Can Isometric Knee Extensor Torque from Hand-held Dynamometry Predict Physical Function in Overweight Older Adults?

2010 ◽  
Vol 42 ◽  
pp. 600
Author(s):  
Chad R. Straight ◽  
Leah R. Dorfman ◽  
Kathryn E. Cottell ◽  
Kristen L. Cavaco ◽  
Thomas G. Manfredi ◽  
...  
Keyword(s):  
Older Adults ◽  
Physical Function ◽  
Knee Extensor ◽  
Extensor Torque

scholarly journals Reduced rate of knee extensor torque development in older adults with knee osteoarthritis is associated with intrinsic muscle contractile deficits

2015 ◽  
Vol 72 ◽  
pp. 16-21 ◽  
Author(s):  
Damien M. Callahan ◽  
Timothy W. Tourville ◽  
James R. Slauterbeck ◽  
Philip A. Ades ◽  
Jennifer Stevens-Lapsley ◽  
...  
Keyword(s):  
Older Adults ◽  
Knee Osteoarthritis ◽  
Knee Extensor ◽  
Intrinsic Muscle ◽  
Reduced Rate ◽  
Extensor Torque ◽  
Muscle Contractile ◽  
Torque Development

scholarly journals Olfaction and Physical Function in Older Adults: Findings From Health ABC

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 530-531
Author(s):  
Yaqun Yuan ◽  
Zhehui Luo ◽  
Chenxi Li ◽  
Eleanor Simonsick ◽  
Eric Shiroma ◽  
...  
Keyword(s):  
Older Adults ◽  
Physical Function ◽  
Physical Performance ◽  
Physical Functioning ◽  
Knee Extensor ◽  
Community Dwelling ◽  
Potential Health ◽  
Knee Extensor Strength ◽  
Race Disparities

Abstract The present study aims to investigate poor olfaction in relation to physical functioning in community-dwelling older adults and potential sex and race disparities. The analysis included 2511 participants aged 71-82 years (51.7% women and 38.4% blacks) from the Health Aging, and Body Composition (Health ABC) study. Olfaction was tested with the 12-item Brief Smell Identification Test (BSIT). Physical function measures included the Short Physical Performance Battery (SPPB), the Health ABC Physical Performance Battery (HABCPPB), gait speed of 20-meter walk, fast 400-meter walking time, grip strength, and knee extensor strength, repeatedly assessed annually or biennially for a follow-up of seven years. We analyzed each of these physical function measures using mixed models, adjusting for demographics, lifestyle, and comorbidities. For all measures except grip and knee extensor strength, poor olfaction was clearly associated with poorer physical performance at baseline and a faster decline over time. For example, at baseline, the multivariate adjusted SPPB was 8.23 ± 0.09 for participants with poor olfaction and 8.55 ± 0.09 for those with good olfaction (P = 0.02), after seven years of follow-up, the corresponding scores decreased to 6.46 ± 0.12 and 7.36 ± 0.10 respectively (cross-sectional P<0.001, and P for olfaction-by-year interaction < 0.001). For grip and knee extensor strength, similar differences were suggested but didn’t reach statistical significance. The overall results were similar by sex and race. In summary, poor olfaction is clearly associated with faster decline in physical functioning in older adults and future studies should investigate its potential health implications.

scholarly journals Impact of Weight Loss on Physical Function with Changes in Strength, Muscle Mass, and Muscle Fat Infiltration in Overweight to Moderately Obese Older Adults: A Randomized Clinical Trial

2011 ◽  
Vol 2011 ◽  
pp. 1-10 ◽  
Author(s):  
Adam J. Santanasto ◽  
Nancy W. Glynn ◽  
Mark A. Newman ◽  
Christopher A. Taylor ◽  
Maria Mori Brooks ◽  
...  
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Weight Loss ◽  
Physical Function ◽  
Muscle Mass ◽  
Successful Aging ◽  
Knee Extensor ◽  
Muscle Area ◽  
Fat Infiltration ◽  
Muscle Fat Infiltration

