Skeletal muscle mass in competitive physique-based athletes (bodybuilding, 212 bodybuilding, bikini, and physique divisions): A case series.
Journal
American journal of human biology : the official journal of the Human Biology Council
ISSN: 1520-6300
Titre abrégé: Am J Hum Biol
Pays: United States
ID NLM: 8915029
Informations de publication
Date de publication:
10 Aug 2023
10 Aug 2023
Historique:
revised:
24
07
2023
received:
24
04
2023
accepted:
31
07
2023
medline:
11
8
2023
pubmed:
11
8
2023
entrez:
11
8
2023
Statut:
aheadofprint
Résumé
(1) To examine the muscle thickness of various muscle groups of the body to estimate the absolute and relative skeletal muscle mass (SM) in competitive physique-based athletes (Bodybuilding, 212 Bodybuilding, Bikini, and Physique divisions) and (2) to compare values across various divisions of competition and to resistance trained and non-resistance trained individuals. Eight competitive physique-based athletes (2 M and 6 F), two recreationally resistance trained (1 M and 1 F) and two non-resistance trained (1 M and 1 F) participants had muscle thickness measured by ultrasound at nine sites on the anterior and posterior aspects of the body. SM was estimated from an ultrasound-derived prediction equation and SM index was used to adjust for the influence of standing height (i.e., divided by height squared). SM values ranged from 19.6 to 60.4 kg in the eight competitive physique-based athletes and 16.1 to 32.6 kg in the four recreationally resistance trained and non-resistance trained participants. SM index ranged from 7.2 to 17.9 kg/m Overall, varying magnitudes of SM and SM index were present across competitors and their respective divisions of bodybuilding. The Men's Open Bodybuilder in the present study had greater values of total SM and SM index compared to previously published values in the literature. Our data provides insight into the extent of SM present in this population and further extends the discussion regarding SM accumulation in humans.
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
e23978Informations de copyright
© 2023 Wiley Periodicals LLC.
Références
Abe, T., Brechue, W. F., Fujita, S., & Brown, J. B. (1998). Gender differences in FFM accumulation and architectural characteristics of muscle. Medicine and Science in Sports and Exercise, 30(7), 1066-1070.
Abe, T., Buckner, S. L., Dankel, S. J., Jessee, M. B., Mattocks, K. T., Mouser, J. G., & Loenneke, J. P. (2018). Skeletal muscle mass in human athletes: What is the upper limit? American Journal of Human Biology, 30(3), e23102.
Abe, T., Buckner, S. L., Mattocks, K. T., Jessee, M. B., Dankel, S. J., Mouser, J. G., Bell, Z. W., & Loenneke, J. P. (2018). Skeletal muscle mass and architecture of the world's strongest raw powerlifter: A case study. Asian Journal of Sports Medicine, 9(2), e6167.
Abe, T., Dankel, S. J., Buckner, S. L., Jessee, M. B., Mattocks, K. T., Mouser, J. G., Bell, Z. W., & Loenneke, J. P. (2018). Magnetic resonance imaging-measured skeletal muscle mass to fat-free mass ratio increases with increasing levels of fat-free mass. The Journal of Sports Medicine and Physical Fitness, 59(4), 619-623.
Abe, T., DeHoyos, D. V., Pollock, M. L., & Garzarella, L. (2000). Time course for strength and muscle thickness changes following upper and lower body resistance training in men and women. European Journal of Applied Physiology, 81(3), 174-180.
Abe, T., Kondo, M., Kawakami, Y., & Fukunaga, T. (1994). Prediction equations for body composition of Japanese adults by B-mode ultrasound. American Journal of Human Biology, 6(2), 161-170.
Abe, T., Wong, V., Dankel, S. J., Bell, Z. W., Spitz, R. W., Viana, R. B., & Loenneke, J. P. (2020). Skeletal muscle mass in female athletes: The average and the extremes. American Journal of Human Biology, 32(2), e23333.
Alves, R. C., Prestes, J., Enes, A., de Moraes, W. M., Trindade, T. B., de Salles, B. F., Aragon, A. A., & Souza-Junior, T. P. (2020). Training programs designed for muscle hypertrophy in bodybuilders: A narrative review. Sports, 8(11), 149.
Barakat, C., Escalante, G., Stevenson, S. W., Bradshaw, J. T., Barsuhn, A., Tinsley, G. M., & Walters, J. (2022). Can bodybuilding peak week manipulations favorably affect muscle size, subcutaneous thickness, and related body composition variables? A case study. Sports, 10(7), 106.
Brechue, W. F., & Abe, T. (2002). The role of FFM accumulation and skeletal muscle architecture in powerlifting performance. European Journal of Applied Physiology, 86(4), 327-336.
Brook, M. S., Wilkinson, D. J., Mitchell, W. K., Lund, J. N., Szewczyk, N. J., Greenhaff, P. L., Smith, K., & Atherton, P. J. (2015). Skeletal muscle hypertrophy adaptations predominate in the early stages of resistance exercise training, matching deuterium oxide-derived measures of muscle protein synthesis and mechanistic target of rapamycin complex 1 signaling. The FASEB Journal, 29(11), 4485-4496.
Counts, B. R., Buckner, S. L., Mouser, J. G., Dankel, S. J., Jessee, M. B., Mattocks, K. T., & Loenneke, J. P. (2017). Muscle growth: To infinity and beyond? Muscle & Nerve, 56(6), 1022-1030.
