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Aging

Justin Keogh

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Full-Text Articles in Medicine and Health Sciences

Development Of A Clinical Multiple-Lunge Test To Predict Falls In Older Adults, Ruth Wagenaar, Justin W. Keogh, Denise Taylor Aug 2012

Development Of A Clinical Multiple-Lunge Test To Predict Falls In Older Adults, Ruth Wagenaar, Justin W. Keogh, Denise Taylor

Justin Keogh

Objective: To develop a new Multiple-Lunge Test to distinguish between fallers and nonfallers in community-dwelling older adults.Design: A cross-sectional design was used to establish the sensitivity and specificity of the test to predict faller status based on retrospective self-reported fall history. Setting: Local retirement villages.Participants: Community-dwelling older adults (N 130; mean age SD, 77 7y) with (n 40) and without (n 90) a history of falls.Interventions: The Multiple-Lunge Test required individuals to lunge forward to a step length determined as 60% of their leg length, and return to start, for 5 consecutive repetitions. Interday and intraday test-retest reliability of the …


Strength And Coordination Training Are Both Effective In Reducing The Postural Tremor Amplitude Of Older Adults, Justin W.L. Keogh, Steve Morrison, Rod Barrett Dec 2009

Strength And Coordination Training Are Both Effective In Reducing The Postural Tremor Amplitude Of Older Adults, Justin W.L. Keogh, Steve Morrison, Rod Barrett

Justin Keogh

The current study investigated the effect of 2 different types of unilateral resistance training on the postural tremor output of 19 neurologically healthy men age 70–80 yr. The strength- (n = 7) and coordination-training (n = 7) groups trained twice a week for 6 wk, performing dumbbell biceps curls, wrist flexions, and wrist extensions, while the control group (n = 5) maintained their normal activities. Changes in index-finger tremor (RMS amplitude, peak, and proportional power) and upper limb muscle coactivation were assessed during 4 postural conditions that were performed separately with the trained and untrained limbs. The 2 training groups …