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Danilo de Oliveira Silva, Ronaldo Briani, Marcella Pazzinatto, Deisi Ferrari, Fernando Aragão and Fábio de Azevedo

Individuals with patellofemoral pain (PFP) use different motor strategies during unipodal support in stair climbing activities, which may be assessed by vertical ground reaction force parameters. Thus, the aims of this study were to investigate possible differences in first peak, valley, second peak, and loading rate between recreational female athletes with PFP and pain-free athletes during stair climbing in order to determine the association and prediction capability between these parameters, pain level, and functional status in females with PFP. Thirty-one recreational female athletes with PFP and 31 pain-free recreational female athletes were evaluated with three-dimensional kinetics while performing stair climbing to obtain vertical ground reaction force parameters. A visual analog scale was used to evaluate the usual knee pain. The anterior knee pain scale was used to evaluate knee functional score. First peak and loading rate were associated with pain (r = .46, P = .008; r = .56, P = .001, respectively) and functional limitation (r = .31, P = .049; r = −.36, P = .032, respectively). Forced entry regression revealed the first peak was a significant predictor of pain (36.5%) and functional limitation (28.7%). Our findings suggest that rehabilitation strategies aimed at correcting altered vertical ground reaction force may improve usual knee pain level and self-reported knee function in females with PFP.

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Michael R.M. McGuigan, Roger Bronks, Robert U. Newton, John C. Graham and David V. Cody

Peripheral arterial disease (PAD) is associated with impaired lower extremity function. This study investigated differences in PAD and control participants and the relationship between lower limb strength and clinical measures of PAD severity. Participants were evaluated by 6-min-walk distance, normal and maximal walking speed over 10 m, isometric plantar-flexion strength, and dynamic dorsi-/plantar-flexion strength. Hemodynamic measures of the lower limbs were recorded at rest and after maximal treadmill testing. PAD participants walked significantly less far during the 6-min walk, and there were large differences in normal and maximal walking speeds. Small to moderate differences were found for isometric plantar-flexion strength. In the diseased legs of the PAD participants, resting systolic hallux photoplethysmography was significantly correlated with isokinetic plantar-flexion strength and onset of claudication pain during the 6-min-walk test. In addition to confirming the documented loss of walking endurance, these data suggest that loss of strength of the plantar flexors is associated with increasing PAD impairment.

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Jo-Ana D. Chase, Lorraine J. Phillips and Marybeth Brown

The purpose of this systematic review and meta-analysis was to determine the effects of supervised resistance and/or aerobic training physical activity interventions on performance-based measures of physical functioning among community-dwelling older adults, and to identify factors impacting intervention effectiveness. Diverse search strategies were used to identify eligible studies. Standardized mean difference effect sizes (d, ES) were synthesized using a random effects model. Moderator analyses were conducted using subgroup analyses and meta-regression. Twenty-eight studies were included. Moderator analyses were limited by inconsistent reporting of sample and intervention characteristics. The overall mean ES was 0.45 (k = 38, p ≤ .01), representing a clinically meaningful reduction of 0.92 s in the Timed Up and Go for treatment versus control. More minutes per week (p < .01) and longer intervention session duration (p < .01) were associated with larger effects. Interventions were especially effective among frail participants (d = 1.09). Future research should clearly describe sample and intervention characteristics and incorporate frail populations.

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Diane Austrin Klein, William J. Stone, Wayne T. Phillips, Jaime Gangi and Sarah Hartman

The impact of proprioceptive neuromuscular facilitation (PNF) on physical function in assisted-living older adults (73-94 years old) was studied. A 5-week pretraining period consisting of weekly visits by trainers to participants preceded a 10-week training period of warm-up, PNF exercises, and cool-down. Training progressed from 1 set of 3 repetitions to 3 sets of 3 repetitions. Assessments were conducted at baseline (T1), postpretraining (T2), and posttraining (T3). Eleven of 14 volunteer participants completed the study. Physical function was assessed by range of motion (ROM), isometric strength, and balance and mobility measures. Repeated-measures ANOVA identified 6 measures (sit-to-stand, shoulder- and ankle-flexion ROM, and hip-extension, ankle-flexion, and ankle-extension strength) with statistically significant differences. With the exception of hip-extension strength, these measures were statistically significant from T2 to T3 in post hoc univariate tests. Results indicate that PNF flexibility training can improve ROM, isometric strength, and selected physical-function tasks in assisted-living older adults.

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Casey Mace Firebaugh, Simon Moyes, Santosh Jatrana, Anna Rolleston and Ngaire Kerse

change in the association between physical activity and mortality in advanced age. This article aims to specifically examine the relationship between physical activity, functional status, and mortality over time in advanced age (those aged 80 years and older). The terms “function,” “functional status

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Frances A. Kanach, Amy M. Pastva, Katherine S. Hall, Juliessa M. Pavon and Miriam C. Morey

/community-based interventions. This review examined effects of structured exercise (defined as aerobic walking, with or without complementary modes of exercise) on performance measures, mobility, functional status, healthcare utilization, and quality of life in older adults hospitalized for acute medical illness. Specific

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Edward W. Gregg, Andrea M. Kriska, Kathleen M. Fox and Jane A. Cauley

Self-rated health has been related to functional status, disability, and mortality in a variety of populations. This study examined whether self-rated health was related to physical activity levels independent of functional status in a population of older women. For this study, 9,704 women aged 65-99 rated their health on a scale ranging from excellent to very poor. Physical activity and functional status questionnaires and physical function tests were administered to evaluate levels of physical activity, strength, and function. Comparisons between women in three groups of self-rated health (good and excellent; fair; poor and very poor) indicated that higher self-rated health was strongly related to physical activity independent of physical strength, functional status, and co-morbidity. These findings suggest that physical activity is an important determinant of self-rated health in older women regardless of functional status.

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Katie Crockett, Saija A. Kontulainen, Jonathan P. Farthing, Philip D. Chilibeck, Brenna Bath, Adam D.G. Baxter-Jones and Catherine M. Arnold

strength and fall and fracture risk status ( van Helden et al., 2008 ). The primary purpose of this study was to compare functional status and fracture risk status in postmenopausal women over the age of 50 years with and without a recent DRF. Secondary purposes included exploring the relationship of

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Tomohiro Yasuda

to evaluate the functional status of individuals and to identify and treat those at risk for mobility problems and frailty. In the periodic and field-based simplified approaches, the handgrip strength measurement has been widely used in clinical practice for the assessment of muscle size or strength