A study involving 155 women aged 65-75 has found that those who participated in resistance training once or twice weekly for a year significantly improved their selective attention (maintaining mental focus) and conflict resolution (as well as muscular function of course!), compared to those who participated in twice-weekly balance and tone training. Performance on the Stroop test improved by 12.6% and 10.9% in the once-weekly and twice-weekly resistance training groups respectively, while it deteriorated by 0.5% in the balance and tone group. Improved attention and conflict resolution was also significantly associated with increased gait speed.
Resistance training improves attention in older women
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Tai Chi improves blood flow in young adults
A year-long study involving young adults has compared those who engaged in either tai chi or brisk walking or no exercise. Those who practiced tai chi had a significantly higher number of CD 34+ cells compared with those in the other groups. CD 34+ cells are markers for blood stem cells involved in cell self-renewal, differentiation and proliferation. The findings suggest tai chi may prompt vasodilation and increase blood flow.
http://www.eurekalert.org/pub_releases/2014-05/ctco-ctc052814.php
Combining cardio and resistance training: Does the order matter?
It’s well established that performing both cardio- and resistance training in the same session is decidedly better than doing them separately, but does the order matter?
A study involving men aged 18-40, who performed either supervised cardio- immediately followed by strength training, or vice versa, for 24 weeks (2-3 combined cardio- and resistance sessions per week), has found that over the 6 months, the order didn’t matter. However, the group starting with cardio did show slower recovery in the beginning.
Gardening as good as exercise in cutting heart attack risk
A Swedish study of some 4,000 60-year-olds has found that regular “non-exercise” physical activity such as gardening or DIY significantly reduced risk of heart attack or stroke, with those who were most active on a daily basis having a 27% lower risk of a heart attack or stroke and a 30% reduced risk of death from all causes. This was so regardless of how much regular formal exercise was taken.
Exercise helps MCI
A pilot study involving 17 older adults with mild cognitive impairment and 18 controls (aged 60-88; average age 78) has found that a 12-week exercise program significantly improved performance on a semantic memory task, and also significantly improved brain efficiency, for both groups.
Physical fitness crucial for fighting age-related cognitive decline
Three recent studies point to the importance of cardiorespiratory fitness for older adults wanting to prevent cognitive decline.
Limited benefit of physical activity for preventing cognitive decline
A large, two-year study challenges the evidence that regular exercise helps prevent age-related cognitive decline.
The study involved 1,635 older adults (70-89) who were enrolled in the Lifestyle Interventions and Independence for Elders (LIFE) study. They were sedentary adults who were at risk for mobility disability but able to walk about a quarter mile. Participants had no significant cognitive impairment (as measured by the MMSE) at the beginning of the study. Around 90% (1476) made it to the end of the study, and were included in the analysis.
Physical activity linked to better memory for names and faces among older adults
A small study that fitted 29 young adults (18-31) and 31 older adults (55-82) with a device that recorded steps taken and the vigor and speed with which they were made, has found that those older adults with a higher step rate performed better on memory tasks than those who were more sedentary. There was no such effect seen among the younger adults.
Aerobic exercise preserves brain volume and improves cognition in those with MCI
A study involving 35 adults with MCI found that those who exercised four times a week over a six-month period increased their volume of gray matter. But those who participated in aerobic exercise experienced significantly greater gains than those who just stretched, who also showed signs of white matter loss.
Aerobic activity included treadmill, stationary bike or elliptical training.
The study was presented at the annual meeting of the Radiological Society of North America (RSNA) in November, 2016.
Greater muscle strength = better cognitive function
A Finnish study involving 338 older adults (average age 66) has found that greater muscle strength is associated with better cognitive function.
Muscle strength was measured utilising handgrip strength, three lower body exercises such as leg extension, leg flexion and leg press and two upper body exercises such as chest press and seated row.
Rigorous exercise does not slow dementia decline
A number of studies have found that physical exercise can help delay the onset of dementia, however the ability of exercise to slow the decline once dementia has set in is a more equivocal question. A large new study answers this question in the negative.
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