According to a recent meta-analysis, which of the following physical activities is the most effective in preventing falls in older adults? O resistance training O yoga O aerobic exercise O balance training
Added by Helen B.
Close
Step 1
Step 1: The question asks to identify the most effective physical activity for preventing falls in older adults, according to a recent meta-analysis. Show more…
Show all steps
Your feedback will help us improve your experience
Thuc Nguyen and 98 other Psychology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
recent research has demonstrated that music-based physical training for elderly people can improve balance, walking efficiency, and reduce the risk of falls (trombetti et al., 2011) As part of of the training, participants walked in time to music and responded to changes in the music's rhythm during a one-hour per week exercise program. After six months, particpants in the training group increased their walking speed and their stride compared to individuals in the control group. The following data are similar to the results obtained in the study. Exercise Group Stride Length: 24 26 22 23 25 17 19 28 22 21 24 25 24 22 23 23 Control Group Stride Length 26 20 18 25 23 16 23 19 20 21 16 17 23 17 20 16
Thuc N.
Virtual Reality and Fall Risk A study was conducted to assess whether 5 weeks of training with virtual reality (VR) can reduce the risk of falls in adults. Thirty-four older adults underwent 15 VR training sessions consisting of walking on a treadmill with a VR simulation. At the end of the VR training program, participants showed improved mobility and gait speed. In the abstract the authors conclude that "[t]readmill training with VR appears to be an effective and practical clinical tool to improve mobility and reduce falls in older adults." Do these results indicate that VR training can cause improvement in mobility and gait speed among older adults? What essential component of both controlled experiments and observational studies is missing from this study? (Source: Shema et al., "Improved mobility and reduced fall risk in older adults after five weeks of virtual reality training," Journal of Alternative Medical Research, $9(2), 171-175 .)$
Geriatric study. A researcher in geriatrics designed a prospective study to investigate the effects of two interventions on the frequency of falls. One hundred subjects were randomly assigned to one of the two interventions: education only $\left(X_{1}=0\right)$ and education plus aerobic exercise training $\left(X_{1}=1\right) .$ Subjects were at least 65 years of age and in reasonably good health. Three variables considered to be important as control variables were gender $\left(X_{2} ; 0\right)=$ female; $1=$ male $j$. ambulance index $\left(X_{3}\right)$. and $a$ strength index $\left(X_{4}\right)$. 'The higher the balance index, the more stable is the subject: and the higher the strength index, the stronger is the subject, Each subject kept a diary recording the number of falls ( $Y$ ) during the six months of the study. The data follow: a. Fit the Poisson regression model (14.113) with the response function $\mu(X, \beta)=$ $\exp \left(\beta_{0}+\beta_{1} X_{1}+\beta_{2} X_{2}+\beta_{2} X_{3}+\beta_{4} X_{4}\right) .$ State the estimated regression co eflicients, their estimated standard deviations, and the estimated response function. b. Obtain the deviance residuals and present them in an index plot. Do there appear to be any outlying cases? c. Assuming that the fitted model is appropriate, use the likelihood ratio test to determine whether gender $\left(X_{2}\right)$ can be dropped from the model; control $\alpha$ at $.05 .$ State the full and reduced models, decision rule. and conclusion. What is the $P$ -value of the test. d. For the fitted model containing only $X_{1}, X_{3},$ and $X_{4}$ in first-order terms, obtain an approximate 95 percent confidence interval for $\beta_{1}$. Interpret your confidence interval. Does aerobic exercise reduce the frequency of falls when controlling for balance and strength?
Recommended Textbooks
Psychology Openstax
Myers' Psychology for AP
Psychology
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD