Background: Exercise is an important and effective approach to preventing falls in older people, ... more Background: Exercise is an important and effective approach to preventing falls in older people, but adherence to exercise participation remains a persistent problem. A unique purpose-built exercise park was designed to provide a fun but physically challenging environment to support exercise in a community setting. This project is a randomised controlled trial designed to evaluate the effectiveness of an exercise intervention using an exercise park specifically designed for older people in reducing the risk of falls. Methods/Design: This study will be a parallel randomised control trial with pre and post intervention design. One hundred and twenty people aged between 60 and 90 years old will be recruited from Melbourne suburbs and will be randomly allocated to either an exercise park intervention group (EPIG) or a control group (CG). The CG will receive social activities and an educational booklet on falls prevention. The BOOMER balance test will be used as the primary outcome measure. Secondary outcome measures will include hand grip strength, two minute walk test, lower limb strength test, spatio-temporal walking parameters, health related quality of life, feasibility, adherence, safety, and a number of other psychosocial measures. Outcome assessment will be conducted at baseline and at 18 and 26 weeks after intervention commencement. Participants will inform their falls and physical activity history for a 12-month period via monthly calendars. Mixed linear modelling incorporating intervention and control groups at the baseline and two follow up time points (18 weeks and 26 weeks after intervention commencement) will be used to assess outcomes.
Objective: To investigate the feasibility, effectiveness, and short-term effects of an exercise i... more Objective: To investigate the feasibility, effectiveness, and short-term effects of an exercise intervention using a novel exercise park in improving seniors' balance, physical function, and quality of life. Method: Randomized controlled trial with pre-and post-intervention design (baseline and 18-week intervention) was used. Outcome measures included measures of balance, strength, and function, as well as quality of life and fear of falling. MANCOVA was used to assess differences between groups (control and exercise intervention) over time. Results: Intervention group showed significant improvement on single leg stance (p = .02, 95% confidence interval [CI] = [−8.35, −0.549]), knee strength (p < .01, 95% CI = [−29.14, −5.86]), 2-min walk (p = 0.02, 95% CI = [−19.13, −0.859]), and timed sit to stand (p = .03, 95% CI = [−2.26, −0.143]) tests. Discussion: The exercise park program improved physical function and had high adherence and participation rate. Such intervention has been shown to be safe and therefore might enhance participation in exercise programs for older adults.
Issue addressed: Exercising outdoors provide beneficial effect on mental and physical health for ... more Issue addressed: Exercising outdoors provide beneficial effect on mental and physical health for all ages. However, few older people exercise outdoors other than walking. While outdoor gyms have become increasingly common in Australia, limited outdoor exercise equipment specifically designed for older people is available in public spaces. We have set up and evaluated a unique purpose-built outdoor exercise park for older people in the community setting and demonstrated positive physical and well-being outcomes associated with the provision of this unique exercise mode and social programme. Methods: This study is a reflective narrative describing this innovative exercise approach and reports challenges associated with establishment of the exercise park, conducting the randomised trial, strategies adopted to address these challenges and recommendations for future implementation of this approach in the community.
This study aimed to investigate the acceptability, barriers, enablers, perceived benefits, and ou... more This study aimed to investigate the acceptability, barriers, enablers, perceived benefits, and outcomes in undertaking an exercise intervention using a novel outdoor exercise park designed for senior citizens. This study was a parallel randomised controlled trial with pre- and post-intervention design (outcome assessments at baseline and at eighteen weeks after participation commencement). Twenty-seven independent community-dwelling adults (75.1 ± 7.9 years; seventeen females; ten males) underwent an interview after completing the eighteen-week exercise intervention. A thematic analysis approach was used to evaluate the content of the interviews. Participants reported that the exercise intervention proposed was very enjoyable and had varied perceived benefits. The exercise intervention has been positively rated by the participants. The main outcomes perceived from their participation were physical (e.g. improvements in muscle strength, balance, flexibility, and gait), psychological (e.g., improved confidence and well-being and reduced depression symptoms) and psychosocial (e.g., improved social interaction). Participants also perceived an improvement on their ability to perform activities of daily living (e.g. climbing stairs, tying shoelaces, and catching public transport). The exercise-park program has been shown to be a well-accepted, novel option for older adults to exercise outdoors and therefore might enhance exercise uptake and attendance and sustain participation in exercise programs for older adults in the community.
While training upregulates skeletal muscle Na(+), K(+)-ATPase (NKA), the effects of knee injury a... more While training upregulates skeletal muscle Na(+), K(+)-ATPase (NKA), the effects of knee injury and associated disuse on muscle NKA remain unknown. This was therefore investigated in six healthy young adults with a torn anterior cruciate ligament, (KI; four females, two males; age 25.0 ± 4.9 years; injury duration 15 ± 17 weeks; mean ± SD) and seven age- and BMI-matched asymptomatic controls (CON; five females, two males). Each participant underwent a vastus lateralis muscle biopsy, on both legs in KI and one leg in CON. Muscle was analyzed for muscle fiber type and cross-sectional area (CSA), NKA content ([(3)H]ouabain binding), and α1-3 and β1-2 isoform abundance. Participants also completed physical activity and knee function questionnaires (KI only); and underwent quadriceps peak isometric strength, thigh CSA and postural sway assessments in both injured and noninjured legs. NKA content was 20.1% lower in the knee-injured leg than the noninjured leg and 22.5% lower than CON. NKA...
