Trunk Flexibility Improvement in Response to Powered Assisted Exercise

B.S. Bains, Gurujit Kaur, Hassan Sadeghi, AmeerudinGulam Husain, Karminder Singh


Background study: Flexibility in human spine has always plays an important role in dexterity and seamless ambulatory activities. When optimum range is not maintained by the trunk column, due to lack of flexibility, the posture gets affected resulting in reduce trunk rotation flexibility and mobility hence loss of complete trunk rotation. Objective: The purpose of this study is to determine the effect of Shapemaster Power Assisted Exercise Equipment (SPAEE) on trunk flexibility. Methodology: Twenty healthy individual ages between 40 to 60 years were randomly divided into control and exercise groups. Shapemaster exercise program performed two times per week for 5 weeks and 45 minutes per session. Before and after 10 sessions of Shapemaster exercise protocol, Seated trunk rotation test was used to measure trunk flexibility. Results: Repeated measurement ANOVA were used to analysis data between groups. The results of this study illustrated that after 10th sessions trunk flexibility significantly improved (F (1.0, 18) = 11.732, p < 0.003). Conclusion: In conclusion results were determined that SPAEE is safe and it did effectively enhance flexibility among individual healthy adults.

Keyword: Shapemaster Power Assisted Exercise Equipment (SPAEE), Trunk Flexibility, Healthy individual

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Aragon, V. J. (2010). A comparison of trunk rotation flexibility and trunk rotation kinematics during throwing between division I collegiate softball position players with and without a history of shoulder or elbow pain. (Masters), University of North Carolina.

Aragon, V. J., Oyama, S., Oliaro, S. M., Padua, D. A., & Myers, J. B. (2012). Trunk-rotation flexibility in collegiate softball players with or without a history of shoulder or elbow injury. Journal of athletic training, 47(5), 507.

Brassington, G. S., Atienza, A. A., Perczek, R. E., DiLorenzo, T. M., & King, A. C. (2002). Intervention-related cognitive versus social mediators of exercise adherence in the elderly. American journal of preventive medicine, 23(2), 80-86.

Claus, A. P., Hides, J. A., Moseley, G. L., & Hodges, P. W. (2016). Thoracic and lumbar posture behaviour in sitting tasks and standing: Progressing the biomechanics from observations to measurements. Applied ergonomics, 53, 161-168.

Jacobson, B. H., Smith, D., Fronterhouse, J., Kline, C., & Boolani, A. (2012). Assessment of the benefit of powered exercises for muscular endurance and functional capacity in elderly participants. Journal of Physical Activity and Health, 9(7), 1030.

Johnson, K. D., & Grindstaff, T. L. (2010). Thoracic rotation measurement techniques: clinical commentary. North American Journal of Sports Physical Therapy, 5(4), 252-256.

Johnson, K. D., Kim, K.-M., Yu, B.-K., Saliba, S. A., & Grindstaff, T. L. (2012). Reliability of thoracic spine rotation range-of-motion measurements in healthy adults. Journal of athletic training, 47(1), 52-60.

Kargarfard, M., Shariat, A., Shaw, B. S., Shaw, I., Lam, E. T., Kheiri, A., . . . Tamrin, S. B. (2015). Effects of polluted air on cardiovascular and hematological parameters after progressive maximal aerobic exercise. Lung, 193(2), 275-281.

Kerr, Z. Y., Collins, C. L., & Comstock, R. D. (2010). Epidemiology of weight training-related injuries presenting to United States emergency departments, 1990 to 2007. The American Journal of Sports Medicine, 38(4), 765-771.

Liddle, S. D., Baxter, G. D., & Gracey, J. H. (2004). Exercise and chronic low back pain: what works? Pain, 107(1), 176-190.

Montero-Fernandez, N., & Serra-Rexach, J. (2013). Role of exercise on sarcopenia in the elderly. European journal of physical and rehabilitation medicine, 49(1), 131-143.

Nagai, T., Abt, J. P., Sell, T. C., Clark, N. C., Smalley, B. W., Wirt, M. D., & Lephart, S. M. (2014). Neck proprioception, strength, flexibility, and posture in pilots with and without neck pain history. Aviation, space, and environmental medicine, 85(5), 529-535.

Nagai, T., Abt, J. P., Sell, T. C., Keenan, K. A., Clark, N. C., Smalley, B. W., . . . Lephart, S. M. (2015). Lumbar spine and hip flexibility and trunk strength in helicopter pilots with and without low back pain history. Work, 52(3), 715-722.

Phrompaet, S., Paungmali, A., Pirunsan, U., & Sitilertpisan, P. (2011). Effects of pilates training on lumbo-pelvic stability and flexibility. Asian Journal of sports medicine, 2(1), 16-22.

Purepong, N., Jitvimonrat, A., Boonyong, S., Thaveeratitham, P., & Pensri, P. (2012). Effect of flexibility exercise on lumbar angle: a study among non-specific low back pain patients. Journal of bodywork and movement therapies, 16(2), 236-243.

Sadeghi, H., Shariat, A., Asadmanesh, E., & Mosavat, M. (2013). The Effects of core stability Exercise on the dynamic balance of volleyball players. International Journal of Applied Exercise Physiology, 2(2), 1-10.

Sekendiz, B., Altun, Ö., Korkusuz, F., & Akın, S. (2007). Effects of Pilates exercise on trunk strength, endurance and flexibility in sedentary adult females. Journal of bodywork and movement therapies, 11(4), 318-326.

Shariat, A., Bahri Mohd Tamrin, S., Daneshjoo, A., & Sadeghi, H. (2015). The Adverse Health Effects of Shift Work in Relation to Risk of Illness/Disease: A Review. Acta Medica Bulgarica, 42(1), 63-72.

Stathokostas, L., McDonald, M. W., Little, R., & Paterson, D. H. (2013). Flexibility of older adults aged 55–86 years and the influence of physical activity. Journal of aging research, 2013.

Yamamoto, K., Kawano, H., Gando, Y., Iemitsu, M., Murakami, H., Sanada, K., Tabata, I. (2009). Poor trunk flexibility is associated with arterial stiffening. American Journal of Physiology-Heart and Circulatory Physiology, 297(4), H1314-H1318.


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