science in Sports and Exercise 332, 1598-1600.

Samson, M.M., Meeuwsen, I.B., Crowe, A., Dessens, J.A., Duursma, S.A. and Verhaar, H.J. (2000) Relationships between physical performance measures, age, height and body weight in healthy adults. Age and Ageing 29, 235-242.

SAS/STAT. (1989) User's guide, version 6. 8th edition vol. 1. SAS Institute Inc. USA.

Savinainen, M., Nygård, C.-H., Korhonen, O. and Ilmarinen, J. (2004) Changes in physical capacity among middle-aged municipal employees over 16 years. Experimental Aging Research 30, 1-22.

Schmidtbleicher, D. and Gollhofer, A. (1982) Neuromuskuläre Untersuchungen zur Bestimmung, individueller Belastungsgrössen fur ein Teifsprungtraining. Leistungssport 12, 298.

Schmidtbleicher, D. (1988) Muscular mechanics and nuromuscular control. In: Swimming science V International Series Sport Science. Eds.: Ungerechts, B.E., Wilke, K. and Reischle, K. Champaign IL: Human Kinetics. 131-148.

Scutter, S., Fulton. I., Trott, P., Parnianpour, M., Grant, R. and Brien, C. (1995) Effects of various isoresistive training programmes on trunk muscle performance. Clinical Biomechanics 7, 379-384.

Shephard, R.J. and Bouchard, C. (1995) Relationships between perceptions of physical activity and health-related fitness. The Journal of Sports Medicine and Physical Fitness 35, 149-158.

Skelton, D.A., Kennedy, J. and Rutherford, O.M. (2002) Explosive power and asymmetry in leg muscle function in frequent fallers and non-fallers aged over 65. Age and Ageing 31, 119-125.

Sleivert, G.G., Bachus, R.D. and Wenger, H.A. (1995) The influence of a strength sprint training sequence on multi joint power output. Medicine and Science in Sports and Exercise 27, 1655-1665.

Smith, A.M. (1996) Psychological impact of injuries in athletes. Sports Medicine 22, 391-405.

Sörensen, M., Anderssen, S., Hjerman, I., Holme, I. and Ursin, H. (1997) Exercise and diet interventions improve perceptions of self in middle-aged adults. Scandinavian Journal of Medicine & Science in Sports 7, 312-320.

Staron, R.S. (1997) Human skeletal muscle fiber types: delineation, development and distribution. Canadian Journal of Applied Physiology 22, 307-327.

Staron, R.S., Karapondo, D.L., Kraemer, W.J., Fry, A.C., Gordon, S.E., Falkel, J.E., Hagerman, F.C. and Hikida, R.S. (1994) Skeletal muscle adaptations during early phase of heavy-resistance training in men and women. Journal of Applied Physiology 76, 1247-1255.

Stone, M.H., O'Bryant, H.S., McCoy, L., Goclianese, R., Lehmkuhl, M. and Schilling, B. (2003) Power and maximum strength relationships during performance of dynamic and static weighted jumps. Journal of Strength and Conditioning Research 17, 140-147.

Suzuki, N. and Endo, S. (1983) A quantitative study of trunk muscle strength and fatigability in the low-back pain syndrome. Spine 8, 69-74.

Trost, S.G., Owen, N., Bauman, A.E., Sallis, J.F. and Brown, W. (2002) Correlates of adults' participation in physical activity:review and update. Medicine and Science in Sports and Exercise 34, 1996-2001.

Troup, J.D.G. (1986) Biomechanics of the lumbar spinal canal. Clinical Biomechanics 1, 31-43.

Tsutsumi, T., Don, B.M., Zaichkowsky, L.D. and Delizonna, L.L. (1997) Physical fitness and psychological benefits of strength training in community dwelling older adults. Applied Human Science: Journal of Physiological Anthropology 16, 257-266.

Tucci, J.T., Carpenter, D.M., Pollock, M.L., Graves, J.E. and Leggett, S.H. (1992) Effect of reduced frequency of training and detraining on lumbar extension strength. Spine 17, 1497-1501.

Tuite, D.J., Rehnström, P.A. and O'Brien, M. (1997) The aging tendon. Scandinavian Journal of Medicine & Science in Sports 7, 72-77.

Uitenbroek, D.G. (1996) Sports, exercise and other causes of injuries: Results of a population survey. Research Quarterly for Exercise and Sport 67, 380-385.

Vailas, A.C. and Vailas, J.C. (1994) Physical activity and connective tissue. In: Physical activity, fitness and health. Eds: Bouchard, C., Shephard, R.J. and Stephens, T. Champaign IL: Human Kinetics Publishers. pp. 369-382.

Vandewalle, H., Peres, G. and Monod, H. (1987) Standard anaerobic exercise tests. Sports Medicine 4, 268-289.

Van Mechelen, W., Hlobil, H. and Kemper, C.G. (1992) Incidence, severity, etiology and prevention of sports injuries: a review of concepts. Sports Medicine 114, 82-99.

Van Mechelen, W., Twisk, J., Molendijk, A., Blom, B., Snel, J. and Kemper, H.C. (1996) Subject-related risk factors for sports injuries: a 1-yr prospective study in young adults. Medicine and Science in Sports and Exercise 28, 1171-1179.

Viljanen, T., Viitasalo, J.T. and Kujala, U.M. (1991) Strength characteristics of a healhty urban adult population. European Journal of Applied Physiology 63, 43-47.

Whooley MA, Kiefe CI, Chesney MA, Markovitz JH, Matthews K and Hulley SB. (2002) Depressive symptoms, unemployment, and loss of income: the CARDIA study. Archives of Internal Medicine 162, 2614-2620.

Wilson, G., Wood, G. and Elliot, B. (1991) The performance augmentation achieved from use of the strech-shorten cycle: The neuromuscular contribution. The Australian Journal of Science and Medicine in Sport 23, 97-101.

Wilson, S.H. and Walker, G.M. (1993) Unemployment and health: A review. Public Health 107,153-62

Wilson, G.J., Newton, R.U., Murphy, A.J. and Humphries B.J. (1993) The optimal training load for the development of dynamic athletic performance. Medicine and Science in Sports and Exercise 25, 1279-1286.

Wilson, G.J., Murphy, A.J. and Walshe, A. (1996) The specificity of strength training: the effect of posture. European Journal of Applied Physiology 73, 346-352.

Winters-Stone, K.M. and Snow, C.M. (2003) Musculoskeletal responses to exercise is greatest in women with low initial values. Medicine and Science in Sports and Exercise 35, 1691-1696.

Wolinsky, F.D. and Johnson, R.J. (1992) Perceived health status and mortality among older men and women. Journal of Gerontology 47, S304-S312.

Yen, I.H. and Kaplan, G.A. (1998) Poverty area residence and changes in physical activity level. Evidence from the Alameda county study. American Journal of Public Health 88, 1709-1712.

Young, W., McLean, B. and Ardagna, J. (1995) Relationships between strength qualities and sprinting performance. The Journal of Sports Medicine and Physical Fitness 35, 13-19.

Zhu, X.-Z., Parnianpour, M., Nordin, M. and Kahanovitz, N. (1989) Histochemistry and morphology of erector spinae muscle in lumbar disc herniation. Spine 14, 391-397.