Floor Rise Research Articles

Timed rolling and rising tests in Duchenne muscular dystrophy ambulant boys: a feasibility study.

Functional activities are extensively used in motor assessments of patients with Duchenne muscular dystrophy. The role of timed items has been reported as an early prognostic factor for disease progression. However, there are two functional activities that are not widely assessed in clinical practice among Duchenne muscular dystrophy patients: rolling and bed rising. This study aimed to investigate whether the 360-degree roll (roll) and supine to sit-to-edge (bed rise) measurements are feasible tools reflecting the functional status of ambulatory DMD children by establishing possible correlations between validated measures: the Vignos Scale (VS), timed rise from floor and the 6-Minute Walk Test (6MWT). A total of 32 ambulant boys with DMD were assessed using timed items, the 6MWT and VS. The roll and bed rise are correlated with each other. The 6MWT, the floor rise and VS are correlated with the roll and with the bed rise. Findings offer preliminary empirical evidence addressing feasibility and safety of roll and bed rise measurements. There is a potential clinical utility of these tests in assessing functional status of DMD ambulant patients.

Rising From the Floor in Persons With Parkinson's Disease

Although considerable research has targeted fall prevention among older adults with Parkinson's disease (PD), less is known about their ability to rise from the floor. The aim of the current exploratory study was to examine the relationship between floor rise and physical performance tests. A cross-sectional design was used. Twenty community-dwelling older adults with PD (mean age = 74.8 years, SD = 9.5 years) performed a standardized floor rise test and physical performance assessments in a structured task circuit. Mean time to rise from the floor was 14.9 seconds (SD = 7.6 seconds). Fourteen (70%) participants used a quadruped strategy to rise to stand. Supine-to-stand performance time was significantly correlated with all physical performance measures. Findings serve as a catalyst for nursing and rehabilitation professionals to examine floor rise ability, prevent adverse effects of a critical fall, and instruct fall recovery techniques in clinical settings. [Journal of Gerontological Nursing, 49(1), 50-54.].

Gait and Balance Assessment of Older Adults

This review will outline seminal and contemporary balance and gait measures most commonly used with geriatric clients, along with the administration procedures, clinical utility, and psychometric qualities that support their use. Ten balance and five gait performance tests were reviewed. Balance instruments range from the simple to the complex. These tools quantify older adults’ ability to maintain postural stability during tasks that manipulate sensory conditions and functional activities, and challenge their base of support. Gait assessment is common in geriatric rehabilitation. Frail clients who ambulate with an assistive device can benefit from a more basic locomotion test, whereas seniors at higher mobility levels should be challenged with tasks superimposed on the gait sequence. Recent adaptations of traditional tests include surface changes, technology application, and clinical utility with subsets of older adults such as those with lumbar surgery and postural tremor. Timed floor rise ability more thoroughly addresses the fall risk dimension. Balance and gait assessments quantify physical performance in older adults and are utilized to establish interventions to improve mobility, reduce fall risk, and increase balance confidence. A wide variety of outcome measures exists in geriatric rehabilitation, though tests should be tapered for the functional level of the client. Practitioners should consider test administration for older adults with atypical diagnoses, along with flooring changes, technology adaptation, and timed supine to stand ability. Future research should revisit commonly accepted threshold scores for fall risk.

