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CURRENT ISSUEEUROPEAN JOURNAL OF PHYSICAL AND REHABILITATION MEDICINE

A Journal on Physical Medicine and Rehabilitation after Pathological Events

Official Journal of the Italian Society of Physical and Rehabilitation Medicine (SIMFER), European Society of Physical and Rehabilitation Medicine (ESPRM), European Union of Medical Specialists - Physical and Rehabilitation Medicine Section (UEMS-PRM), Mediterranean Forum of Physical and Rehabilitation Medicine (MFPRM), Hellenic Society of Physical and Rehabilitation Medicine (EEFIAP)
In association with International Society of Physical and Rehabilitation Medicine (ISPRM)
Indexed/Abstracted in: CINAHL, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 2,063

Frequency: Bi-Monthly

ISSN 1973-9087

Online ISSN 1973-9095

 

European Journal of Physical and Rehabilitation Medicine 2016 April;52(2):186-94

    ORIGINAL ARTICLES

Electromyographical characteristics and muscle utilization in hemiplegic patients during sit-to-stand activity: an observational study

Rong R. LU 1, Fang LI 1, 2, Bing ZHU 1

1 Department of Rehabilitation, Huashan Hospital, Fudan University, Shanghai, China; 2 Department of Rehabilitation, Renhe Hospital Baoshan, Shanghai, China

BACKGROUND: Sit-to-stand is an important process in daily activity, and stroke patients have difficulty completing this task due to many reasons.
AIM: To investigate the characteristic of muscle utilization of lower limb muscles between healthy participants and hemiplegic patients during sit-to-stand activity.
DESIGN: This is an observational study.
SETTING: Inpatients at a rehabilitation hospital.
POPULATION: Thirty-two stroke patients and 36 healthy participants.
METHODS: The participants were evaluated on sit-to-stand movement. Muscle strength was assessed by measuring maximal voluntary contraction (MVC) bilaterally in quadriceps, hamstrings, tibialis anterior and gastrocnemius. Amplitude (average and maximal) and area under the curve (AUC) of quadriceps, hamstring, tibialis anterior, and gastrocnemius of both sides were recorded during this activity.
RESULTS: The average and maximal amplitudes of paretic muscles were significantly less than non-paretic muscles and healthy controls (P<0.05). AUC of paretic muscles was significantly less than non-paretic muscles (P<0.05) but not statistically different from healthy controls. The area under the curve of non-paretic muscles was significantly greater than healthy controls (P<0.05), except for tibialis anterior (P=0.07). The area under the curve/maximal voluntary contraction ratios of quadriceps and hamstrings in both sides of patients were significantly larger than healthy controls (P<0.05), except for paretic quadriceps (P=0.078). The muscle utilization ratio (MUR) of the patients was significantly higher than that of the healthy participants.
CONCLUSIONS: This study demonstrated electromyographical features of sit-to-stand activity in hemiplegic patients. During sit-to-stand, stroke patients’ muscle utilization of both sides increased and MUR of the paretic side is similar to the non-paretic side.
CLINICAL REHABILITATION IMPACT: Muscle utilization ratio might help to understand how patients fulfill the sit-to-stand task. Using this information might improve our training strategy. Through customized training, paretic patients could fulfill the task with less muscle utilization.

language: English


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