A novel accelerometer-based method to describe day-to-day exposure to potentially osteogenic vertical impacts in older adults: findings from a multi-cohort study

Hannam, Kimberly; Deere, KC; Hartley, April; Clark, EM; Coulson, Jo; Ireland, Alex; Moss, Charlotte; Edwards, M H; Dennison, Elaine; Gaysin, Tim; Cooper, Rachel; Wong, Andrew; McPhee, Jamie S.; Cooper, Cyrus; Kuh, Diana; Tobias, Jonathan H

doi:10.1007/s00198-016-3810-5

Cited by 28 publications

(43 citation statements)

References 27 publications

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“…Our findings may also be susceptible to survival bias which would underestimate associations as those healthiest and most active survive to old age, possibly because of lower debilitating illness and greater maintenance of physical function allowing continued participation in PA. Likewise, our findings may have been influenced by inclusion of participants who are more aware of the benefits of PA and keep a more active lifestyle than the general population, particularly as VIBE participants tended to have lower BMI and higher educational level compared with other participants from the three contributing studies who did not participate in VIBE ( Hannam et al, 2016b ).…”

Section: Discussionmentioning

confidence: 91%

“…Our findings suggest that continued participation in both walking and weight bearing exercise may be important for both overall and higher impact PA in older age. To this end, supporting both walking and weight bearing exercises, including activities like tennis and dancing ( Hannam et al, 2016b ), from midlife may be important for an active and functional older life including better skeletal health by promoting both overall and higher impact PA in later life. In addition, aerobics classes may provide a safe way for older adults to achieve exposure to higher impacts ( Hannam et al, 2016c ).…”

Section: Discussionmentioning

confidence: 99%

“…We defined high impact PA as vertical acceleration peaks ≥ 1.5 g, where g values represent g over and above 1 g from earth's gravitational force, and was previously validated in older adults attending an exercise class ( Hannam et al, 2016c ). The ≥ 1.5 g cut-point for higher impacts was selected as very few impacts were observed within higher g bands ( Deere et al, 2016 , Hannam et al, 2016a , Hannam et al, 2016b ). In addition, we derived a measure of overall PA by summing the total number of low, medium and higher magnitude acceleration peaks from all (i.e.…”

Section: Methodsmentioning

confidence: 99%

“…(e.g. running, racquet sports, football, rugby, hockey and dancing – not including walking, cycling or swimming), which are activities that have been shown to produce higher impacts ( Hannam et al, 2016c , Hannam et al, 2016b ). Possible responses were none, occasionally (once a month), frequently (once a week) or very frequently (more than once a week).…”

Section: Methodsmentioning

confidence: 99%

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Associations of lifetime walking and weight bearing exercise with accelerometer-measured high impact physical activity in later life

Elhakeem

Hannam

Deere

et al. 2017

Preventive Medicine Reports

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High impact physical activity (PA) is thought to benefit bone. We examined associations of lifetime walking and weight bearing exercise with accelerometer-measured high impact and overall PA in later life. Data were from 848 participants (66.2% female, mean age = 72.4 years) from the Cohort for Skeletal Health in Bristol and Avon, Hertfordshire Cohort Study and MRC National Survey of Health and Development. Acceleration peaks from seven-day hip-worn accelerometer recordings were used to derive counts of high impact and overall PA. Walking and weight bearing exercise up to age 18, between 18–29, 30–49 and since age 50 were recalled using questionnaires. Responses in each age category were dichotomised and cumulative scores derived. Linear regression was used for analysis. Greater lifetime walking was related to higher overall, but not high impact PA, whereas greater lifetime weight bearing exercise was related to higher overall and high impact PA. For example, fully-adjusted differences in log-overall and log-high impact PA respectively for highest versus lowest lifetime scores were: walking [0.224 (0.087, 0.362) and 0.239 (− 0.058, 0.536)], and weight bearing exercise [0.754 (0.432, 1.076) and 0.587 (0.270, 0.904)]. For both walking and weight bearing exercise, associations were strongest in the ‘since age 50’ category. Those reporting the most walking and weight bearing exercise since age 50 had highest overall and high impact PA, e.g. fully-adjusted difference in log-high impact PA versus least walking and weight bearing exercise = 0.588 (0.226, 0.951). Promoting walking and weight bearing exercise from midlife may help increase potentially osteogenic PA levels in later life.

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Section: Discussionmentioning

confidence: 91%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Associations of lifetime walking and weight bearing exercise with accelerometer-measured high impact physical activity in later life

Elhakeem

Hannam

Deere

et al. 2017

Preventive Medicine Reports

View full text Add to dashboard Cite

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“…Epidemiological studies have traditionally relied upon the use of health questionnaires, thus not providing an objective measure of PA as brief, non-volitional periods of activity will likely be excluded [5]. Accelerometer-based PA readings have been developed as part of the Vertical Impacts on Bone in the Elderly (VIBE) study (a novel method for evaluating day-today vertical impacts from weight-bearing PA, subsequently classified according to impact magnitude) [6]. Vertical accelerations reflect impacts resulting from weight-bearing activity to which the skeleton preferentially responds.…”

Section: Introductionmentioning

confidence: 99%

A diagnosis of knee osteoarthritis does not predict physical activity 2 years later in older adults: findings from the Hertfordshire Cohort Study

et al. 2019

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Osteoarthritis (OA) can negatively impact levels of physical activity (PA), although current clinical advice promotes the benefits of staying active in preventing joint degeneration. In this study, we examine how knee OA, assessed by self-report, clinical assessment and radiographic assessment, impacts upon objectively measured PA 2 years later. The study population is comprised of 114 subjects from the Hertfordshire Cohort Study (HCS). The presence of OA at the knee was determined from self-report, and clinical and radiological examination, defined according to American College of Rheumatology (ACR) criteria and Kellgren and Lawrence grading system. Two years later, Gulf Coast Data Concepts (GCDC) tri-axial accelerometers were used to measure day-today levels of PA. Vertical acceleration peaks over 7 days, expressed in g units, were categorised into low (0.5 ≤ g < 1.0), medium (1.0 ≤ g < 1.5) and high (≥ 1.5 g) impacts. The study comprises 69 men and 45 women. The mean (SD) age was 78.5 (2.6) for men and 78.6 (2.7) for women. Low count numbers were recorded in the medium and high impact bands. We found no significant reduction in low, medium or high impacts in individuals who had been previously diagnosed with self-reported, radiographic or clinical knee OA in this sample after adjustment for age, sex and BMI. In our cohort, participants with knee OA were no less likely to partake in objectively measured weight-bearing activity 2 years after assessment than counterparts without a diagnosis of knee OA.

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Regular Strength and Sprint Training Counteracts Bone Aging: A 10‐Year Follow‐Up in Male Masters Athletes

et al. 2021

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Cross‐sectional and interventional studies suggest that high‐intensity strength and impact‐type training provide a powerful osteogenic stimulus even in old age. However, longitudinal evidence on the ability of high‐intensity training to attenuate age‐related bone deterioration is currently lacking. This follow‐up study assessed the role of continued strength and sprint training on bone aging in 40‐ to 85‐year‐old male sprinters (n = 69) with a long‐term training background. Peripheral quantitative computed tomography (pQCT)‐derived bone structural, strength, and densitometric parameters of the distal tibia and tibia midshaft were assessed at baseline and 10 years later. The groups of well‐trained (actively competing, sprint training including strength training ≥2 times/week; n = 36) and less‐trained (<2 times/week, no strength training, switched to endurance training; n = 33) athletes were formed according to self‐reports at follow‐up. Longitudinal changes in bone traits in the two groups were examined using linear mixed models. Over the 10‐year period, group‐by‐time interactions were found for distal tibia total bone mineral content (BMC), trabecular volumetric bone mineral density (vBMD), and compressive strength index, and for mid‐tibia cortical cross‐sectional area, medullary area, total BMC, and BMC at the anterior and posterior sites (polar mass distribution analysis) (p < 0.05). These interactions reflected maintained (distal tibia) or improved (mid‐tibia) bone properties in the well‐trained and decreased bone properties in the less‐trained athletes over the 10‐year period. Depending on the bone variable, the difference in change in favor of the well‐trained group ranged from 2% to 5%. The greatest differences were found in distal tibia trabecular vBMD and mid‐tibia posterior BMC, which remained significant (p < 0.05) after adjustment for multiple testing. In conclusion, our longitudinal findings indicate that continued strength and sprint training is associated with maintained or even improved tibial properties in middle‐aged and older male sprint athletes, suggesting that regular, intensive exercise counteracts bone aging. © 2021 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.

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A novel accelerometer-based method to describe day-to-day exposure to potentially osteogenic vertical impacts in older adults: findings from a multi-cohort study

Cited by 28 publications

References 27 publications

Associations of lifetime walking and weight bearing exercise with accelerometer-measured high impact physical activity in later life

Associations of lifetime walking and weight bearing exercise with accelerometer-measured high impact physical activity in later life

A diagnosis of knee osteoarthritis does not predict physical activity 2 years later in older adults: findings from the Hertfordshire Cohort Study

Regular Strength and Sprint Training Counteracts Bone Aging: A 10‐Year Follow‐Up in Male Masters Athletes

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