scholarly journals Maintenance of skeletal muscle function following reduced daily physical activity in healthy older adults: a pilot trial

2019 ◽  
Vol 44 (10) ◽  
pp. 1052-1056 ◽  
Author(s):  
Sara Y. Oikawa ◽  
Damien M. Callahan ◽  
Chris McGlory ◽  
Michael J. Toth ◽  
Stuart M. Phillips
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Skeletal Muscle ◽  
Muscle Strength ◽  
Physical Function ◽  
Pilot Trial ◽  
Maximum Voluntary Contraction ◽  
Energy Restriction ◽  
Daily Physical Activity ◽  
Single Muscle Fibre

Older adults can experience periods of inactivity related to disease or illness, which can hasten the development of physical disability, in part, through reductions in skeletal muscle strength and power. To date no study has characterized adaptations in skeletal muscle physical function in response to reduced daily physical activity. Participants (15 men, aged 69 ± 2 years; 15 women, aged 68 ± 4 years) restricted their daily steps (<750 steps/day) while being energy restricted (–500 kcal/day) for 2 weeks before returning to normal activity levels during recovery (RC; 1 week). Before and after each phase, measures of knee extensor isometric maximum voluntary contraction (MVC), time-to-peak torque, and physical function were performed and muscle biopsies were taken from a subset of participants. Following the energy restriction and step-reduction phase (ER+SR), MVC was reduced by 9.1 and 6.1 Nm in men and women, respectively (p = 0.02), which returned to baseline after RC in men, but not women (p = 0.046). Maximum isometric tension in MHC IIA fibres (p < 0.01) and maximum power production in MHC I and IIA (p = 0.05) were increased by 14%, 25%, and 10%, respectively, following ER+SR. Reductions in muscle strength could not be explained by changes in single muscle fibre function in a subsample (n = 9 men) of volunteers. These data highlight the resilience of physical function in healthy older men in the face of an acute period of ER+SR and demonstrate sex-based differences in the ability to recover muscle strength upon resumption of physical activity.

Effect Of Increased Daily Physical Activity On Lower-extremity Physical Function In Older Adults

2016 ◽  
Vol 48 ◽  
pp. 127-128
Author(s):  
TAKASHI JINDO ◽  
KEISUKE FUJII ◽  
KENJI TSUNODA ◽  
YUYA FUJII ◽  
KEIKO SAKAIDA ◽  
...  
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Lower Extremity ◽  
Physical Function ◽  
Daily Physical Activity

scholarly journals Relationship Between Physical Activity and Function With Quality of Life in Community-Living Older Adults

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 189-189
Author(s):  
Milan Chang ◽  
Olof Geirsdottir ◽  
Inga Thorsdottir ◽  
Palmi Jonsson ◽  
Alfons Ramel ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Physical Activity ◽  
Older Adults ◽  
Muscle Strength ◽  
Physical Function ◽  
Grip Strength ◽  
Community Dwelling ◽  
Walking Distance ◽  
Community Dwelling Older Adults

Abstract Background: Quality of life (QOL) is a multidimensional concept which is often used as an evaluation of a person‘s health and psychological status. Increasing longevity can be associated with better QOL as long as older adults are independent in daily life. The aim of the study was to examine the associations of QOL with muscle strength and physical function among community-dwelling older adults. Methods: The current cross-sectional study had 225 participants (73.7±5.7yrs, 58.2% female) living in Reykjavik, Iceland. QOL measured using the 36-item short-form survey (SF-36). Covariates were anthropometrics, muscle strength, physical function including timed up and go test (TUG), and 6-minute walking distance (6MWD), physical activity per week (PA). Linear regression analysis was used to examine the association of QOL with physical function. Results: The mean QOL score for the study population was 54.9±6.13. The analysis was adjusted for age and gender, body mass index, height, and PA. We found that QOL was associated with better grip strength (B=1.4, P&lt;0.0001), 6MWD (B=0.03, P&lt;0.0001), slower TUG (B=-0.9, P&lt;0.0001), and higher PA (B=0.03 m, P=0.039). However, QOL was not associated with quadriceps leg strength. Conclusion: The study suggests that QOL was associated with better physical function including grip strength, walking ability and the level of PA among community-dwelling older adults in Iceland.

scholarly journals Keeping adults physically active after Falls Management Exercise (FaME) programmes end: development of a physical activity maintenance intervention

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Sarah Audsley ◽  
Denise Kendrick ◽  
Pip Logan ◽  
Elizabeth Orton
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Muscle Strength ◽  
Physical Function ◽  
Intervention Mapping ◽  
Falls Prevention ◽  
Implementation Plan ◽  
Physically Active ◽  
Mapping Approach ◽  
Exercise Programmes

