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Zachary Y. Kerr, Sarah Fields and R. Dawn Comstock

Background:

Little is known about the epidemiology of dog sport–related injuries. This study examines injuries among handlers and dogs in the sport of dog agility.

Methods:

A cross-sectional pilot study captured data on demographics, exposures, and injury for a sample of agility handlers and dogs. Logistic regressions predicted odds of injury.

Results:

Survey of 217 handlers and 431 dogs identified 31 handler injuries (1.55 training injuries per 1000 hours, 2.14 competition injuries per 1000 runs) and 38 dog injuries (1.74 training injuries per 1000 hours, 1.72 competition injuries per 1000 runs). Handlers most commonly injured knees (48.4%) and lower trunk (29.0%). Most common diagnoses were strains (51.6%) and sprains (32.3%). Obese handlers had increased odds of injury compared with normal weight handlers (OR = 5.5, P < .001). Dogs most commonly injured front paws (23.7%) and shoulders (15.8%). Most common diagnoses were strains (44.7%) and cut/scrapes (21.1%). Injury was positively associated with dog’s age (P < .05). Handlers more commonly reported positive physical, emotional, and social motivations for participation than competitive.

Conclusions:

Despite many health benefits, dog agility poses a risk of injury to both handlers and dogs. Future research on specific mechanisms of injury should drive evidence-based injury prevention strategies.

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Diane E. Adamo, Susan Ann Talley and Allon Goldberg

Age-related changes in physical abilities, such as strength and flexibility, contribute to functional losses. However, older individuals may be unaware of what specific physical abilities compromise independent functioning. Three groups of women, aged 60 to 69, 70 to 79, and 80 to 92 years, were administered the Senior Fitness Test (SFT) to determine age differences in physical abilities and risk for functional losses. The oldest group showed significant differences in lower body strength, aerobic endurance, and agility and dynamic balance when compared with the other groups who performed similarly. Across all groups, a faster rate of decline was found for lower body strength (50.6%) and dynamic balance and agility (45.7%) than upper body strength (21.3%) and aerobic endurance (33.6%). Criterion-referenced (CR) fitness standards suggested that 45% of the individuals were at risk for loss of independent functioning. This study highlights age-related differences in physical abilities and the risk for the loss of independence in later life.

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Jakob Tarp, Anna Bugge, Niels Christian Møller, Heidi Klakk, Christina Trifonov Rexen, Anders Grøntved and Niels Wedderkopp

may not provide identical protection against disease. 3 Similarly, more functionally based components of fitness, such as muscular agility, could have distinct physiological consequences. Young people constitute a first line of primordial prevention of noncommunicable diseases as a physically active

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Koren L. Fisher, Bruce A. Reeder, Elizabeth L. Harrison, Brenda G. Bruner, Nigel L. Ashworth, Punam Pahwa, Nazmi Sari, M. Suzanne Sheppard, Christopher A. Shields and Karen E. Chad

), upper body (UB) strength (arm curls), lower body (LB) and UB flexibility (sit-and-reach and back scratch), and dynamic agility (timed up and go test) ( Rikli & Jones, 1999 , 2013 ). The SFT was developed for use in adults aged 60 years and older and has been shown to have acceptable criterion validity

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Raquel Aparicio-Ugarriza, Raquel Pedrero-Chamizo, María del Mar Bibiloni, Gonzalo Palacios, Antoni Sureda, Agustín Meléndez-Ortega, Josep Antoni Tur Marí and Marcela González-Gross

multicomponent battery of PF test validated for an older population 11 and validated as reference ranges for Spanish older adults proposed by Pedrero-Chamizo et al. 12 Lower body strength by the chair stand test, agility/dynamic balance by the 8-foot up-and-go test, aerobic endurance by the 6-minute walk test

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Helen M. Binkley and Lauren E. Rudd

measures below Strength: arm curl—AE: sig. greater at end of training and 4-wk post, but decreasing; at 6-wk post, back to baseline Strength: chair stand—AE: sig. greater at end of training and at each post, but declining back toward baseline Agility: 8-ft up and go—AE: sig. decrease in time at end of

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Ro DiBrezzo, Barbara B. Shadden, Blake H. Raybon and Melissa Powers

Loss of balance and falling are critical concerns for older adults. Physical activity can improve balance and decrease the risk of falling. The purpose of this study was to evaluate a simple, low-cost exercise program for community-dwelling older adults. Sixteen senior adults were evaluated using the Senior Fitness Test for measures of functional strength, aerobic endurance, dynamic balance and agility, and flexibility. In addition, measures of height, weight, resting blood pressure, blood lipids, and cognitive function were obtained. Participants then attended a 10-week exercise class including stretching, strengthening, and balance-training exercises. At the completion of the program, significant improvements were observed in tests measuring dynamic balance and agility, lower and upper extremity strength, and upper extremity flexibility. The results indicate that exercise programs such as this are an effective, low-cost solution to improving health and factors that affect falling risk among older adults.

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Laura Capranica, Monica Tiberi, Francesco Figura and Wayne H. Osness

This study compared functional fitness scores of American and Italian older adults on the AAHPERD test battery for adults over 60 years old. Sedentary participants (N = 186, age 60–79 years) undertook the 6 AAHPERD test items: Between American and Italian men, no statistically significant difference was found for coordination and endurance. American men scored better on flexibility and strength, whereas Italian men scored better on body mass index (BMI) and agility. Between American and Italian women, no statistically significant difference was found for BMI and agility. American women scored better on coordination and endurance, whereas Italian women scored better on flexibility and strength. The data suggest that the AAHPERD test battery is an appropriate tool for assessing and comparing functional fitness levels of older adults in different societies.

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Martin G. Jorgensen, Uffe Laessoe, Carsten Hendriksen, Ole B.F. Nielsen and Per Aagaard

The aims of the current study were to examine the intrarater intersession reproducibility of the Nintendo Wii agility and stillness tests and explore the concurrent validity in relation to gold-standard force-plate analysis. Within-day intersession reproducibility was examined in 30 older adults (age 71.8 ± 5.1 yr). No systematic test–retest differences were found for the Wii stillness test; however, the Wii agility test scores differed systematically between test sessions (p < .05). The Wii stillness test yielded a test–retest ICC of .86 (95% CI 0.74–0.93), CV of 6.4%, LOA of 11.0, and LOA% of 17.9%. Likewise for the Wii agility test ICC was .73 (95% CI 0.50-0.86), CV 5.3%, LOA 1.8, and LOA% of 14.6%. Wii stillness scores correlated to force plate measures (r = .65–.82, p < .01), reflecting moderate to excellent validity. In conclusion, it appears that the Wii stillness test represents a low-cost, objective, reproducible, and valid test of undisturbed postural balance in community-dwelling older adults.

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Roberta E. Rikli and C. Jessie Jones

This article describes a nationwide study conducted to develop normative performance data for community-residing older adults. The physical parameters assessed are strength, aerobic endurance, flexibility, and agility/balance. Body mass index was also assessed as an estimate of body composition. The sample comprised 7,183 participants from 267 sites in 21 states. Summary data (M, SD, and percentiles) are reported separately for men and women in 5-year age groups. Results reveal a pattern of decline across most age groups on all variables. ANOVA and post hoc comparisons indicated a significant main effect for age on all variables and that most 5-year age-group declines were significant (p < .007). ANOVAs also revealed a significant main effect for gender on all test items (p < .0001): Men scored better on strength, aerobic endurance, and agility/balance; women scored better on flexibility. The data provide information about normal variations within and usual rates of change across age groups, and they provide a database for subsequent evaluation of individual and group performance.