RISING FROM THE FLOOR IN PERSONS WITH PARKINSON’S DISEASE

While considerable research has targeted gait, balance and preventing falls in individuals with Parkinson’s disease (PD), less in known about the ability to rise from the floor in this population. The aims of this study were to 1) Examine the relationship between locomotion and physical performance tests and the timed supine to stand performance measure and to 2) Identify both the time required and predominant motor patterns utilized by persons with PD to complete to floor rise transition. A cross-sectional design was utilized. Twenty community-dwelling older adults with PD (mean age 74.8+/-9.5 years; 13 men) performed a standardized floor rise test and locomotion tests in a structured task circuit. Subject demographic and anthropometric data were also collected. Statistical analyses included descriptive statistics and Pearson Product Moment correlations. Fifteen subjects (75%) demonstrated the crouch kneel pattern and fourteen (70%) used an all-4’s strategy to rise to stand. The mean time to rise from the floor was 14.9 (+/- 7.6) seconds and slower than published norms for persons without PD. Nine subjects required the use of a chair to perform floor recovery. Supine to stand performance time was significantly correlated with the: Dynamic Gait Index (r= - 0.66; p<0.002), Five Times Sit to Stand Test (r=0.78; p<0.001), Timed Up and Go Test (r=0.74; p<0.001), and gait velocity (r= -0.77; p<0.001). Rising from the floor demonstrates concurrent validity with locomotion and physical performance tests. Floor recovery techniques can be incorporated in fall prevention initiatives in conjunction with PD symptom management.

ACADEMIC PARTNERING IN A COMMUNITY-BASED FALL PREVENTION PROGRAM

Falls are a major cause of disability nationally are and linked to both fractures and fear of falling. The purpose of this study was to assess the effectiveness of a rural community-based fall prevention program using an academic partnership model with seven physical therapy students rotating through six senior centers. One hundred and fifty-four older adults (Mean age: 76.1+/- 8.5) completed Stepping On at six locations. A mixed-methods design was utilized. Physical therapy students partnered with older adult participants to teach exercises, strategize floor recovery techniques, and identify community safety barriers. A descriptive survey tool assessed demographic profiles, falls efficacy, and program effectiveness among participants. Students participated in a follow-up focus group to discuss perspectives on their role in the fall prevention program. Most participants were female (86.4%), lived alone (50.0%) and taking four or more medications (74%). Thirty-eight participants (24.7%) had fallen over the past year. Eighty-eight (57.1%) subjects noted they had less fear of falling following the community-based intervention; moreover, most subjects (74.7%) reported having an improved plan for floor rise after a fall. Major focus group themes underscored students’ enhanced ability to teach exercise and mobility activities with an increased awareness of interdisciplinary fall prevention. Following a collaborative community-based fall prevention program, seniors have a better understanding of fall causes and plan to seek floor recovery assistance. In turn, student teaching and communication skills are reinforced. Student partnering with seniors promotes fall prevention strategies and affords benefits to both students and participants.

Effects of a falls exercise intervention on strength, power, functional ability and bone in older frequent fallers: FaME (Falls Management Exercise) RCT secondary analysis.

Objectives:Falls Management Exercise (FaME) has been shown to reduce falls in frequent fallers and in lower risk sedentary older people. The effects of FaME on the strength, power, physical function and bone health of frequently falling older women are yet to be established.Methods:This paper reports secondary analysis of data from the original randomised controlled trial of FaME in 100 community dwelling women aged ≥65 years with a history of ≥3 falls in the previous year. Intervention was group delivered, weekly one hour tailored dynamic balance and strength exercise classes and home exercise for nine months.Outcome measures included:strength (handgrip, quadriceps, hamstrings, hip abductors, ankles), lower limb explosive power and functional tests (timed up and go, functional reach, timed floor rise and balance), analysed using Linear Mixed Model analysis. Bone Mineral Density (BMD) at hip and spine was measured in a smaller sub-group and analysed using t-tests.Results:Significant time*group interactions in all measures of strength, except isometric ankle dorsiflexion, concentric hamstring and eccentric quadriceps strength. These improvements in strength equated to average improvements of 7-45%. There were also significant improvements in explosive power (W/kg) (18%, p=0.000), timed up and go (16%, p=0.000), functional reach (17%, p=0.000), floor rise (10%, p=0.002) and eyes closed static balance (56%, p=0.000). There was a significant loss of hip BMD in the control group (neck of femur p<0.05; ward’s triangle p<0.02).Conclusion:The FaME intervention improves lower limb strength, power and clinically relevant functional outcomes in frequently falling older women.

