Biomechanical analysis of rollator walking

被引:47
作者
Alkjaer, Tine [1 ]
Larsen, Peter K. [1 ]
Pedersen, Gitte [1 ]
Nielsen, Linda H. [1 ]
Simonsen, Erik B. [1 ]
机构
[1] Univ Copenhagen, Panum Inst, Inst Med Anat, DK-2200 Copenhagen N, Denmark
关键词
D O I
10.1186/1475-925X-5-2
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
Background: The rollator is a very popular walking aid. However, knowledge about how a rollator affects the walking patterns is limited. Thus, the purpose of the study was to investigate the biomechanical effects of walking with and without a rollator on the walking pattern in healthy subjects. Methods: The walking pattern during walking with and without rollator was analyzed using a three-dimensional inverse dynamics method. Sagittal joint dynamics and kinematics of the ankle, knee and hip were calculated. In addition, hip joint dynamics and kinematics in the frontal plane were calculated. Seven healthy women participated in the study. Results: The hip was more flexed while the knee and ankle joints were less flexed/dorsiflexed during rollator walking. The ROM of the ankle and knee joints was reduced during rollator-walking. Rollator-walking caused a reduction in the knee extensor moment by 50% when compared to normal walking. The ankle plantarflexor and hip abductor moments were smaller when walking with a rollator. In contrast, the angular impulse of the hip extensors was significantly increased during rollator-walking. Conclusion: Walking with a rollator unloaded the ankle and especially the knee extensors, increased the hip flexion and thus the contribution of hip extensors to produce movement. Thus, rollator walking did not result in an overall unloading of the muscles and joints of the lower extremities. However, the long-term effect of rollator walking is unknown and further investigation in this field is needed.
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页数:7
相关论文
共 24 条
[1]   Cane-assisted gait biomechanics and electromyrography after total hip arthroplasty [J].
Ajemian, S ;
Thon, D ;
Clare, P ;
Kaul, L ;
Zernicke, RF ;
Loitz-Ramage, B .
ARCHIVES OF PHYSICAL MEDICINE AND REHABILITATION, 2004, 85 (12) :1966-1971
[2]  
BLEEKER MW, 2005, J APPL PHYSL
[4]   Gait performance with wheeled and standard walkers [J].
Bohannon, RW .
PERCEPTUAL AND MOTOR SKILLS, 1997, 85 (03) :1185-1186
[5]   Satisfaction with rollators among community-living users:: a follow-up study [J].
Brandt, Å ;
Iwarsson, S ;
Ståhl, A .
DISABILITY AND REHABILITATION, 2003, 25 (07) :343-353
[6]   Changes in knee moments with contralateral versus ipsilateral cane usage in females with knee osteoarthritis [J].
Chan, GNY ;
Smith, AW ;
Kirtley, C ;
Tsang, WWN .
CLINICAL BIOMECHANICS, 2005, 20 (04) :396-404
[7]   Gait biomechanics are not normal after anterior cruciate ligament reconstruction and accelerated rehabilitation [J].
DeVita, P ;
Hortobagyi, T ;
Barrier, J .
MEDICINE AND SCIENCE IN SPORTS AND EXERCISE, 1998, 30 (10) :1481-1488
[8]   Age causes a redistribution of joint torques and powers during gait [J].
DeVita, P ;
Hortobagyi, T .
JOURNAL OF APPLIED PHYSIOLOGY, 2000, 88 (05) :1804-1811
[9]  
Finkel J, 1997, Assist Technol, V9, P116, DOI 10.1080/10400435.1997.10132303
[10]  
Graafmans WC, 2003, Z GERONTOL GERIATR, V36, P23, DOI 10.1007/s00391-003-0143-8