Effects of a 12-week, short-interval, intermittent, low-intensity, slow-jogging program on skeletal muscle, fat infiltration, and fitness in older adults: randomized controlled trial

2016 ◽  
Vol 117 (1) ◽  
pp. 7-15 ◽  
Author(s):  
Masahiro Ikenaga ◽  
◽  
Yosuke Yamada ◽  
Yujiro Kose ◽  
Kazuhiro Morimura ◽  
...  
Keyword(s):  
Older Adults ◽  
Skeletal Muscle ◽  
Randomized Controlled Trial ◽  
Controlled Trial ◽  
Short Interval ◽  
Fat Infiltration ◽  
Low Intensity ◽  
Randomized Controlled ◽  
Muscle Fat Infiltration

scholarly journals Effects of Morning Versus Evening Home-Based Exercise on Subjective and Objective Sleep Parameters in Older Adults: A Randomized Controlled Trial

2020 ◽  
pp. 089198872092470
Author(s):  
Jaehoon Seol ◽  
Yuya Fujii ◽  
Taiki Inoue ◽  
Naruki Kitano ◽  
Kenji Tsunoda ◽  
...  
Keyword(s):  
Older Adults ◽  
Randomized Controlled Trial ◽  
Controlled Trial ◽  
Exercise Group ◽  
Healthy Older Adults ◽  
Low Intensity ◽  
Randomized Controlled ◽  
Home Based ◽  
Sleep Parameters ◽  
Objectively Measured

Objective: This study aimed to determine whether the timing of exercise influenced the effects of home-based low-intensity stepping exercises on the sleep parameters of older adults. Method: For 8 weeks, 60 healthy older adults participated in a randomized controlled trial, performing low-intensity aerobic exercise (70-80 bpm) for about 30 minutes every day at home, either in the morning (from waking until 12:00) or evening (18:00 to bedtime). Results: In the evening exercise group, both subjectively and objectively measured sleep latency significantly improved throughout the intervention. Further, postintervention subjective sleep satisfaction was significantly higher in the evening group (6.2 ± 1.3 points) than in the morning group (5.2 ± 1.4 points; P = .006). Additionally, sleep variables related to evening exercise had larger effect sizes (Cohen d) than those performed in the morning. Conclusion: Engaging in low-intensity stepping exercises during the evening is potentially a useful nonpharmacological approach to improving sleep quality among older adults.

scholarly journals Effects of physical activity on strength and skeletal muscle fat infiltration in older adults: a randomized controlled trial

2008 ◽  
Vol 105 (5) ◽  
pp. 1498-1503 ◽  
Author(s):  
Bret H. Goodpaster ◽  
Peter Chomentowski ◽  
Bryan K. Ward ◽  
Andrea Rossi ◽  
Nancy W. Glynn ◽  
...  
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Skeletal Muscle ◽  
Muscle Mass ◽  
Successful Aging ◽  
Controlled Trial ◽  
Cross Sectional ◽  
Fat Infiltration ◽  
Muscle Fat Infiltration ◽  
Loss Of Strength

Considerable evidence suggests that the loss of strength and muscle mass appear to be inevitable consequences of aging. Moreover, aging is associated with an increase in body fat. This study examined whether increased physical activity could prevent or reverse the losses of strength and skeletal muscle mass as well as the gain in fat in older adults. Eleven men and 31 women completed a randomized trial consisting of either a physical activity (PA; n = 22) or successful aging health educational control (SA; n = 20) group. Isokinetic knee extensor strength and computed tomography-derived midthigh skeletal muscle and adipose tissue cross-sectional areas (CSA) were assessed at baseline and at 12 mo following randomization. Total body weight and muscle CSA decreased in both groups, but these losses were not different between groups. Strength adjusted for muscle mass decreased (−20.1 ± 9.3%, P < 0.05) in SA. The loss of strength was completely prevented in PA (+2.5 ± 8.3%). In addition, there was a significant increase (18.4 ± 6.0%) in muscle fat infiltration in SA, but this gain was nearly completely prevented in PA (2.3 ± 5.7%). In conclusion, regular physical activity prevents both the age-associated loss of muscle strength and increase in muscle fat infiltration in older adults with moderate functional limitations.

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