- Email: [email protected]
Physical activity, sitting and weight gain in Australian women
Abstracts / Journal of Science and Medicine in Sport 14S (2011) e1–e119
physical activity – AOR = 0.48, 95% CI = 0.46, 0.50; highest tertile – AOR = 0.36, 95% CI = 0.34, 0.37). Older adults with the highest odds of functional limitation were those aged 85 years and over (AOR = 7.76, 95% CI = 7.11, 8.46) and those reporting any level of psychological stress (mild psychological distress – AOR = 3.92, 95% CI = 3.57, 4.30; moderate – AOR = 5.64, 95% CI = 4.78, 6.65; severe – AOR = 4.19, 95% CI = 3.55, 4.94). Conclusion: These findings demonstrate an association between physical activity and physical function in older adults, and should be used to inform interventions for this population group. Such interventions would need to take into account other factors such as age of participants and psychological distress.
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Associations between vigorous exercise and moderate activity patterns with disease prevalence in Central Queensland
(OR: 0.73, 0.56–0.96), bone disease (OR: 0.62, 0.39–0.97), and depression and anxiety (OR: 0.48, 0.34–0.68). Undertaking 60 min or more vigorous activity was associated with decreased prevalence of overweight and obesity (OR: 0.61, 0.46–0.80), diabetes (OR: 0.48, 0.28–0.83), heart disease (OR: 0.43, 0.25–0.74), abnormal blood pressure (OR: 0.61, 0.45–0.82), elevated cholesterol (OR: 0.58, 0.41–0.82), arthritis (OR: 0.52, 0.37–0.74), bone disease (OR: 0.49, 0.26–0.91), back pain (OR: 0.74, 0.56–0.98), and depression and anxiety (OR: 0.27, 0.16–0.45). Conclusions: Sufficient physical activity was associated with reduced risk of obesity, depression and anxiety, and selected diseases. Nevertheless, more frequent and stronger associations were evident with health outcomes when respondents accumulated 60 min or more of vigorous exercise. Therefore, vigorous activity patterns might provide additional information when assessing the risk of various hypokinetic diseases and researchers using the Active Australia Physical Activity questions should consider refining the definition of sufficient physical activity to include the accumulation of 60 min of vigorous exercise.
M. Kingsley 1,2,∗ , B. Humphries 1 , V. Dalbo 1
doi:10.1016/j.jsams.2011.11.215
doi:10.1016/j.jsams.2011.11.214 213
1 Institute
for Health and Social Science Research, CQ University, Australia 2 Swansea University, United Kingdom Introduction: In order to gain health benefits, Australian adults are encouraged to accumulate 30 min of physical activity, at moderate or greater intensity, on most days of the week. Sufficient physical activity has been interpreted in various ways. For example, the ACSM has endorsed the recommendation that all healthy adults should undertake a minimum of 30 min of moderate intensity exercise on at least 5 days of the week or 20 min of vigorous activity on at least 3 days of the week. This study investigated associations between self-reported physical activity patterns and selected diseases in randomly selected adults living in Central Queensland, Australia. Methods: 1289 participants (male = 635, female 654) provided responses to a direct-dial, land-based telephone survey that was conducted using a computer-assisted telephoneinterview survey in October–November 2010. Participants were asked to answer questions including age, gender, stature, mass, and health status along with the Active Australia Physical Activity questions. The strength of association between variables was determined using odds ratios and 95% confidence intervals. Results: 42% of respondents reported that they undertook sufficient physical activity (defined as the completion of 150 min or more of moderate and vigorous activity in the past week, where the time of vigorous activity was doubled) and 23% reported greater than 60 min of vigorous activity. Sufficient physical activity was associated with decreased prevalence of overweight and obesity (OR: 0.59, 0.46–0.75), diabetes (OR: 0.65, 0.44–0.96), arthritis
214 Physical activity, sitting and weight gain in Australian women W. Brown 1,∗ , R. Hockey 2 , A. Dobson 2 1 School of Human Movement Studies, University of Queens-
land, Australia 2 School of Population Health, University of Queensland, Australia Introduction: The aim was to determine the relationships between physical activity, sitting time and weight gain over ten years in women who were aged 18–23 in 1996 and 28–33 in 2006. Methods: Participants in the youngest cohort of the Australian Longitudinal Study of Women’s Health (born 1973–1978) completed surveys in 1996, 2000, 2003 and 2006, when they were aged from 18 to 33. 6458 women provided data on weight, physical activity, sitting time, energy intake, smoking, alcohol, oral contraceptive use and demographic and social characteristics. A random effects model for longitudinal analysis was used to estimate annual percentage weight change associated with each variable. Results: Overall the women gained weight at a rate of 0.93% per year, which corresponds to 6.1 kg over ten years for an average weight woman (65 kg). After adjustment for baseline BMI, energy intake, parity, partnership status, smoking, education, hours of paid work and sitting time/physical activity, women who reported doing no physical activity gained an average of 7.9 kg in 10 years, while those in the low (40 to <600 MET min/week), moderate (600 to <1200) and high (>1200) physical activity categories gained 7.1, 6.6 and
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Abstracts / Journal of Science and Medicine in Sport 14S (2011) e1–e119
