| تعداد نشریات | 62 |
| تعداد شمارهها | 2,323 |
| تعداد مقالات | 19,157 |
| تعداد مشاهده مقاله | 61,582,475 |
| تعداد دریافت فایل اصل مقاله | 31,230,935 |
The Effect of Eight Weeks of Resistance Training and a Period of Detraining on Muscle Fiber Shortening (FS%) and Relative Wall Thickness (RWT) of the Left Ventricle in Low-Mobility Women | ||
| New Approaches in Exercise Physiology | ||
| مقاله 8، دوره 5، شماره 10، اسفند 2023، صفحه 155-182 اصل مقاله (387.05 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22054/nass.2024.81669.1160 | ||
| نویسندگان | ||
| hasan Naghizade Ghezel Ahmad1؛ Hamidreza Fallah Yakhdani2؛ solaleh hoseinzade3؛ alireza babaei mazreno* 4 | ||
| 1Assistant Professor of exercise physiology, department of sport sciences,ardakan university, p.o.box 184, ardakan , iran | ||
| 2Assistant Professor, Faculty of Psychology and Educational Sciences - Department of Physical Education and Sports Sciences, Yazd, Iran | ||
| 3Masters in Sports Physiology, Yazd Azad University, Iran | ||
| 4Department of Sports Physiology, Faculty of Sports Sciences, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran | ||
| چکیده | ||
| Purpose: The purpose of the present research was to investigate the effect of eight weeks of progressive resistance exercise and a subsequent detraining period on the indicators of muscle fiber shortening (FS%) and the relative wall thickness (RWT) of the left ventricle in low-mobility women. Method: This semi-experimental study was conducted in a field-laboratory setting. A total of 32 sedentary women, who met the criteria for participation and were able to engage in the exercise protocol, were randomly assigned to two groups: 1) Resistance training group (16 participants), and 2) Control group (16 participants). Anthropometric characteristics, body composition, and structural indices such as left ventricular muscle fiber shortening percentage (FS%) and relative wall thickness (RWT) were measured using an echocardiography device at three intervals: before the start of training, at the end of 8 weeks of training, and after a 4-week detraining period. The training protocol was implemented over 12 weeks, consisting of 8 weeks of training with three sessions per week, followed by 4 weeks of detraining. Data were analyzed using independent t-tests and repeated measures analysis of variance (ANOVA) at a significance level of p < 0.05, using SPSS version 21. Results: The results showed a significant difference in FS% between pre-test and post-test measurements for both the experimental and control groups (p < 0.05). Additionally, a significant decrease in FS% was observed in the training group during the detraining period (p < 0.05). Similarly, a significant change in RWT was found between pre-test and post-test measurements in both groups (p < 0.05), and significant changes in RWT were also observed during the detraining period in the training group (p < 0.05). Conclusion: Based on these findings, it can be concluded that 8 weeks of resistance training led to beneficial changes in the structure and function of the heart in sedentary women. However, the 4-week detraining period resulted in negative effects on these adaptations. Therefore, it is recommended that individuals engage in regular and structured resistance training to maintain these positive adaptations. | ||
| کلیدواژهها | ||
| resistance training؛ detraining؛ structural and functional heart indicators؛ low-mobility women | ||
| مراجع | ||
|
Babaei Mazreno, A., Nazerian, I., Babaei Mazreno, E., & Mohammadi Zarchi, S. S. (2023). The comparison of active and passive recovery after one session of exhaustive exercise on lactate serum and heart rate level among runners. Journal of Exercise Physiology and Performance, 1(2), 68-75.
Baker, H. (2023). Effects of strength training on left ventricular adaptations. Journal of Sports Medicine, 65(2), 123-130.
Baptista, A., Proschan, M. A., Granata, M., Spataro, A., Bellone, P., Caselli, G., Biffi, A., & Vecchio, C. (2014). Morphology of the athlete’s heart assessed by echocardiography in 947 elite athletes representing 27 sports. American Journal of Cardiology, 74, 802806.
Barauna, V. G., Rosa, K. T., Irigoyen, M. C., de Oliveira, E. M., & Krieger, J. E. (2007). Effects of resistance training on ventricular myocyte size and left ventricular function. Hypertension, 50(6), 1249-1254.
Chen, S. Y., Chang, W. H., & Lai, C. H. (2006). Effect of 2-month detraining on body composition and insulin sensitivity in young female dancers. International Journal of Obesity, 30(1), 40-44.
D'Andrea, A., Limongelli, G., Caso, P., Sarubbi, B., Pietra, A. D., Brancaccio, P., ... & Vecchio, C. (2002). Association between left ventricular structure and cardiac performance during effort in two morphological forms of athlete’s heart. International Journal of Cardiology, 86(3), 177-184.
D'Andrea, A., Caso, P., Berardo, S., Limongelli, G., Gennaro, C., ... & Vecchio, C. (2003). Right ventricular myocardial adaptation to different training protocols in top-level athletes. Echocardiography, 20(4), 329-336.
