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PubMed2004

Measuring and improving health outcomes in Medicare: the Medicare HOS program.

The Medicare Health Outcomes Survey (HOS) (originally called the Health of Seniors Survey) was developed as a longitudinal performance measure to assess the physical functioning and mental well being of Medicare beneficiaries over time. The survey was implemented nationally in Medicare managed care organizations (MCOs) as part of Medicare HEDIS, 3.0/1998 and continues today. In 1998, a pilot test of the HOS in Medicare FFS was conducted; the pilot test concluded in 2001. This overview discusses the importance of functional status assessment, reviews the goals of the HOS, and explains how researchers and quality improvement professionals are using the data to explore functional status measurement issues, describe policy and programmatic implications for CMS, and identify opportunities to improve health care practice.

Humans↗

PubMed1994

Smoking, alcohol, and neuromuscular and physical function of older women. Study of Osteoporotic Fractures Research Group.

OBJECTIVE: To determine the associations of current and lifetime smoking and alcohol use with physical function in an older population. DESIGN: Survey. SETTING: Four clinic centers in the United States. PARTICIPANTS: A total of 9704 community-dwelling, ambulatory white women 65 years or older recruited from four areas of the United States. MAIN OUTCOME MEASURES: Twelve performance tests of muscle strength, agility and coordination, gait and balance, and self-reported functional status. RESULTS: Compared with women who never smoked, current smokers had significantly poorer function on all of the performance measures except grip strength after adjusting for age, history of stroke, body mass index, clinic site, physical activity, and alcohol use (P < .05). This decrease in function was 50% to 100% as great as that associated with a 5-year increase in age, and most measures worsened with increasing numbers of pack-years. Compared with current moderate drinkers, nondrinkers had significantly poorer function on all of the performance measures except tandem walk (P < .05). Evaluation of a dose effect with alcohol was limited by the small number of heavy drinkers in the study. CONCLUSIONS: In this population, women who currently smoke are weaker and have poorer balance and poorer performance on measures of integrated physical function than nonsmokers. Smoking is associated with a decline in physical function. Current moderate drinkers have better physical function compared with nondrinkers, but associations of function with heavy drinkers could not be assessed.

Activities of Daily Living↗

PubMed1992

Rehabilitation and Parkinson's disease.

In this study we evaluated the efficacy of physical therapy together with drug therapy in a group of parkinsonian patients, compared with a group of patients treated using drug therapy only. The physical therapy program lasted four months and included passive and active mobilization exercises, adopted for postural control and equilibrium, walking and prevention of contractures and ankylosis. The assessment was accomplished by means of clinical rating scales and motor performance tests. Patients treated by means of physiotherapy showed an improvement at the end of the study in both clinical scales and motor performance tests. This improvement was noted in both patients with less severe and more severe symptoms as well as in those with shorter and longer disease duration. It is not easy to assess the role played by physical therapy due to the difficulty of an objective evaluation; our results, however, show an improvement in the functional performance of patients and suggest the usefulness of physical therapy associated with drug therapy in a comprehensive treatment for Parkinson's disease.

Aged↗

PubMed2002

Change in physical performance over time in older women: the Women's Health and Aging Study.

BACKGROUND: Although lower and upper extremity performance measures are widely used and represent validated physical function measures in older adults, there is limited information regarding the magnitude of changes in these measures over time. This study (i) assesses prospective changes in physical performance measures, (ii) defines a summary score that demonstrates a significant amount of change over time, and (iii) examines rates of decline according to age and baseline performance levels. METHODS: Data from the Women's Health and Aging Study (WHAS) were analyzed to assess change in the one third most disabled older women living in the community. Lower extremity function was assessed using walking speed, balance, and chair stands tests. The putting-on-blouse test, the lock and key test, the Purdue Pegboard test, and grip strength were used to gauge upper extremity function. Continuous and categorical summary performance scores were calculated using continuous and categorical data of lower and upper performance measures. RESULTS: After 3 years, lower extremity performance measures declined by 16%-27%, while upper extremity performance measures declined less (7%-24%). For lower extremity function, the continuous summary performance score showed a slightly greater 3-year decline from baseline (decline vs baseline mean: 23%; decline vs SD of the baseline mean: 59%) than the categorical score (22% and 41%, respectively). Older age and intermediate level of baseline performance were associated with the greatest decline, especially for lower extremity function. CONCLUSIONS: In moderately to severely disabled women aged 65 or older, lower extremity measures show more change over 3 years than upper extremity measures. Among the lower extremity summary scores, the continuous score changes more over time than the categorical score with respect to the baseline SD. The lower extremity continuous summary performance score may be a useful outcome measure for clinical studies of physical performance in older women.