Abstract Background Falls prevention exercise programmes help to improve muscle strength, balance and physical function, and reduce falling rates in older adults. Improvements in muscle strength, balance and physical function are reversed if older adults do not continue to be physically active after falls prevention exercise programmes end. This paper describes the design process of an intervention that aimed to maintain physical activity in older adults exiting falls prevention exercise programmes. Methods The development of the Keeping Adults Physically Active (KAPA) intervention and its implementation plan was guided by Bartholomew’s Intervention Mapping approach. The intervention mapping approach involved (1) performing a needs assessment and developing intervention objectives using previous literature; (2) identifying theory-based intervention strategies from a systematic review and the National Institute of Clinical Excellence guidelines; and (3) designing the KAPA intervention and its implementation plan with the guidance from an expert steering group. Results The KAPA intervention comprised of six group sessions of motivational interviewing, delivered monthly by trained and mentor-supported falls prevention practitioners. Intervention sessions lasted up to 90 min and were delivered in community settings over a 6-month duration. Participant manuals, illustrated exercise books, physical activity diaries and pedometers supported the KAPA intervention. Conclusions The intervention development process, consisting of Bartholomew’s Intervention Mapping approach and the input from an expert steering group, was successful in creating the evidence-based KAPA intervention ready to be evaluated in a feasibility trial.

scholarly journals Associations of pre-pandemic levels of physical function and physical activity with COVID-19-like symptoms during the outbreak

2021 ◽  
Author(s):  
Marguerita Saadeh ◽  
Amaia Calderón-Larrañaga ◽  
Davide Liborio Vetrano ◽  
Philip von Rosen ◽  
Laura Fratiglioni ◽  
...  
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Muscle Strength ◽  
Physical Function ◽  
Respiratory Infections ◽  
Vigorous Physical Activity ◽  
Oldest Old ◽  
Gastrointestinal Symptoms ◽  
National Study ◽  
Activity Levels

Abstract Background One’s physical function and physical activity levels can predispose or protect from the development of respiratory infections. We aimed to explore the associations between pre-pandemic levels of physical function and physical activity and the development of COVID-19-like symptoms in Swedish older adults. Methods We analyzed data from 904 individuals aged ≥ 68 years from the population-based Swedish National study on Aging and Care in Kungsholmen. COVID-19-like symptoms were assessed by phone interview (March–June 2020) and included fever, cough, sore throat and/or a cold, headache, pain in muscles, legs and joints, loss of taste and/or odor, breathing difficulties, chest pain, gastrointestinal symptoms, and eye inflammation. Muscle strength, mobility, and physical activity were examined in 2016–2018 by objective testing. Data were analyzed using logistic regression models in the total sample and stratifying by age. Results During the first outbreak of the pandemic, 325 (36%) individuals from our sample developed COVID-19-like symptoms. Those with slower performance in the chair stand test had an odds ratio (OR) of 1.5 (95% confidence interval [CI] 1.1–2.1) for presenting with COVID-19-like symptoms compared to better performers, after adjusting for potential confounders. The association was even higher among people aged ≥ 80 years (OR 2.6; 95% CI 1.5–4.7). No significant associations were found between walking speed or engagement in moderate-to-vigorous physical activity and the likelihood to develop COVID-19-like symptoms. Conclusion Poor muscle strength, a possible indicator of frailty, may predispose older adults to higher odds of developing COVID-19-like symptoms, especially among the oldest-old.

scholarly journals Habitual Physical Activity and Diabetes Control in Young and Older Adults with Type II Diabetes: A Longitudinal Correlational Study

2021 ◽  
Vol 18 (3) ◽  
pp. 1330
Author(s):  
Chia-Hsun Chang ◽  
Ching-Pyng Kuo ◽  
Chien-Ning Huang ◽  
Shiow-Li Hwang ◽  
Wen-Chun Liao ◽  
...  
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Type Ii Diabetes ◽  
Daily Physical Activity ◽  
Diabetes Control ◽  
Moderate Intensity ◽  
Correlational Study ◽  
Activity Levels ◽  
Daily Physical Activities ◽  
Activity Questionnaire

This study aimed to determine whether daily physical activity in young and older adults with T2DM is associated with diabetes control. A prospective correlational study involving 206 young (≤65 years) and older (>65 years) adults was conducted. The International Physical Activity Questionnaire was used to assess their daily physical activity levels. Patients’ mean HbA1c level was 7.8% (±1.4), and 95.9% of patients had unsatisfactory diabetes control. Performing more minutes per week of moderate-intensity daily physical activity was associated with a lower risk of glycemia in both young and older adults. Furthermore, moderate daily physical activity significantly lowered the risk of glycemia. Health personnel must encourage patients to engage in moderate daily physical activities to improve diabetes control.

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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