Development and Testing of a Hybrid Measure of Muscle Strength in Juvenile Dermatomyositis for Use in Routine Care

To develop and test a hybrid measure of muscle strength for juvenile dermatomyositis (JDM), which is based on the combination of the Manual Muscle Testing in 8 muscles (MMT-8) and the Childhood Myositis Assessment Scale (CMAS) but is more comprehensive than the former and more feasible than the latter. The hybrid MMT-8/CMAS (hMC) is composed of all 8 items of the MMT-8 and 3 items of the CMAS: time of head lift, assessment of abdominal muscles, and floor rise. The score ranges 0-100, with 100 indicating normal muscle strength. Validation procedures were conducted using 3 large multinational patient samples, including a total of 810 JDM patients. The hMC revealed face and content validity, good construct validity, excellent test-retest reliability (intraclass correlation coefficient = 0.99), and internal consistency (Cronbach's α = 0.94), strong responsiveness to clinical change over time (standardized response mean = 0.8 among patients judged as improved by the caring physician), and satisfactory capacity to discriminate patients judged as being in the states of inactive disease or low, moderate, or high disease activity by the physician (P < 0.001) or patients whose parents were satisfied or not satisfied with the illness course (P < 0.001). The hMC was found to possess good measurement properties in a large population of patients with a wide range of disease activity and severity. The new tool, which is primarily intended for use in routine clinical care, should be further tested in other populations of patients evaluated prospectively.

KARAKTERISTIK HIDRODINAMIK DESAIN LAMBUNG KAPAL DENGAN RISE OF FLOOR DAN TANPA RISE OF FLOOR PADA PERAIRAN DALAM DAN DANGKAL

In principle Manoeuvrability vessel is strongly influenced by the design of the hull, propulsion system and steering system. Some of these elements are directly give a significant effect on the hydrodynamic force and moment when the ship maneuver. Analysis of hydrodynamic aspects is a stage that is absolutely necessary in the design process of a ship, especially for ships operating in waters with varying depths. By the time the ship through the shallow waters can increase frictional resistance surge barriers and the vessel which resulted in a decrease in speed boats. The hull form with rise of floor and without the rise of floor by focusing on the analysis of the obstacles, the character of the ship motion and acceleration criteria in deep and shallow water conditions. In numerical calculations for shallow water conditions (shallow water) with a ratio of water depth and draft of the ships, h / d = 1.2 and deep water (deep water) with h / d = 20. Evaluation of the obstacles, the character motion and acceleration for heave, roll, pitch and yaw is done by combining numerical methods through Hullspeed and AQWA Ansys program. From this numerical calculation, it can be analyzed with the rise of the hull form floor and without a rise of floor optimum for deepwater and shallow.

Standing from the Floor in Community-Dwelling Older Adults.

While considerable research has targeted physical performance in older adults, less is known about the ability to rise from the floor among community-dwelling elders. The purposes of the study were to (1) examine physical performance correlates of timed supine to stand performance and (2) identify the predominant motor pattern used to complete floor rise. Fifty-three community-dwelling adults over the age of 60 (x = 78.5 ± 8.5; 36 [68%] females) performed a timed supine to stand test and physical performance assessments. Forty-eight subjects (90.6%) demonstrated an initial roll with asymmetrical squat sequence when rising to stand. Supine to stand performance time was significantly correlated with all physical performance tests, including gait speed (r = -.61; p < .001), grip strength (r = -.30; p < .05), and Timed Up and Go (TUG) performance (r = .71; p < .001). Forty-eight percent of the variance in rise time (p < .001) was attributed to TUG velocity. Findings serve to enhance both functional performance assessment and floor rise interventions.

