Contributions
Abstract: EP1810
Type: ePoster
Abstract Category: Therapy - disease modifying - 32 Others
Background: Motor impairment in people with Multiple Sclerosis (MS) may result in reduced mobility and physical activity level, which can culminate in further disabilities. Changes in balance control, loss of muscle strength and gait disorders are frequent in MS patients. The measurement of these parameters are important in turn to change the way to manage exercise programs for people with MS.
Objectives: The purpose of this study is to compare knee muscles strength between women with MS and controls without MS. In addition, to investigate the correlation between muscle strength, balance and gait parameters in our sample.
Methods: 15 women with relapsing-remitting MS, EDSS (1-3), age=29.2(±4) y, weight=59.5(±10) kg and height=161.4(±5) cm. The control group was composed of 11 paired women without MS, age=29.1(±5.7) y, weight=60(±10.5) kg and height=161.5(±5.1) cm. The peak torque was measured by isokinetic dynamometry (Biodex System 3) in four trials for each angular speed (60º.s-1, 90º.s-1 and 180º.s-1), for both legs. The balance control was evaluated with a force platform (AMTI Inc) on upright position using a foam. The 6 minute walk test was performed and total distance was calculated.
Results: Regarding knee muscles strength, MS women did not differ from control group. The correlation between muscle strength and balance was not significant. The control group showed strong correlation (p< 0.05) between distance and knee extensors (KE) strength, for all angular speeds: 60º.s-1(r=0.87), 90º.s-1(r=0.84), 180º.s-1(r=0.82). For the MS group, not only KE strength revealed correlation with distance, 60º.s-1(r=0.84), 90º.s-1(r=0.87), 180º.s-1(r=0.84), but also the knee flexors (KF) muscles, 60º.s-1(r=0.86), 90º.s-1(r=0.80), 180º.s-1(r=0.80).
Discussion and conclusions: The literature report that KE strength is best related to walking speed in healthy subjects. However, MS patients KF strength is most strongly related to gait velocity and distance. The results of this study agree with the recent findings, suggesting that people with MS seems to be more dependent on KF muscle to walk. Our results suggest that rehabilitation protocols for MS patients must include strength training programs which should prioritize strengthening of the KF and KE muscles.
Disclosure:
Cintia Ramari: nothing to disclose.
Andrea G. Moraes: nothing to disclose.
Carlos B. Tauil: nothing to disclose.
Ana C. de David: nothing to disclose.
Abstract: EP1810
Type: ePoster
Abstract Category: Therapy - disease modifying - 32 Others
Background: Motor impairment in people with Multiple Sclerosis (MS) may result in reduced mobility and physical activity level, which can culminate in further disabilities. Changes in balance control, loss of muscle strength and gait disorders are frequent in MS patients. The measurement of these parameters are important in turn to change the way to manage exercise programs for people with MS.
Objectives: The purpose of this study is to compare knee muscles strength between women with MS and controls without MS. In addition, to investigate the correlation between muscle strength, balance and gait parameters in our sample.
Methods: 15 women with relapsing-remitting MS, EDSS (1-3), age=29.2(±4) y, weight=59.5(±10) kg and height=161.4(±5) cm. The control group was composed of 11 paired women without MS, age=29.1(±5.7) y, weight=60(±10.5) kg and height=161.5(±5.1) cm. The peak torque was measured by isokinetic dynamometry (Biodex System 3) in four trials for each angular speed (60º.s-1, 90º.s-1 and 180º.s-1), for both legs. The balance control was evaluated with a force platform (AMTI Inc) on upright position using a foam. The 6 minute walk test was performed and total distance was calculated.
Results: Regarding knee muscles strength, MS women did not differ from control group. The correlation between muscle strength and balance was not significant. The control group showed strong correlation (p< 0.05) between distance and knee extensors (KE) strength, for all angular speeds: 60º.s-1(r=0.87), 90º.s-1(r=0.84), 180º.s-1(r=0.82). For the MS group, not only KE strength revealed correlation with distance, 60º.s-1(r=0.84), 90º.s-1(r=0.87), 180º.s-1(r=0.84), but also the knee flexors (KF) muscles, 60º.s-1(r=0.86), 90º.s-1(r=0.80), 180º.s-1(r=0.80).
Discussion and conclusions: The literature report that KE strength is best related to walking speed in healthy subjects. However, MS patients KF strength is most strongly related to gait velocity and distance. The results of this study agree with the recent findings, suggesting that people with MS seems to be more dependent on KF muscle to walk. Our results suggest that rehabilitation protocols for MS patients must include strength training programs which should prioritize strengthening of the KF and KE muscles.
Disclosure:
Cintia Ramari: nothing to disclose.
Andrea G. Moraes: nothing to disclose.
Carlos B. Tauil: nothing to disclose.
Ana C. de David: nothing to disclose.