Age-Related Changes in Physical Fitness Among Community-Living Middle-Aged and Older Japanese: A 12-Year Longitudinal Study

2020 ◽  
Vol 91 (4) ◽  
pp. 662-675
Author(s):  
Rumi Kozakai ◽  
Yukiko Nishita ◽  
Rei Otsuka ◽  
Fujiko Ando ◽  
Hiroshi Shimokata
Keyword(s):  
Longitudinal Study ◽  
Physical Fitness ◽  
Community Living ◽  
Middle Aged ◽  
Age Related ◽  
Age Related Changes

scholarly journals Sex-differences in age-related grip strength decline: A 10-year longitudinal study of community-living middle-aged and older Japanese

2016 ◽  
Vol 5 (1) ◽  
pp. 87-94 ◽  
Author(s):  
Rumi Kozakai ◽  
Fujiko Ando ◽  
Heung Youl Kim ◽  
Atsumu Yuki ◽  
Rei Otsuka ◽  
...  
Keyword(s):  
Sex Differences ◽  
Longitudinal Study ◽  
Grip Strength ◽  
Community Living ◽  
Middle Aged ◽  
Age Related

Perceptions of Sex Roles of Young and Middle-Aged Women and Men

1982 ◽  
Vol 55 (2) ◽  
pp. 559-562
Author(s):  
Claire Etaugh ◽  
Sharon Weber
Keyword(s):  
College Students ◽  
Sex Roles ◽  
Sex Role ◽  
Middle Aged ◽  
Age Related ◽  
Aged Woman ◽  
Male College ◽  
Middle Aged Woman ◽  
Age Related Changes ◽  
Female Subjects

48 female and 48 male college students used the Bern Sex-role Inventory to describe either a young or middle-aged woman or man. Female subjects perceived that women become increasingly feminine and less androgynous with age. No age-related changes were perceived in men's sex-role behaviors.

Age-related changes in immune parameters in a very old population of Swedish people: A longitudinal study

1994 ◽  
Vol 29 (5) ◽  
pp. 531-541 ◽  
Author(s):  
Anders Wikby ◽  
Boo Johansson ◽  
Frederick Ferguson ◽  
Jadwiga Olsson
Keyword(s):  
Longitudinal Study ◽  
Very Old ◽  
Immune Parameters ◽  
Age Related ◽  
Age Related Changes

A model to assess age-related changes in two-point discrimination of plantar skin

1999 ◽  
Vol 89 (8) ◽  
pp. 383-391 ◽  
Author(s):  
W Lynch ◽  
J Mooney
Keyword(s):  
Older Adults ◽  
Statistical Analysis ◽  
Linear Relationship ◽  
Middle Aged ◽  
Discrimination Accuracy ◽  
Discrimination Ability ◽  
Fixed Distance ◽  
Age Related ◽  
Older Subjects ◽  
Age Related Changes

A device was constructed to assess two-point discrimination in the plantar skin of younger, middle-aged, and older adults. The device consisted of paired filaments, each delivering a tip force of 4.56 log units (equivalent to 3.63 g), at a fixed distance apart. Statistical analysis showed significant differences in two-point discrimination accuracy between these groups of subjects. Younger subjects showed greater accuracy of plantar two-point discrimination than either middle-aged or older subjects, with an apparent inverse linear relationship between subject age and plantar two-point discrimination ability. A model to assess age-related changes in two-point discrimination is presented.

Effect of aging on tracheal mucociliary clearance in beagle dogs

1987 ◽  
Vol 62 (3) ◽  
pp. 1331-1334 ◽  
Author(s):  
S. L. Whaley ◽  
B. A. Muggenburg ◽  
F. A. Seiler ◽  
R. K. Wolff
Keyword(s):  
Young Adult ◽  
Gamma Camera ◽  
Mucociliary Clearance ◽  
Age Groups ◽  
Beagle Dogs ◽  
Velocity Measurements ◽  
Middle Aged ◽  
Age Related ◽  
Age Related Changes ◽  
Made In

Tracheal mucous velocity measurements were made in 24 beagle dogs in five age groups, using a gamma camera to detect movement of instilled 99mTc-macroaggregated albumin. Age groups were defined as immature (9–10 mo), young adult (2.8–3.0 yr), middle aged (6.7–6.9 yr), mature (9.6–9.8 yr), and aged dogs (13.6–16.2 yr). Mean velocities were 3.6 +/- 0.4 (SE) mm/min in the immature dogs, 9.7 +/- 0.6 mm/min in the young adults, 6.9 +/- 0.5 mm/min in the middle-aged dogs, 3.5 +/- 0.8 mm/min in the mature dogs, and 2.9 +/- 0.5 mm/min in the aged dogs. Tracheal mucous velocity was significantly (P less than 0.05) greater in the young adult and middle-aged groups compared with the immature, mature, and aged dogs. This pattern of age-related changes was noted to be similar to age-related changes described for certain pulmonary function measurements.

scholarly journals Association of physical activity with age-related changes in muscle echo intensity in older adults: a 4-year longitudinal study