Background: Exercise is an important and effective approach to preventing falls in older people, ... more Background: Exercise is an important and effective approach to preventing falls in older people, but adherence to exercise participation remains a persistent problem. A unique purpose-built exercise park was designed to provide a fun but physically challenging environment to support exercise in a community setting. This project is a randomised controlled trial designed to evaluate the effectiveness of an exercise intervention using an exercise park specifically designed for older people in reducing the risk of falls. Methods/Design: This study will be a parallel randomised control trial with pre and post intervention design. One hundred and twenty people aged between 60 and 90 years old will be recruited from Melbourne suburbs and will be randomly allocated to either an exercise park intervention group (EPIG) or a control group (CG). The CG will receive social activities and an educational booklet on falls prevention. The BOOMER balance test will be used as the primary outcome measure. Secondary outcome measures will include hand grip strength, two minute walk test, lower limb strength test, spatio-temporal walking parameters, health related quality of life, feasibility, adherence, safety, and a number of other psychosocial measures. Outcome assessment will be conducted at baseline and at 18 and 26 weeks after intervention commencement. Participants will inform their falls and physical activity history for a 12-month period via monthly calendars. Mixed linear modelling incorporating intervention and control groups at the baseline and two follow up time points (18 weeks and 26 weeks after intervention commencement) will be used to assess outcomes.
Objective: To investigate the feasibility, effectiveness, and short-term effects of an exercise i... more Objective: To investigate the feasibility, effectiveness, and short-term effects of an exercise intervention using a novel exercise park in improving seniors' balance, physical function, and quality of life. Method: Randomized controlled trial with pre-and post-intervention design (baseline and 18-week intervention) was used. Outcome measures included measures of balance, strength, and function, as well as quality of life and fear of falling. MANCOVA was used to assess differences between groups (control and exercise intervention) over time. Results: Intervention group showed significant improvement on single leg stance (p = .02, 95% confidence interval [CI] = [−8.35, −0.549]), knee strength (p < .01, 95% CI = [−29.14, −5.86]), 2-min walk (p = 0.02, 95% CI = [−19.13, −0.859]), and timed sit to stand (p = .03, 95% CI = [−2.26, −0.143]) tests. Discussion: The exercise park program improved physical function and had high adherence and participation rate. Such intervention has been shown to be safe and therefore might enhance participation in exercise programs for older adults.
Issue addressed: Exercising outdoors provide beneficial effect on mental and physical health for ... more Issue addressed: Exercising outdoors provide beneficial effect on mental and physical health for all ages. However, few older people exercise outdoors other than walking. While outdoor gyms have become increasingly common in Australia, limited outdoor exercise equipment specifically designed for older people is available in public spaces. We have set up and evaluated a unique purpose-built outdoor exercise park for older people in the community setting and demonstrated positive physical and well-being outcomes associated with the provision of this unique exercise mode and social programme. Methods: This study is a reflective narrative describing this innovative exercise approach and reports challenges associated with establishment of the exercise park, conducting the randomised trial, strategies adopted to address these challenges and recommendations for future implementation of this approach in the community.
This study aimed to investigate the acceptability, barriers, enablers, perceived benefits, and ou... more This study aimed to investigate the acceptability, barriers, enablers, perceived benefits, and outcomes in undertaking an exercise intervention using a novel outdoor exercise park designed for senior citizens. This study was a parallel randomised controlled trial with pre- and post-intervention design (outcome assessments at baseline and at eighteen weeks after participation commencement). Twenty-seven independent community-dwelling adults (75.1 ± 7.9 years; seventeen females; ten males) underwent an interview after completing the eighteen-week exercise intervention. A thematic analysis approach was used to evaluate the content of the interviews. Participants reported that the exercise intervention proposed was very enjoyable and had varied perceived benefits. The exercise intervention has been positively rated by the participants. The main outcomes perceived from their participation were physical (e.g. improvements in muscle strength, balance, flexibility, and gait), psychological (e.g., improved confidence and well-being and reduced depression symptoms) and psychosocial (e.g., improved social interaction). Participants also perceived an improvement on their ability to perform activities of daily living (e.g. climbing stairs, tying shoelaces, and catching public transport). The exercise-park program has been shown to be a well-accepted, novel option for older adults to exercise outdoors and therefore might enhance exercise uptake and attendance and sustain participation in exercise programs for older adults in the community.
While training upregulates skeletal muscle Na(+), K(+)-ATPase (NKA), the effects of knee injury a... more While training upregulates skeletal muscle Na(+), K(+)-ATPase (NKA), the effects of knee injury and associated disuse on muscle NKA remain unknown. This was therefore investigated in six healthy young adults with a torn anterior cruciate ligament, (KI; four females, two males; age 25.0 ± 4.9 years; injury duration 15 ± 17 weeks; mean ± SD) and seven age- and BMI-matched asymptomatic controls (CON; five females, two males). Each participant underwent a vastus lateralis muscle biopsy, on both legs in KI and one leg in CON. Muscle was analyzed for muscle fiber type and cross-sectional area (CSA), NKA content ([(3)H]ouabain binding), and α1-3 and β1-2 isoform abundance. Participants also completed physical activity and knee function questionnaires (KI only); and underwent quadriceps peak isometric strength, thigh CSA and postural sway assessments in both injured and noninjured legs. NKA content was 20.1% lower in the knee-injured leg than the noninjured leg and 22.5% lower than CON. NKA...
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