Lehmann, M. P. et al. Training-Overtraining: An Overview and Experimental Results in Endurance Sports // Journal of Sports Medicine and Physical Fitness 37, no. 1 (1997): 7–17.

Lehmann, M. P. et al. Training-Overtraining: Influence of a Defined Increase in Training Volume vs. Training Intensity on Performance, Catecholomines and Some Metabolic Parameters in Experienced Middle– and Long-Distance Runners // European Journal of Applied Physiology 64 (1992): 169–177.

Lemon, P. W. R. Is Increased Dietary Protein Necessary or Beneficial for Individuals with a Physically Active Lifestyle? // Nutrition Reviews 54, no. 4 (1996): S169-S175.

Lemon, P. W. R. Protein and Amino Acid Needs of the Strength Athlete // International Journal of Sports Nutrition 1 (1991): 127–145.

Loehr, J. Mental Toughness Training for Sports. New York: Stephen Greene Press, 1982.

Loehr, J. The New Mental Toughness Training for Sports. New York: Penguin Books, 1995.

Lynch, J. Creative Coaching. Champaign, IL: Human Kinetics, 2001.

Lynch, J. Running Within. Champaign, IL: Human Kinetics, 1999.

Lynch, J. Thinking Body, Dancing Mind. New York: Bantam Books, 1992.

Lynch, J. The Total Runner. Upper Saddle River, NJ: Prentice Hall, 1987.

Lynch, J., and Huang, C. A. Working Without, Working Within. New York: Tarcher & Putnam, 1998.

MacDougal, J. D. et al. The Time Course for Elevated Muscle Protein Synthesis following Heavy Resistance Exercise // Canadian Journal of Applied Physiology 20, no. 4 (1995): 480–486.

MacIntyre, J. G. Growth Hormone and Athletes // Sports Medicine 4 (1987): 129.

MacLaren, C. P. et al. A Review of Metabolic and Physiologic Factors in Fatigue // Exercise and Sports Science Review 17 (1989): 29.

Maglischo, E. Swimming Faster. Mountain View, CA: Mayfield, 1982.

Malarkey, W. B. et al. The Influence of Age on Endocrine Responses to Ultraendurance Stress // Journal of Gerontology 48, no. 4 (1993): M134–139.

Malwa, R. M. Growth and Maturation: Normal Variation and Effect of Training // Perspectives in Exercise Science and Sports Medicine: Youth, Exercise and Sport / ed. C. V. Gisolfi, D. R. Lamb. Carmel, IN: Benchmark Press, 1989.

Marcinik, E. J. et al. Effects of Strength Training on Lactate Threshold and Endurance Performance // Medicine and Science in Sports and Exercise 23, no. 6 (1991): 739–743.

Martin, D. E., and Coe, P. N. Better Training for Distance Runners. Champaign, IL: Human Kinetics, 1997.

Martin, D. E., and Coe, P. N. Training Distance Runners. Champaign, IL: Leisure Press, 1991.

Matzen, L. E. et al. Different Short-Term Effects of Protein and Carbohydrate Intake on TSH, GH, Insulin and Glucagon // Scandinavian Journal of Clinical and Laboratory Investigation 50, no. 11 (1990): 801–805.

Maughan, R. J. Creatine Supplementation and Exercise Performance // International Journal of Sports Nutrition 5 (1995): 94–101.

Mayhew, J., and Gross, P. Body Composition Changes in Young Women and High Resistance Weight Training // Research Quarterly 45 (1974): 433–440.

McArdle, W., Katch, F., and Katch, V. Exercise Physiology. Baltimore: Williams & Wilkins, 1996.

McCarthy, J. P. et al. Compatibility of Adaptive Responses with Combining Strength and Endurance Training // Medicine and Science in Sports and Exercise 27, no. 3 (1995): 429–436.

McMurtrey, J. J., and Sherwin, R. History, Pharmacology and Toxicology of Caffeine and Caffeine-Containing Beverages // Clinical Nutrition 6 (1987): 249–254.

Messier, S. P., and Cirillo, K. J. Effects of a Verbal and Visual Feedback System on Running Technique, Perceived Exertion, and Running Economy in Female Novice Runners // Medicine and Science in Sports and Exercise 21, no. 2 (1989): 80.

Milne, C. The Tired Athlete // New Zealand Journal of Sports Medicine 19, no. 3 (1991): 42–44.