SAT0455 Preliminary Validation of a New Hybrid Measure of Muscle Strength for Juvenile Dermatomyositis

BackgroundJuvenile dermatomyositis (JDM) is a multisystem vasculopathic disease characterized by muscle inflammation that causes symmetrical muscle weakness. Assessment of muscle strength is, therefore, a fundamental component of the clinical evaluation...

Effect of freeboard and metacentric height on capsizing probability of purse seiners in irregular beam seas

The probability of capsize of purse seiners in irregular beam seas and the effect of freeboard height and metacentric height on trapped water on the deck was investigated. The aim was to quantify a safety level that can be achieved by direct stability assessment for this type of fishing vessel. The amount of trapped water on deck was numerically estimated using a hydraulic flow assumption. The long-term capsizing probabilities were estimated using a piecewise linear approach together with wave statistics from major Japanese fishing areas. The estimated safety level of capsizing probability was compared with that obtained by the IMO weather criterion and by the water-on-deck criterion of the IMO Torremolinos Convention. Numerical results for four typical Japanese purse seiners indicated that the effect of freeboard, on the amount of trapped water on deck, is more important than that of the metacentric height. Besides the metacentric height and the freeboard, it was shown that the danger of capsizing is a function of the rise of floor. The safety level obtained by the capsizing probability approach is generally higher than that based on the IMO weather criterion. However, the water-on-deck criterion provides a higher safety level than the capsizing probability approach for ships with a low rise of floor.

Resistance Exercise Dosage in Older Adults: Single‐ Versus Multiset Effects on Physical Performance and Body Composition

To determine whether variation in resistance exercise volume affects muscle function and physical performance response in older adults. A randomized trial with subjects assigned to a single-set (1-SET) or three-set (3-SET) exercise group. An exercise facility at the University of Queensland. Twenty-eight community-dwelling men and women aged 65 to 78. Progressive resistance training consisting of seven exercises targeting the major muscle groups of the upper and lower body performed on exercise machines twice weekly for 20 weeks at eight-repetition maximum (RM) intensity. Muscle function included isotonic muscle strength (1-RM) of the seven exercises, isokinetic and isometric knee extensor strength, and muscle endurance for the chest press and leg press exercises. Physical performance included timed chair rise, usual and fast 6-m walk, 6-m backwards walk, 400-m walk, floor rise to standing, and stair climbing ability. In addition, body composition was determined using dual energy x-ray absorptiometry. Isotonic muscle strength increased in both exercise groups for all seven exercises (P<.01), with the gain in the 3-SET group greater (P<.05) for the seated row, triceps extension, and knee extension (analysis of covariance). Similarly, muscle endurance gains were greater for the 3-SET than the 1-SET group (P<.01), with no significant difference between groups for isokinetic and isometric knee extensor strength. Both groups improved (P<.05) in the chair rise (1-SET, 10.1%; 3-SET, 13.6%), 6-m backwards walk (1-SET, 14.3%; 3-SET, 14.8%), 400-m walk (1-SET, 3.8%; 3-SET, 7.4%), and stair climbing test (1-SET, 7.7%; 3-SET, 6.4%), with the only difference between groups for the 400-m walk (P<.05). There was no difference between groups for change in body composition. Resistance training consisting of only single-set exercises is sufficient to significantly enhance muscle function and physical performance, although muscle strength and endurance gains are greater with higher-volume work. These findings have application in designing time-efficient exercise regimens to enhance neuromuscular function in older adults.