4.3 kg, respectively. Women who reported sitting for <6 h/day gained an average of 5.4 kg and those who reported sitting ≥6 h/day gained 6.9 kg. Conclusions: Women in the highest physical activity category (corresponding to about 50 min of daily moderate intensity activity) gained (on average) more than 4 kg in ten years. Discussion: These data challenge the belief that high levels of physical activity protect against weight gain at this life stage. Intervention strategies for preventing weight gain in young women should simultaneously consider all the contributing factors, which, in this cohort, include physical activity and sitting time, as well as energy intake, quitting smoking, initial BMI, and changes in partnership and parity status. doi:10.1016/j.jsams.2011.11.216 MULTIDISCIPLINARY GRAND ROUND: FOOT, ANKLE AND LOWER LIMB, 1100–1230, Orion Room 215 Multidisciplinary Grand Round: Foot, ankle and lower limb K. Copeland Alphington Sports Medicine Clinic, Victoria, Australia A highly experienced and interactive multidisciplinary panel will discuss real and complex patient presentations. Real case studies will be presented that lend themselves to the Multidisciplinary treatment model, with differential diagnosis and treatment strategies discussed. This session aims to be both very clinical and interactive between the expert panel members and the audience. The aim of this interactive session is to encourage lively discussion between the expert panel and the audience on processes of Differential diagnosis, required investigations and planned treatment approach.
causes of chest wall pain include the costo-chondral joints, intercostals, fascia and thoracic referral. Failing to diagnose a bony cause of chest wall pain early may allow an athlete to continue training, potentially making the stress reaction or stress fracture worse. Conversely, late diagnosis of a nonbony pathology may lead to time removed from training that is not necessary. Methods: Rowing Australia has an injury surveillance system in operation across all SIS/SAS scholarship holders. This system enables the capture of diagnosis, causes and time lost from training for all injuries. Results: During the 2009 and 2010 domestic and international seasons, amongst elite rowers across Australia, there were 28 cases of chest wall pain that caused a loss of rowing training time. Thirteen of these were confirmed to be bone stress by positive bone scan, while 15 were diagnosed as non bony chest wall pain, with many, but not all confirmed with a negative bone scan. The time cost of a bony injury is 4-5 times greater than non bony. Rib stress reactions generate an average of 47.8 days time lost and rib stress fractures 60.0 days time lost. In comparison with 12.6 days time lost with other chest wall pain. During the same time period, elite rowers presenting with chest wall pain were monitored at each treatment occasion for the presence of a number of subjective and objective markers. The subjective markers were night pain and pain on activities of daily living (e.g. opening a door, carrying a bag). The objective markers were pain response to deep breath, cough, push up and sit up. There are marked differences between the two groups in the onset, severity, number and longevity of these presenting signs that may allow the early differentiation of the two clinical entities. Conclusion: This information, plus the time frames captured by the injury surveillance system, has been used to generate a clearer picture of chest wall pain in rowers. It has enabled the development of a clinical management pathway to guide treating practitioners. doi:10.1016/j.jsams.2011.11.218
doi:10.1016/j.jsams.2011.11.217
217
FREE PAPERS: KNEE INJURY AND PAIN, 1100–1230, Pleiades Room
Does higher anterior knee joint laxity alter landing biomechanics in pubescent girls? Implications for noncontact ACL ruptures
216
C. Wild ∗ , J. Steele, B. Munro
The development of a clinical management pathway for chest wall pain in elite rowers
University of Wollongong, Australia
I. Hooper 1,2,∗ , P. Blanch 1 , J. Sternfeldt 1 1 Australian 2 National
Institute of Sport, Australia Rowing Centre of Excellence, Australia
Introduction: Chest wall pain continues to be a significant problem in elite rowing, generating substantial loss of training time. Typically chest wall pain can originate from bony (i.e. stress fractures) and non bony structures. Non bony
Introduction: From the onset of puberty females are at a greater risk of sustaining a non-contact anterior cruciate ligament (ACL) rupture compared to males. Increased anterior knee laxity (AKL) in females has been proposed as a possible cause of this increased ACL injury risk, due to the associated decrease in dynamic knee joint stability during movements such as landing. Despite this association, there is a dearth of literature investigating the effects of increased AKL on lower limb landing biomechanics in adolescent girls. This study
physical activity – AOR = 0.48, 95% CI = 0.46, 0.50; highest tertile – AOR = 0.36, 95% CI = 0.34, 0.37). Older adults with the highest odds of functional limitation were those aged 85 years and over (AOR = 7.76, 95% CI = 7.11, 8.46) and those reporting any level of psychological stress (mild psychological distress – AOR = 3.92, 95% CI = 3.57, 4.30; moderate – AOR = 5.64, 95% CI = 4.78, 6.65; severe – AOR = 4.19, 95% CI = 3.55, 4.94). Conclusion: These findings demonstrate an association between physical activity and physical function in older adults, and should be used to inform interventions for this population group. Such interventions would need to take into account other factors such as age of participants and psychological distress.