2018 ◽  
Vol 125 (5) ◽  
pp. 1468-1474 ◽  
Author(s):  
Yoshihiro Fukumoto ◽  
Yosuke Yamada ◽  
Tome Ikezoe ◽  
Yuya Watanabe ◽  
Masashi Taniguchi ◽  
...  
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Longitudinal Study ◽  
Muscle Thickness ◽  
Quadriceps Femoris ◽  
Community Dwelling ◽  
Echo Intensity ◽  
Longitudinal Changes ◽  
Age Related ◽  
Age Related Changes

Ultrasonic echo intensity (EI), an easy-to-use measure of intramuscular fat and fibrous tissues, is known to increase with aging. However, age-related changes in EI have not been examined in a longitudinal design. The objective of this study was to investigate 4-yr longitudinal changes in the EI of the quadriceps femoris in older adults, based on difference in physical activity (PA). This study included 131 community-dwelling older adults with a mean age of 72.9 ± 5.2 yr. Subcutaneous fat thickness (FT), muscle thickness (MT), and EI of the quadriceps femoris were measured by ultrasound. Isometric knee extensor strength was also measured. PA was assessed using a questionnaire at baseline, and participants were classified into the high or low PA groups. In 4 yr, a significant decrease in FT, MT, and strength was observed in both groups ( P < 0.05), whereas a significant decrease in EI was observed only in the high PA group ( P < 0.05). Multiple linear regression analyses revealed that the difference in PA was a significant predictor of 4-yr changes in MT (β = 0.189, P = 0.031) and EI (β = −3.145, P = 0.045) but not in the body mass index, FT, or strength adjusted for potential confounders. The present findings suggest that greater PA has a positive effect on longitudinal changes in the MT and EI of the quadriceps femoris in older adults. In addition, greater PA may contribute to a future decrease in EI, and an increase in EI may not occur in 4 yr, even in older adults with lesser PA. NEW & NOTEWORTHY Our results suggest that greater physical activity (PA) may mitigate future changes in muscle thickness and echo intensity (EI). A decrease in EI over 4 yr was observed in older adults with greater PA, and an increase in EI was not observed, even in older adults with smaller PA. Several cross-sectional studies demonstrated an increase in EI with aging. Additionally, the results of our longitudinal study suggest that an age-related increase in EI may be moderated after the old-age period.

scholarly journals Microarray analysis of aging-associated immune system alterations in the rostral ventrolateral medulla of F344 rats

2017 ◽  
Vol 49 (8) ◽  
pp. 400-415 ◽  
Author(s):  
Sivasai Balivada ◽  
Chanran K. Ganta ◽  
Yongqing Zhang ◽  
Hitesh N. Pawar ◽  
Richard J. Ortiz ◽  
...  
Keyword(s):  
Gene Expression ◽  
Immune System ◽  
Neural Substrates ◽  
Rostral Ventrolateral Medulla ◽  
Ventrolateral Medulla ◽  
Middle Aged ◽  
Transcriptomic Profile ◽  
Age Related ◽  
F344 Rats ◽  
Age Related Changes

The rostral ventrolateral medulla (RVLM) is an area of the brain stem that contains diverse neural substrates that are involved in systems critical for physiological function. There is evidence that aging affects some neural substrates within the RVLM, although age-related changes in RVLM molecular mechanisms are not well established. The goal of the present study was to characterize the transcriptomic profile of the aging RVLM and to test the hypothesis that aging is associated with altered gene expression in the RVLM, with an emphasis on immune system associated gene transcripts. RVLM tissue punches from young, middle-aged, and aged F344 rats were analyzed with Agilent’s whole rat genome microarray. The RVLM gene expression profile varied with age, and an association between chronological age and specific RVLM gene expression patterns was observed [ P < 0.05, false discovery rate (FDR) < 0.3]. Functional analysis of RVLM microarray data via gene ontology profiling and pathway analysis identified upregulation of genes associated with immune- and stress-related responses and downregulation of genes associated with lipid biosynthesis and neurotransmission in aged compared with middle-aged and young rats. Differentially expressed genes associated with the complement system and microglial cells were further validated by quantitative PCR with separate RVLM samples ( P < 0.05, FDR < 0.1). The present results have identified age-related changes in the transcriptomic profile of the RVLM, modifications that may provide the molecular backdrop for understanding age-dependent changes in physiological regulation.

scholarly journals Age-Related Changes in Gait Velocity and Leg Extension Power in Middle-Aged and Elderly People

2000 ◽  
Vol 10 (1sup) ◽  
pp. 77-81 ◽  
Author(s):  
Rumi Kozakai ◽  
Shigeki Tsuzuku ◽  
Kyonosuke Yabe ◽  
Fujiko Ando ◽  
Naoakira Niino ◽  
...  
Keyword(s):  
Elderly People ◽  
Gait Velocity ◽  
Middle Aged ◽  
Leg Extension ◽  
Age Related ◽  
Leg Extension Power ◽  
Age Related Changes

scholarly journals Age-related changes in emotional behavior: Evidence from a 13-year longitudinal study of long-term married couples.

Emotion ◽  
2020 ◽  
Vol 20 (2) ◽  
pp. 149-163 ◽  
Author(s):  
Alice Verstaen ◽  
Claudia M. Haase ◽  
Sandy J. Lwi ◽  
Robert W. Levenson
Keyword(s):  
Longitudinal Study ◽  
Married Couples ◽  
Emotional Behavior ◽  
Age Related ◽  
Age Related Changes
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