Our results demonstrated that the best moderate, negativecorrelation was found between the overall stability index and theBBS scores in both groups. However, better correlation coefficientswere observed in the stroke group. It is anticipated that because theBBS is a functional scale, the subject has to overcome perturbationsin different directions simultaneously to complete the actions. TheOSI also reflects the stability of the subject in all directions. Severalresearchers have assessed positional perturbations in all sides andshowed that there was no significant correlation between thelaboratory static stability tests and the BBS scores that assess thefunctional balance (Liston and Brouwer, 1996; Nichols, 1997;Karlsson and Frykberg, 2000; Lajoie et al., 2002; Tyson andDeSouza, 2002; Lajoie and Gallagher, 2004; Leroux et al., 2006;Cho et al., 2014). The reason for the different findings of the currentstudy may be due to the difference in the type of tested stability,assessment methods, and studied subjects. Conversely, somestudies have reported a high correlation between the findings ofpositional static stability on the force platform and the BBS scores inelderly subjects and subjects with cerebrovascular accidents (CVA)(Berg et al., 1992; Niam et al., 1999; Murphy and Roberts-Warrior,2003). Many investigations also found a significant correlationbetween the dynamic stability measures and the BBS scores (Listonand Brouwer, 1996; Nichols, 1997; Cho et al., 2014; Song et al.,2017). Consistent with our findings, these lines of evidence sup-port that laboratory balance assessment is correlated with the BBSscores. Other studies also investigated subjects with multiplesclerosis (MS), Parkinson's disease, and a history of falling by usingthe BSS. In all studies, there was a significant correlation betweenthe OSI and the BBS score (Elwishy, 2012; Pereira et al., 2013; Pashaet al., 2016). Considering previous studies, it appears that the dy-namic assessment of balance in all directions shows a strongercorrelation with the BBS scores in both healthy subjects and in-dividuals with stroke
Question
Our results demonstrated that the best moderate, negativecorrelation was found between the overall stability index and theBBS scores in both groups. However, better correlation coefficientswere observed in the stroke group. It is anticipated that because theBBS is a functional scale, the subject has to overcome perturbationsin different directions simultaneously to complete the actions. TheOSI also reflects the stability of the subject in all directions. Severalresearchers have assessed positional perturbations in all sides andshowed that there was no significant correlation between thelaboratory static stability tests and the BBS scores that assess thefunctional balance (Liston and Brouwer, 1996; Nichols, 1997;Karlsson and Frykberg, 2000; Lajoie et al., 2002; Tyson andDeSouza, 2002; Lajoie and Gallagher, 2004; Leroux et al., 2006;Cho et al., 2014). The reason for the different findings of the currentstudy may be due to the difference in the type of tested stability,assessment methods, and studied subjects. Conversely, somestudies have reported a high correlation between the findings ofpositional static stability on the force platform and the BBS scores inelderly subjects and subjects with cerebrovascular accidents (CVA)(Berg et al., 1992; Niam et al., 1999; Murphy and Roberts-Warrior,2003). Many investigations also found a significant correlationbetween the dynamic stability measures and the BBS scores (Listonand Brouwer, 1996; Nichols, 1997; Cho et al., 2014; Song et al.,2017). Consistent with our findings, these lines of evidence sup-port that laboratory balance assessment is correlated with the BBSscores. Other studies also investigated subjects with multiplesclerosis (MS), Parkinson's disease, and a history of falling by usingthe BSS. In all studies, there was a significant correlation betweenthe OSI and the BBS score (Elwishy, 2012; Pereira et al., 2013; Pashaet al., 2016). Considering previous studies, it appears that the dy-namic assessment of balance in all directions shows a strongercorrelation with the BBS scores in both healthy subjects and in-dividuals with stroke
Solution
The text you provided is a detailed analysis of a study that found a moderate, negative correlation between the overall stability index (OSI) and the Berg Balance Scale (BBS) scores in two groups, with a stronger correlation observed in the stroke group. The BBS is a functional scale that requires the subject to overcome perturbations in different directions simultaneously to complete actions, and the OSI reflects the subject's stability in all directions.
The text also mentions that previous studies have found no significant correlation between laboratory static stability tests and BBS scores. However, the current study's findings may differ due to differences in the type of stability tested, assessment methods, and subjects studied.
On the other hand, some studies have reported a high correlation between positional static stability on a force platform and BBS scores in elderly subjects and subjects with cerebrovascular accidents (CVA). There is also significant correlation found between dynamic stability measures and BBS scores.
The text also mentions studies involving subjects with multiple sclerosis (MS), Parkinson's disease, and a history of falling using the BSS. In all these studies, a significant correlation was found between the OSI and the BBS score.
In conclusion, the dynamic assessment of balance in all directions shows a stronger correlation with the BBS scores in both healthy subjects and individuals with stroke.
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