Portable electromyography: Application for understanding muscle function of daily life in older adults

Autor: Jennifer M. Jakobi, Olga Theou, Sara H. Bruce, Gareth R. Jones, Kaitlyn P. Roland
Rok vydání: 2011
Předmět:
Zdroj: Gerontechnology. 10
ISSN: 1569-111X
1569-1101
Popis: Purpose To measure arm and thigh muscle activity using electromyography (EMG) for an 8-hour typical day in community-dwelling and retirement-home residents (older women only). Methods Twenty-two women (>75 yrs), living either in the community (n=11, 82±6 yrs) or in a retirement facility (n=11, 86±6 yrs) participated. Long term EMG was recorded from the biceps brachii, triceps brachii, vastus lateralis, and biceps femoris using portable surface EMG over a typical 8-hour day. Results of the two groups were compared at a confidence limit of 0.05. Results Portable EMG was successfully used to compare muscle activity for a typical day in retirement home residents relative to community-dwelling individuals. Retirement home residents had ~22% greater number of bursts compared to community-dwellers. Conversely, retirement home residents had ~42% lower peak amplitude than community-dwellers. In addition, number of bursts was ~34% greater in the arm muscles than the thigh muscles for both community-dwelling older adults and retirement home residents. Retirement home residents were engaged ~65% less time in instrumental activities of daily living than community-dwellers (p
Databáze: OpenAIRE