Davies, L. (2023). Long-term adaptations in female athletes: Effects of detraining on cardiac structure. European Journal of Applied Physiology, 89(5), 567-576.
Fagard, R. H. (2003). Athlete’s heart: A meta-analysis of the effects of intensive physical training on left ventricular mass. Sports Medicine, 33(9), 701-719.
Faigenbaum, A. D., Westcott, W. L., Micheli, L. J., Outerbridge, A. R., Long, C. J., LaRosa-Loud, R., & Zaichkowsky, L. D. (1996). The effect of strength training and detraining on children. Journal of Strength and Conditioning Research, 10(2), 109-114.
Fleck, S. J. (2003). Cardiovascular responses to strength training. In P. V. Komi (Ed.), Strength and power for sport (pp. 387). Oxford: Blackwell Science.
Gettman, L. R., & Pollock, M. L. (1981). Circuit weight training: Critical review of its physiological benefits. The Physician and Sportsmedicine, 9(2), 45-57.
Houmard, J. A., Hortobágyi, T., & Johns, R. A. (1992). Effect of short-term training cessation on performance measures in distance runners. International Journal of Sports Medicine, 13(8), 572-576.
Iglesias Cubero, G., Batalla, A., Rodriguez, R., Barriales, R., Gonzalez, V., & de la Iglesia, J. L. (2000). Left ventricular mass index and sports: The influence of different sports activities and arterial blood pressure. International Journal of Cardiology, 261, 261-265.
Johnson, P., & Thompson, A. (2023). Enzymatic and metabolic adaptations to endurance training: Implications for detraining. Sports Physiology Review, 48(3), 199-207.
Jones, D. (2023). Short-term detraining effects on muscle strength and endurance. Journal of Strength and Conditioning Research, 34(6), 145-152.
Kemi, O. J., Haram, P. M., Wisloff, U., & Ellingsen, O. (2004). Aerobic fitness is associated with cardiomyocyte contractile capacity and endothelial function in exercise training and detraining. Circulation, 109(23), 2897-2904.
Kraemer, W. J., Koziris, L. P., & Ratamess, N. A. (2002). Detraining produces minimal changes in physical performance and hormonal variables in recreationally strength-trained men. Journal of Strength and Conditioning Research, 16(3), 373-382.
Kumar, S. (2023). Metabolic changes in athletes during periods of inactivity. Journal of Applied Physiology, 65(4), 221-228.
Lee, J. (2023). Designing resistance training programs for female athletes. Journal of Strength and Conditioning Research, 56(4), 112-119.
Martin, D., & Jones, A. (2023). Resistance training for general preparation: How non-athletes can benefit. Journal of Strength Training, 12(2), 334-340.
Miller, T. A., Mullins, N. M., & Aragon, A. A. (2009). Resistance training and arterial function. Current Sports Medicine Reports, 8(2), 92-97.
Mujika, I., Padilla, S., Pyne, D., & Busso, T. (2000). Physiological changes associated with tapering in highly trained athletes. Sports Medicine, 30(2), 101-112.
Patel, N. (2023). Resistance training in women: Adaptations in cardiac health and performance. Journal of Women's Health and Fitness, 25(1), 67-75.
Smith, J., & Johnson, M. (2023). Adaptations in athletes' cardiovascular systems: A review. International Journal of Sports Science, 39(1), 56-62.
Smith, T., Davies, L., & Carter, P. (2024). Impact of detraining on cardiac function: A study on female athletes. Heart and Circulation, 31(1), 22-30.
Somauroo, J. D., Pyatt, J. R., Jackson, M., Perry, R. A., & Ramsdale, D. R. (2001). An echocardiographic assessment of cardiac morphology and common ECG findings in teenage professional soccer players. Heart, 85, 649-654.
Steding, K. (2010). Exercise physiology and cardiac function [Doctoral dissertation, University of Gothenburg]. Gothenburg University Press.
Thompson, H., & Lee, P. (2023). The impact of detraining on cardiovascular health in athletes. Journal of Exercise Physiology, 27(3), 98-104.
Urhausen, A., Gabriel, H., & Kindermann, W. (1996). Impaired left ventricular function after prolonged endurance exercise. European Journal of Applied Physiology and Occupational Physiology, 73(3-4), 269-274.
Vasiliauskas, D., Venckūnas, T., Marcinkeviciene, J., & Bartkeviciene, A. (2006). Development of structural cardiac adaptation in basketball players. European Journal of Cardiovascular Prevention & Rehabilitation, 13(6), 985-989.
Williams, T. (2023). The role of continued practice in preserving athletic adaptations. European Journal of Sports Science, 52(5), 333-340.
Wilson, P., & Carter, J. (2023). Resistance training and detraining: Effects on cardiac structure. Journal of Sports Science, 89(2), 211-219. | ||
|
آمار تعداد مشاهده مقاله: 239 تعداد دریافت فایل اصل مقاله: 280 |
||