Purpose. Evaluate the effects of weight loss on muscle mass and area, muscle fat infiltration, strength, and their association with physical function.Methods. Thirty-six overweight to moderately obese, sedentary older adults were randomized into either a physical activity plus weight loss (PA+WL) or physical activity plus successful aging health education (PA+SA) program. Measurements included body composition by dual-energy X-ray absorptiometry, computerized tomography, knee extensor strength, and short physical performance battery (SPPB).Results. At 6 months, PA+WL lost greater thigh fat and muscle area compared to PA+SA. PA+WL lost 12.4% strength; PA+SA lost 1.0%. Muscle fat infiltration decreased significantly in PA+WL and PA+SA. Thigh fat area decreased 6-fold in comparison to lean area in PA+WL. Change in total SPPB score was strongly inversely correlated with change in fat but not with change in lean or strength.Conclusion. Weight loss resulted in additional improvements in function over exercise alone, primarily due to loss of body fat.

scholarly journals Relationship between knee extensor torque and physical function in men with early knee osteoarthritis

2014 ◽  
Vol 22 ◽  
pp. S436
Author(s):  
L.F. Selistre ◽  
G.H. Gonçalves ◽  
M. Petrella ◽  
S.M. Mattiello
Keyword(s):  
Knee Osteoarthritis ◽  
Physical Function ◽  
Knee Extensor ◽  
Extensor Torque

scholarly journals Physical Activity Predicts Higher Physical Function in Older Adults: The Osteoarthritis Initiative

2016 ◽  
Vol 13 (1) ◽  
pp. 6-16 ◽  
Author(s):  
John A. Batsis ◽  
Cassandra M. Germain ◽  
Elizabeth Vásquez ◽  
Alicia J. Zbehlik ◽  
Stephen J. Bartels
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
At Risk ◽  
Physical Function ◽  
Gait Speed ◽  
Short Form ◽  
Knee Extensor ◽  
The Elderly ◽  
Age Group ◽  
Osteoarthritis Initiative

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.

scholarly journals Long-term participation in community group exercise improves lower extremity muscle strength and delays age-related declines in walking speed and physical function in older adults

2021 ◽  
Vol 18 (1) ◽  
Author(s):  
Chisato Hayashi ◽  
Soshiro Ogata ◽  
Tadashi Okano ◽  
Hiromitsu Toyoda ◽  
Sonoe Mashino
Keyword(s):  
Older Adults ◽  
Muscle Strength ◽  
Physical Exercise ◽  
Lower Extremity ◽  
Physical Function ◽  
Community Dwelling ◽  
Group Exercise ◽  
Community Based ◽  
Lower Extremity Muscle

Abstract Background The effects of group exercise on the physical function of community-dwelling older adults remain unclear. The changes in lower extremity muscle strength, timed up and go (TUG) time, and the motor fitness scale (MFS), over time, among older adults who expressed a willingness to participate in community-based physical exercise groups, were determined using multilevel modelling. Methods We analyzed data of 2407 older adults between April 2010 and December 2019 from the registry of physical tests of community-based physical exercise groups. We conducted a retrospective cohort study to assess the effect of physical exercise on lower extremity muscle strength, TUG time, and MFS scores. The durations of the exercises were evaluated by frequency of physical test’s participate. Results A deterioration in lower extremity muscle strength was found in the short-term participant group only. However, in the mid-term and long-term participation groups, lower extremity muscle strength showed a trend of improvement. The TUG time and the MFS score were negatively correlated with increasing age in both groups divided by the duration of participation. However, there was a slower rate of deterioration in the long-term participation group. Discussion Lower extremity muscle strength, TUG time, and MFS scores decline with increasing age and there were differences in the slope of deterioration that depended on the duration of participation in community-based group exercise. Conclusion Participation in group exercise improved lower extremity muscle strength, TUG time, and MFS scores of older adults living in a community. The positive effects of group exercise were dependent on long-term participation.

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