e103
Associations between vigorous exercise and moderate activity patterns with disease prevalence in Central Queensland
(OR: 0.73, 0.56–0.96), bone disease (OR: 0.62, 0.39–0.97), and depression and anxiety (OR: 0.48, 0.34–0.68). Undertaking 60 min or more vigorous activity was associated with decreased prevalence of overweight and obesity (OR: 0.61, 0.46–0.80), diabetes (OR: 0.48, 0.28–0.83), heart disease (OR: 0.43, 0.25–0.74), abnormal blood pressure (OR: 0.61, 0.45–0.82), elevated cholesterol (OR: 0.58, 0.41–0.82), arthritis (OR: 0.52, 0.37–0.74), bone disease (OR: 0.49, 0.26–0.91), back pain (OR: 0.74, 0.56–0.98), and depression and anxiety (OR: 0.27, 0.16–0.45). Conclusions: Sufficient physical activity was associated with reduced risk of obesity, depression and anxiety, and selected diseases. Nevertheless, more frequent and stronger associations were evident with health outcomes when respondents accumulated 60 min or more of vigorous exercise. Therefore, vigorous activity patterns might provide additional information when assessing the risk of various hypokinetic diseases and researchers using the Active Australia Physical Activity questions should consider refining the definition of sufficient physical activity to include the accumulation of 60 min of vigorous exercise.
M. Kingsley 1,2,∗ , B. Humphries 1 , V. Dalbo 1
doi:10.1016/j.jsams.2011.11.215
doi:10.1016/j.jsams.2011.11.214 213
1 Institute
for Health and Social Science Research, CQ University, Australia 2 Swansea University, United Kingdom Introduction: In order to gain health benefits, Australian adults are encouraged to accumulate 30 min of physical activity, at moderate or greater intensity, on most days of the week. Sufficient physical activity has been interpreted in various ways. For example, the ACSM has endorsed the recommendation that all healthy adults should undertake a minimum of 30 min of moderate intensity exercise on at least 5 days of the week or 20 min of vigorous activity on at least 3 days of the week. This study investigated associations between self-reported physical activity patterns and selected diseases in randomly selected adults living in Central Queensland, Australia. Methods: 1289 participants (male = 635, female 654) provided responses to a direct-dial, land-based telephone survey that was conducted using a computer-assisted telephoneinterview survey in October–November 2010. Participants were asked to answer questions including age, gender, stature, mass, and health status along with the Active Australia Physical Activity questions. The strength of association between variables was determined using odds ratios and 95% confidence intervals. Results: 42% of respondents reported that they undertook sufficient physical activity (defined as the completion of 150 min or more of moderate and vigorous activity in the past week, where the time of vigorous activity was doubled) and 23% reported greater than 60 min of vigorous activity. Sufficient physical activity was associated with decreased prevalence of overweight and obesity (OR: 0.59, 0.46–0.75), diabetes (OR: 0.65, 0.44–0.96), arthritis
214 Physical activity, sitting and weight gain in Australian women W. Brown 1,∗ , R. Hockey 2 , A. Dobson 2 1 School of Human Movement Studies, University of Queens-
land, Australia 2 School of Population Health, University of Queensland, Australia Introduction: The aim was to determine the relationships between physical activity, sitting time and weight gain over ten years in women who were aged 18–23 in 1996 and 28–33 in 2006. Methods: Participants in the youngest cohort of the Australian Longitudinal Study of Women’s Health (born 1973–1978) completed surveys in 1996, 2000, 2003 and 2006, when they were aged from 18 to 33. 6458 women provided data on weight, physical activity, sitting time, energy intake, smoking, alcohol, oral contraceptive use and demographic and social characteristics. A random effects model for longitudinal analysis was used to estimate annual percentage weight change associated with each variable. Results: Overall the women gained weight at a rate of 0.93% per year, which corresponds to 6.1 kg over ten years for an average weight woman (65 kg). After adjustment for baseline BMI, energy intake, parity, partnership status, smoking, education, hours of paid work and sitting time/physical activity, women who reported doing no physical activity gained an average of 7.9 kg in 10 years, while those in the low (40 to <600 MET min/week), moderate (600 to <1200) and high (>1200) physical activity categories gained 7.1, 6.6 and
e104
Abstracts / Journal of Science and Medicine in Sport 14S (2011) e1–e119