Damas, F., Phillips, S. M., Lixandrão, M. E., Vechin, F. C., Libardi, C. A., Roschel, H., Tricoli, V., & Ugrinowitsch, C. (2016). Early resistance training-induced increases in muscle cross-sectional area are concomitant with edema-induced muscle swelling. European Journal of Applied Physiology, 116(1), 49-56.
DeFreitas, J. M., Beck, T. W., Stock, M. S., Dillon, M. A., Sherk, V. D., Stout, J. R., & Cramer, J. T. (2010). A comparison of techniques for estimating training-induced changes in muscle cross-sectional area. The Journal of Strength & Conditioning Research, 24(9), 2383-2389.
Forbes, G. B. (1987). Human body composition: Growth, aging, nutrition, and activity (1st ed.). Springer.
Hackett, D. A. (2022). Training, supplementation, and pharmacological practices of competitive male bodybuilders across training phases. The Journal of Strength & Conditioning Research, 36(4), 963-970.
Huygens, W., Thomis, M. A., Peeters, M. W., Vlietinck, R. F., & Beunen, G. P. (2004). Determinants and upper-limit heritabilities of skeletal muscle mass and strength. Canadian Journal of Applied Physiology, 29(2), 186-200.
IFBB Pro. (2022). IFBB Pro. https://www.ifbbpro.com/
Kondo, M., Abe, T., Ikegawa, S., Kawakami, Y., & Fukunaga, T. (1994). Upper limit of fat-free mass in humans: A study on Japanese sumo wrestlers. American Journal of Human Biology, 6(5), 613-618.
Loenneke, J. P., Rossow, L. M., Fahs, C. A., Thiebaud, R. S., Grant Mouser, J., & Bemben, M. G. (2017). Time-course of muscle growth, and its relationship with muscle strength in both young and older women. Geriatrics & Gerontology International, 17(11), 2000-2007.
Lui, J. C., & Baron, J. (2011). Mechanisms limiting body growth in mammals. Endocrine Reviews, 32(3), 422-440.
MacDougall, J., Sale, D., Alway, S., & Sutton, J. (1984). Muscle fiber number in biceps brachii in bodybuilders and control subjects. Journal of Applied Physiology, 57(5), 1399-1403.
Maden-Wilkinson, T. M., Balshaw, T. G., Massey, G. J., & Folland, J. P. (2020). What makes long-term resistance-trained individuals so strong? A comparison of skeletal muscle morphology, architecture, and joint mechanics. Journal of Applied Physiology, 128(4), 1000-1011.
Moritani, T., & deVries, H. (1979). Neural factors versus hypertrophy in the time course of muscle strength gain. American Journal of Physical Medicine, 58(3), 115-130.
Phillips, S. M. (2000). Short-term training: When do repeated bouts of resistance exercise become training? Canadian Journal of Applied Physiology, 25(3), 185-193.
Phillips, S. M. (2014). A brief review of critical processes in exercise-induced muscular hypertrophy. Sports Medicine, 44(1), 71-77.
Ross, R., Goodpaster, B., Kelley, D., & Boada, F. (2000). Magnetic resonance imaging in human body composition research: From quantitative to qualitative tissue measurement. Annals of the new York Academy of Sciences, 904(1), 12-17.
Rossow, L. M., Fukuda, D. H., Fahs, C. A., Loenneke, J. P., & Stout, J. R. (2013). Natural bodybuilding competition preparation and recovery: A 12-month case study. International Journal of Sports Physiology and Performance, 8(5), 582-592.
Sanada, K., Kearns, C. F., Midorikawa, T., & Abe, T. (2006). Prediction and validation of total and regional skeletal muscle mass by ultrasound in Japanese adults. European Journal of Applied Physiology, 96, 24-31.
Schoenfeld, B. J., Alto, A., Grgic, J., Tinsley, G., Haun, C. T., Campbell, B. I., Escalante, G., Sonmez, G. T., Cote, G., & Francis, A. (2020). Alterations in body composition, resting metabolic rate, muscular strength, and eating behavior in response to natural bodybuilding competition preparation: A case study. The Journal of Strength & Conditioning Research, 34(11), 3124-3138.
Seynnes, O. R., de Boer, M., & Narici, M. V. (2007). Early skeletal muscle hypertrophy and architectural changes in response to high-intensity resistance training. Journal of Applied Physiology, 102(1), 368-373.
Stock, M. S., Mota, J. A., DeFranco, R. N., Grue, K. A., Jacobo, A., Chung, E., Moon, J. R., DeFreitas, J. M., & Beck, T. W. (2017). The time course of short-term hypertrophy in the absence of eccentric muscle damage. European Journal of Applied Physiology, 117(5), 989-1004.
Thomas, M., Langley, B., Berry, C., Sharma, M., Kirk, S., Bass, J., & Kambadur, R. (2000). Myostatin, a negative regulator of muscle growth, functions by inhibiting myoblast proliferation. Journal of Biological Chemistry, 275(51), 40235-40243.
Ye, X., Loenneke, J., Fahs, C., Rossow, L., Thiebaud, R., Kim, D., Bemben, M. G., & Abe, T. (2013). Relationship between lifting performance and skeletal muscle mass in elite powerlifters. The Journal of Sports Medicine and Physical Fitness, 53(4), 409-414.