Step-Rate Thresholds for Physical Activity Intensity in Persons With Multiple Sclerosis

被引:17
作者
Agiovlasitis, Stamatis [1 ]
Motl, Robert W. [2 ]
机构
[1] Mississippi State Univ, Dept Kinesiol, Mississippi State, MS 39762 USA
[2] Univ Illinois, Dept Kinesiol & Community Hlth, Urbana, IL USA
关键词
Physical Activity Assessment; Step-rate; Multiple Sclerosis; ENERGY-COST; WALKING; EXERCISE; RECOMMENDATIONS; METAANALYSIS; GAIT; INDIVIDUALS; DISABILITY; SYMPTOMS;
D O I
10.1123/apaq.2013-0008
中图分类号
R49 [康复医学];
学科分类号
100232 [康复医学];
摘要
This study examined whether the relationship between metabolic equivalent units (METs) and step-rate is altered in persons with multiple sclerosis (MS) and developed step-rate thresholds for activity intensity for these persons. Participants were 24 persons with MS (20 women; age = 44 +/- 12) and 24 healthy persons without MS (20 women; age = 41 +/- 11). The MS group was divided using the 12-item MS Walking Scale (MSWS-12) into two walking impairment subgroups: (a) minimal (n = 13, MSWS-12 <= 12.5) and (b) mild-moderate (n = 11, MSWS-12 > 12.5). METs were measured with spirometry and step-rate with hand-tally. Step-rate, height, group, the step-rate by group interaction, and the square of step-rate significantly predicted METs. At a given height, the step-rate thresholds at 3 and 6 METs were lower for persons with minimal impairment than persons without MS and even lower for persons with mild-moderate impairment. The relationship between METs and step-rate is altered in persons with MS, lowering their step-rate thresholds for activity intensity, especially for persons with MS who have higher levels of walking impairment.
引用
收藏
页码:4 / 18
页数:15
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