Improved Physical Performance in Older Adults Undertaking a Short-Term Programme of High-Velocity Resistance Training

Background: The age-related loss of muscle power in older adults is greater than that of muscle strength and is associated with a decline in physical performance. Objective: To investigate the effects of a short-term high-velocity varied resistance training programme on physical performance in healthy community-dwelling adults aged 60–80 years. Methods: Subjects undertook exercise (EX; n = 15) or maintained customary activity (controls, CON; n = 10) for 8 weeks. The EX group trained 2 days/week using machine weights for three sets of eight repetitions at 35, 55, and 75% of their one-repetition maximum (the maximal weight that an individual can lift once with acceptable form) for seven upper- and lower-body exercises using explosive concentric movements. Results: Fourteen EX and 10 CON subjects completed the study. Dynamic muscle strength significantly increased (p = 0.001) in the EX group for all exercises (from 21.4 ± 9.6 to 82.0 ± 59.2%, mean ± SD) following training, as did knee extension power (p < 0.01). Significant improvement occurred for the EX group in the floor rise to standing (10.4 ± 11.5%, p = 0.004), usual 6-metre walk (6.6 ± 8.2%, p = 0.010), repeated chair rise (10.4 ± 15.6%, p = 0.013), and lift and reach (25.6 ± 12.1%, p = 0.002) performance tasks but not in the CON group. Conclusions: Progressive resistance training that incorporates rapid rate-of-force development movements may be safely undertaken in healthy older adults and results in significant gains in muscle strength, muscle power, and physical performance. Such improvements could prolong functional independence and improve the quality of life.

Normal scores for nine maneuvers of the Childhood Myositis Assessment Scale.

To document and evaluate the scores that normal, healthy children achieve when performing 9 maneuvers of the Childhood Myositis Assessment Scale (CMAS). A total of 303 healthy children, 4-9 years of age, were scored as they performed 9 CMAS maneuvers. The data were then evaluated to determine whether normal scores for some maneuvers are age and sex dependent. All children were able to achieve maximum possible scores for the supine to prone, supine to sit, floor sit, floor rise, and chair rise maneuvers. All but 2 4-year-olds achieved a maximum possible score for the arm raise/duration maneuver. Performance of the head lift and sit-up maneuvers varied significantly, depending primarily on age. Children in all age groups had less difficulty performing the leg lift than the head lift or sit-up. The normative data generated by this study are of value for interpreting the serial CMAS scores of children with idiopathic inflammatory myopathies.

High- and Low-Volume Resistance Training Similarly Enhances Functional Performance in Older Adults

1009 It is well known that resistance training improves muscle strength in older adults and may enhance or preserve functional performance. However, it is unclear if the volume of work undertaken in the elderly alters the response in functional performance. PURPOSE: To investigate the effect of a high- versus low-volume resistance training program on functional performance in older adults. METHODS: Thirty-two healthy men and women aged 65–78 years were randomly assigned to either a single-set (SS, n = 16) or 3-set (MS, n = 16) progressive resistance training program for 20 weeks. Groups trained 2 days per week using machine weights at 8 repetitions maximum (8-RM) for 7 upper and lower body exercises. Muscle strength was assessed by the 1-RM and functional performance by a battery of tests (repeated chair rise, usual and fast 6-m walk, 6-m backwards walk, floor rise to standing, stair climb, and 400-m walk time). RESULTS: Twenty-eight subjects completed the study. There was no difference between groups at baseline in muscle strength or functional performance. Whole body muscle strength significantly increased in both groups with greater gains in the 3-set group (MS 32.9 ± 3.1%; SS 18.6 ± 2.7%, mean ± SE; P < 0.01). Significant improvement (time effect, P < 0.01) occurred for both groups in the chair rise (MS 13.6 ± 3.2%; SS 10.2 ± 3.0%), 6-m backwards walk (MS 14.9 ± 3.3%; SS 14.3 ± 4.2%), stair climb (MS 6.4 ± 2.8%; SS 7.7 ± 3.1%) and 400-m walk (MS 7.4 ± 1.4%; SS 3.9 ± 1.2%). There were no interaction (group × time) effects for functional performance and no differences by sex. CONCLUSION: Resistance training that utilizes either a singleset or 3-set regimen may significantly and similarly improve functional performance in community-dwelling older adults. Enhancement of functional performance may prolong independence and improve quality of life.

