OBJECTIVE: Overweight individuals sway more than normal weight individuals. Major weight loss improves their balance control despite a related decrease in muscle strength. Presumably, muscular strength is an important factor for balance control. This study investigated the effect that a change in body mass has on relative strength and balance control. METHODOLOGY: Force (isometric knee extension) and balance control (center of pressure speed and range) were studied in three groups; normal weight (BMI <25 kg m(-2)), obese (30 kg m(-2) <BMI< 40 kg m(-2)) and excess obese (BMI >40 kg m(-2)) Caucasian male individuals. RESULTS: The excess obese individuals who underwent bariatric surgery as a weight loss strategy were studied before, 3 and 12 months after losing on average, 66.9 kg (+/-95% CI 55.8, 77.9 kg; on average, 45% of their weight). The obese individuals who underwent diet modifications were studied before dieting and when resistance to weight loss occurred after losing on average 11.7 kg (+/-95% CI 9.3, 14.2 kg; on average, 12% of their weight). The control group was studied twice, 50 weeks apart. In obese and excess obese individuals, losing weight reduced absolute knee muscular strength on average, by 8.2 kg (+/-95% CI 3.9, 12.5 kg; on average, 10% of their strength) and 23.9 kg (+/-95% CI 12.1, 35.8 kg; on average, 33% of their strength). However, it also increased balance control measured with speed of the center of foot pressure, on average, by 0.10 cm s(-1) (+/-95% CI 0.05, 0.14 cm s(-1); or increased of 12%) and 0.28 cm s(-1) (+/-95% CI 0.07, 0.47 cm s(-1); increased of 27%), respectively. Relative strength increased approximately by 22% for only the excess obese group 12 months post surgery. CONCLUSION: This suggests, in overweight individuals, weight loss is more efficient at improving balance control than increasing, or even maintaining muscle strength. In these individuals, training programs aimed at improving balance control should primarily target weight loss.
OBJECTIVE: Overweight individuals sway more than normal weight individuals. Major weight loss improves their balance control despite a related decrease in muscle strength. Presumably, muscular strength is an important factor for balance control. This study investigated the effect that a change in body mass has on relative strength and balance control. METHODOLOGY: Force (isometric knee extension) and balance control (center of pressure speed and range) were studied in three groups; normal weight (BMI <25 kg m(-2)), obese (30 kg m(-2) <BMI< 40 kg m(-2)) and excess obese (BMI >40 kg m(-2)) Caucasian male individuals. RESULTS: The excess obese individuals who underwent bariatric surgery as a weight loss strategy were studied before, 3 and 12 months after losing on average, 66.9 kg (+/-95% CI 55.8, 77.9 kg; on average, 45% of their weight). The obese individuals who underwent diet modifications were studied before dieting and when resistance to weight loss occurred after losing on average 11.7 kg (+/-95% CI 9.3, 14.2 kg; on average, 12% of their weight). The control group was studied twice, 50 weeks apart. In obese and excess obese individuals, losing weight reduced absolute knee muscular strength on average, by 8.2 kg (+/-95% CI 3.9, 12.5 kg; on average, 10% of their strength) and 23.9 kg (+/-95% CI 12.1, 35.8 kg; on average, 33% of their strength). However, it also increased balance control measured with speed of the center of foot pressure, on average, by 0.10 cm s(-1) (+/-95% CI 0.05, 0.14 cm s(-1); or increased of 12%) and 0.28 cm s(-1) (+/-95% CI 0.07, 0.47 cm s(-1); increased of 27%), respectively. Relative strength increased approximately by 22% for only the excess obese group 12 months post surgery. CONCLUSION: This suggests, in overweight individuals, weight loss is more efficient at improving balance control than increasing, or even maintaining muscle strength. In these individuals, training programs aimed at improving balance control should primarily target weight loss.
Authors: Diana L Alba; Lucy Wu; Peggy M Cawthon; Kathleen Mulligan; Thomas Lang; Sheena Patel; Nicole J King; Jonathan T Carter; Stanley J Rogers; Andrew M Posselt; Lygia Stewart; Dolores M Shoback; Anne L Schafer Journal: J Clin Endocrinol Metab Date: 2019-03-01 Impact factor: 5.958
Authors: Daniel Neunhaeuserer; Andrea Gasperetti; Francesco Savalla; Stefano Gobbo; Valentina Bullo; Marco Bergamin; Mirto Foletto; Roberto Vettor; Marco Zaccaria; Andrea Ermolao Journal: Obes Surg Date: 2017-12 Impact factor: 4.129
Authors: R Pedrero-Chamizo; A Gómez-Cabello; A Meléndez; S Vila-Maldonado; L Espino; N Gusi; G Villa; J A Casajús; M González-Gross; I Ara Journal: J Nutr Health Aging Date: 2015-02 Impact factor: 4.075
Authors: Gabriel M Pagnotti; Amna Haider; Ariel Yang; Kathryn E Cottell; Catherine M Tuppo; Kai-Yu Tong; Aurora D Pryor; Clinton T Rubin; M Ete Chan Journal: Obes Facts Date: 2020-10-20 Impact factor: 3.942
Authors: Angela Fowler-Brown; Christina C Wee; Edward Marcantonio; Long Ngo; Suzanne Leveille Journal: J Am Geriatr Soc Date: 2013-11-01 Impact factor: 5.562