4.3 kg, respectively. Women who reported sitting for <6 h/day gained an average of 5.4 kg and those who reported sitting ≥6 h/day gained 6.9 kg. Conclusions: Women in the highest physical activity category (corresponding to about 50 min of daily moderate intensity activity) gained (on average) more than 4 kg in ten years. Discussion: These data challenge the belief that high levels of physical activity protect against weight gain at this life stage. Intervention strategies for preventing weight gain in young women should simultaneously consider all the contributing factors, which, in this cohort, include physical activity and sitting time, as well as energy intake, quitting smoking, initial BMI, and changes in partnership and parity status. doi:10.1016/j.jsams.2011.11.216 MULTIDISCIPLINARY GRAND ROUND: FOOT, ANKLE AND LOWER LIMB, 1100–1230, Orion Room 215 Multidisciplinary Grand Round: Foot, ankle and lower limb K. Copeland Alphington Sports Medicine Clinic, Victoria, Australia A highly experienced and interactive multidisciplinary panel will discuss real and complex patient presentations. Real case studies will be presented that lend themselves to the Multidisciplinary treatment model, with differential diagnosis and treatment strategies discussed. This session aims to be both very clinical and interactive between the expert panel members and the audience. The aim of this interactive session is to encourage lively discussion between the expert panel and the audience on processes of Differential diagnosis, required investigations and planned treatment approach.
causes of chest wall pain include the costo-chondral joints, intercostals, fascia and thoracic referral. Failing to diagnose a bony cause of chest wall pain early may allow an athlete to continue training, potentially making the stress reaction or stress fracture worse. Conversely, late diagnosis of a nonbony pathology may lead to time removed from training that is not necessary. Methods: Rowing Australia has an injury surveillance system in operation across all SIS/SAS scholarship holders. This system enables the capture of diagnosis, causes and time lost from training for all injuries. Results: During the 2009 and 2010 domestic and international seasons, amongst elite rowers across Australia, there were 28 cases of chest wall pain that caused a loss of rowing training time. Thirteen of these were confirmed to be bone stress by positive bone scan, while 15 were diagnosed as non bony chest wall pain, with many, but not all confirmed with a negative bone scan. The time cost of a bony injury is 4-5 times greater than non bony. Rib stress reactions generate an average of 47.8 days time lost and rib stress fractures 60.0 days time lost. In comparison with 12.6 days time lost with other chest wall pain. During the same time period, elite rowers presenting with chest wall pain were monitored at each treatment occasion for the presence of a number of subjective and objective markers. The subjective markers were night pain and pain on activities of daily living (e.g. opening a door, carrying a bag). The objective markers were pain response to deep breath, cough, push up and sit up. There are marked differences between the two groups in the onset, severity, number and longevity of these presenting signs that may allow the early differentiation of the two clinical entities. Conclusion: This information, plus the time frames captured by the injury surveillance system, has been used to generate a clearer picture of chest wall pain in rowers. It has enabled the development of a clinical management pathway to guide treating practitioners. doi:10.1016/j.jsams.2011.11.218
doi:10.1016/j.jsams.2011.11.217
217
FREE PAPERS: KNEE INJURY AND PAIN, 1100–1230, Pleiades Room
Does higher anterior knee joint laxity alter landing biomechanics in pubescent girls? Implications for noncontact ACL ruptures
216
C. Wild ∗ , J. Steele, B. Munro
The development of a clinical management pathway for chest wall pain in elite rowers
University of Wollongong, Australia
I. Hooper 1,2,∗ , P. Blanch 1 , J. Sternfeldt 1 1 Australian 2 National
Institute of Sport, Australia Rowing Centre of Excellence, Australia
Introduction: Chest wall pain continues to be a significant problem in elite rowing, generating substantial loss of training time. Typically chest wall pain can originate from bony (i.e. stress fractures) and non bony structures. Non bony
Introduction: From the onset of puberty females are at a greater risk of sustaining a non-contact anterior cruciate ligament (ACL) rupture compared to males. Increased anterior knee laxity (AKL) in females has been proposed as a possible cause of this increased ACL injury risk, due to the associated decrease in dynamic knee joint stability during movements such as landing. Despite this association, there is a dearth of literature investigating the effects of increased AKL on lower limb landing biomechanics in adolescent girls. This study