Effectiveness of a Practice Regimen for Decreasing Floor Rise Time in Older Adults

Effectiveness of a Practice Regimen for Decreasing Floor Rise Time in Older Adults

High- and Low-Volume Resistance Training Similarly Enhances Functional Performance in Older Adults

It is well known that resistance training improves muscle strength in older adults and may enhance or preserve functional performance. However, it is unclear if the volume of work undertaken in the elderly alters the response in functional performance. PURPOSE: To investigate the effect of a high- versus low-volume resistance training program on functional performance in older adults. METHODS: Thirty-two healthy men and women aged 65-78 years were randomly assigned to either a single-set (SS, n = 16) or 3-set (MS, n = 16) progressive resistance training program for 20 weeks. Groups trained 2 days per week using machine weights at 8 repetitions maximum (8-RM) for 7 upper and lower body exercises. Muscle strength was assessed by the 1-RM and functional performance by a battery of tests (repeated chair rise, usual and fast 6-m walk, 6-m backwards walk, floor rise to standing, stair climb, and 400-m walk time). RESULTS: Twenty-eight subjects completed the study. There was no difference between groups at baseline in muscle strength or functional performance. Whole body muscle strength significantly increased in both groups with greater gains in the 3-set group (MS 32.9 ± 3.1%; SS 18.6 ± 2.7%, mean ± SE; P < 0.01). Significant improvement (time effect, P < 0.01) occurred for both groups in the chair rise (MS 13.6 ± 3.2%; SS 10.2 ± 3.0%), 6-m backwards walk (MS 14.9 ± 3.3%; SS 14.3 ± 4.2%), stair climb (MS 6.4 ± 2.8%; SS 7.7 ± 3.1%) and 400-m walk (MS 7.4 ± 1.4%; SS 3.9 ± 1.2%). There were no interaction (group × time) effects for functional performance and no differences by sex. CONCLUSION: Resistance training that utilizes either a singleset or 3-set regimen may significantly and similarly improve functional performance in community-dwelling older adults. Enhancement of functional performance may prolong independence and improve quality of life. ©2004The American College of Sports Medicine

Effectiveness of a Practice Regimen for Decreasing Floor Rise Time in Older Adults

Effectiveness of a Practice Regimen for Decreasing Floor Rise Time in Older Adults

Effects of Lower Extremity Strength Training on Functional Mobility in Older Adults

This study evaluated the effects of a 4-month lower extremity strength-training program on mobility in older adults. Eighty-five older adults (43 experimental, ES, and 42 comparison, CS) with a mean age of 72.3 years served as participants. The ES strength-trained plantar flexors (PF), knee flexors (KF), and knee extensors (KE) 1 hr/day, 3 days a week for 4 months. Both the ES and CS were evaluated for PF, KF, and KE strength (1 RM) and the time required to complete floor rise, chair rise, 50-ft walk, and walking up and down stairs before and after the training intervention. The ES increased (p &lt; .05) both absolute (51.9%) and relative strength (1 RM/body weight, 52.4%) after training. Only chair-rise and floor-rise tasks improved significantly after training. Baseline and posttraining mobility tasks predicted from 1 RMs had low to moderate R values. These results suggest that strength is necessary for mobility, but increasing strength above baseline provides only marginal improvement in mobility for reasonably fit older adults.

Basic regularities governing the subsidence of undermined rock strata and deflection of hanging up roof at shallow and great depths

The influence exerted by depth of seam mining on the displacements of rocks and the formation of zones of tensile stresses is studied. Results are presented for the analytical and numerical solution of corresponding problems of geomechanics, on the basis of which regularities governing the subsidence of the daylight surface, roof deflection, and floor rise, and variations are also established for the parameters defining zones of vertical and horizontal stresses above the working. The boundaries of shallow depths in relation to the span length of working with hanging up roof are determined where regularities of the undermined strata displacement and stress distribution differ in essence from corresponding regularities at great depths.