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Dennis Wayne Klima, Catherine Anderson, Dina Samrah, Dipal Patel, Kevin Chui and Roberta Newton

While considerable research has targeted physical performance in older adults, less is known about the ability to rise from the floor among community-dwelling elders. The purposes of the study were to (1) examine physical performance correlates of timed supine to stand performance and (2) identify the predominant motor pattern used to complete floor rise. Fifty-three community-dwelling adults over the age of 60 (x = 78.5 ± 8.5; 36 [68%] females) performed a timed supine to stand test and physical performance assessments. Forty-eight subjects (90.6%) demonstrated an initial roll with asymmetrical squat sequence when rising to stand. Supine to stand performance time was significantly correlated with all physical performance tests, including gait speed (r = −.61; p < .001), grip strength (r = −.30; p < .05), and Timed Up and Go (TUG) performance (r = .71; p < .001). Forty-eight percent of the variance in rise time (p < .001) was attributed to TUG velocity. Findings serve to enhance both functional performance assessment and floor rise interventions.

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George J. Salem, Sean P. Flanagan, Man-Ying Wang, Joo-Eun Song, Stanley P. Azen and Gail A. Greendale

Stepping activities when wearing a weighted vest may enhance physical function in older persons. Using 3 weighted-vest resistance dosages, this study characterized the lower-extremity joint biomechanics associated with stepping activities in elders. Twenty healthy community-dwelling older adults, ages 74.5 ± 4.5 yrs, performed 3 trials of forward step-up and lateral step-up exercises while wearing a weighted vest which added 0% body weight (BW), 5% BW, or 10% BW. They performed these activities on a force platform while instrumented for biomechanical analysis. Repeated-measures ANOVA was used to evaluate the differences in ankle, knee, and hip maximum joint angles, peak net joint moments, joint powers, and impulses among both steping activities and the 3 loading conditions. Findings indicated that the 5% BW vest increased the kinetic output associated with the exercise activities at all three lower-extremity joints. These increases ranged from 5.9% for peak hip power to 12.5% for knee extensor impulse. The application of an additional 5% BW resistance did not affect peak joint moments or powers, but it did increase the joint impulses by 4–11%. Comparisons between exercise activities, across the 3 loading conditions, indicated that forward stepping preferentially targeted the hip extensors while lateral stepping targeted the plantar flexors; both activities equally targeted the knee extensors. Weighted-vest loads of 5% and 10% BW substantially increased the mechanical demand on the knee extensors, hip extensors (forward stepping), and ankle plantar flexors (lateral stepping).

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John A. Batsis, Cassandra M. Germain, Elizabeth Vásquez, Alicia J. Zbehlik and Stephen J. Bartels

Objectives:

Physical activity reduces mobility impairments in elders. We examined the association of physical activity on risk of subjective and objective physical function in adults with and at risk for osteoarthritis (OA).

Methods:

Adults aged ≥ 60 years from the longitudinal Osteoarthritis Initiative, a prospective observational study of knee OA, were classified by sex-specific quartiles of Physical Activity Score for the Elderly scores. Using linear mixed models, we assessed 6-year data on self-reported health, gait speed, Late-Life Function and Disability Index (LLFDI) and chair stand.

Results:

Of 2252 subjects, mean age ranged from 66 to 70 years. Within each quartile, physical component (PCS) of the Short Form-12 and gait speed decreased from baseline to follow-up in both sexes (all P < .001), yet the overall changes across PASE quartiles between these 2 time points were no different (P = .40 and .69, males and females, respectively). Decline in PCS occurred in the younger age group, but rates of change between quartiles over time were no different in any outcomes in either sex. LLFDI scores declined in the 70+ age group. Adjusting for knee extensor strength reduced the strength of association.

Conclusions:

Higher physical activity is associated with maintained physical function and is mediated by muscle strength, highlighting the importance of encouraging physical activity in older adults with and at risk for OA.

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Kim Gammage, Desi McEwan, Lori Dithurbide, Alison Ede, Karl Erickson, Blair Evans, Larkin Lamarche, Sean Locke, Eric Martin and Kathleen Wilson

communities. This project was a continuation of a relationship that was developed between the research team and the communities who, together, hired local elder care coordinators to serve as critical stakeholders for the project. The elder care coordinators helped form an elder advisory committee, which

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Jen D. Wong, Julie S. Son, Stephanie T. West, Jill J. Naar and Toni Liechty

, lack of participation opportunities) that older women face when participating in sports ( Dionigi & O’Flynn, 2007 ; Vertinsky, 1995 ). Informed by the key principles of the life course perspective ( Elder, Johnson, & Crosnoe, 2003 ), this qualitative study aims to describe the experience of women

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Lene Levy-Storms, Lin Chen and Anastasia Loukaitou-Sideris

one intervention study. Table 1 Summary of Studies Included in the Review First author and year of publication Country Study design Participants Elders’ specific needs and preferences of parks/open spaces Askari et al. ( 2015 ) Malaysia Survey N  = 400, 13–80 years old Safety and security A variety of

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Allyson C. Hartzell and Marlene A. Dixon

those within the self and his or her family. In addition, it considers the fact that individuals make choices regarding their careers that are based upon the data they have from these multiple levels. Life Course Perspective The life course perspective ( Elder, 1994 ) provides another excellent

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Rebecca E. Hasson

recess supervisors to promote physical activity. This is concerning, as previous research has demonstrated that untrained recess supervisors may actually reduce physical activity opportunities during recess ( McKenzie, Crespo, Baquero, & Elder, 2010 ). Schools serving predominantly Latino students in

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Adam J. Nichol, Edward T. Hall, Will Vickery and Philip R. Hayes

, introduced in greater detail below) which are capable of providing a novel contribution to understanding the influence of practitioners ( Elder-Vass, 2010 ). While it is impractical to attempt to present a single, unifying explanation of critical realism (CR) here, due to the complex assemblage of ideas and

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Pedro Lopez, Mikel Izquierdo, Regis Radaelli, Graciele Sbruzzi, Rafael Grazioli, Ronei Silveira Pinto and Eduardo Lusa Cadore

were examined to detect studies potentially eligible for inclusion, and the complete search strategy used in PubMed is summarized in Table  1 . Table 1 Search Strategy #1 Frail Older [MeSh]: Elderly, Frail OR Frail Elders OR Elder, Frail OR Elders, Frail OR Frail Elder OR Functionally-Impaired Elderly