Aged↗

PubMed2000

Muscle function assessment in children.

Assessment of muscle function has a range of applications, including appraisal of the presence and severity of muscle weakness and fatigability, examination of the effectiveness of intervention programmes and development and monitoring of training programmes. Muscle function assessment is routinely performed in rehabilitation, physical education, coaching and research. Procedures have been extensively examined in adults, but not in children. The aim of this review is to bring to the forefront the issue of paediatric muscle function assessment. Objective methods of muscle function assessment are critically analysed with specific attention to the issues of applicability, validity and reliability. Each of the methods reviewed (isokinetic dynamometry, hand-held dynamometry, field tests, and standard weights equipment) has its limitations. All procedures have been occasionally studied for validity and reliability and optimal procedures have yet to be identified. Methodological limits can be generalized to the type and speed of activation, standardization of procedures, subject familiarization, gravity and size and psychological influences. It is important for administrators of muscle function tests to be aware of the various factors that can both influence and confound interpretation. It was concluded that muscle function assessment in children requires significant further investigation. Although there is a wide range of procedures available, there is limited and equivocal research proving validity and reliability. Widespread use of the most valid and reliable methods is encouraged. Future research directions are also considered.

Adolescent↗

PubMed2000

Management outcomes for ruptured and unruptured aneurysms in the elderly.

OBJECTIVE: In a patient older than 70 years, the decision to treat an intracranial aneurysm remains difficult whether it is ruptured or unruptured. We sought to review our institutional risks of treatment of such lesions in the context of the risks of rupture and its associated morbidity and mortality in this age group. METHODS: One hundred twenty-nine consecutive patients aged 70 years or older, who were treated at a single institution for an intracranial aneurysm, were retrospectively reviewed. Forty patients were treated for unruptured aneurysms, and 89 patients presented after subarachnoid hemorrhage. Seven additional patients in this age group who had solely intracavernous lesions, as well as one patient with a dolichoectatic fusiform basilar lesion, were excluded. Management outcomes were assessed using a modification of the Glasgow Outcome Scale, and additional physical and functional disability was assessed using the Barthel index and the Reintegration to Normal Living index. RESULTS: Six-month outcomes for the unruptured group were: excellent, 70%; good, 15%; fair, 5%; poor, 7.5%; and death (2.5%). Outcomes for all patients with ruptured lesions (including those not offered aggressive therapy) were: excellent, 34%; good, 9%; fair, 5.6%; poor, 3.4%; and death, 45%. Long-term follow-up was performed by questionnaire to assess physical and functional disability. Although physical disability (Barthel index) was similar among survivors, the Reintegration to Normal Living index, a global assessment of function, was significantly higher in patients with unruptured aneurysms (84.8 versus 70.1; P = 0.05), which highlights the disabling effects of hemorrhage. CONCLUSION: On the basis of an individual treatment center's management risks, annual aneurysmal rupture rates can be estimated that justify treatment in this difficult patient population. Despite recent controversy regarding aneurysmal hemorrhage rates, we think that symptomatic unruptured aneurysms should be treated and good results can be achieved, even in older patients.

Activities of Daily Living↗

PubMed2002

Effects of acute physical exercise characteristics on cognitive performance.

The effect of physical exercise on mental function has been widely studied from the beginning of the 20th century. However, the contradictory findings of experimental research have led authors to identify several methodological factors to control in such studies including: (i) the nature of the psychological task; and (ii) the intensity and duration of physical exercise. The purpose of this article is to provide information, from the perspective of performance optimisation, on the main effects of physical task characteristics on cognitive performance. Within this framework, some consistent results have been observed during the last decade. Recent studies, using mainly complex decisional tasks, have provided the research community with clear support for an improvement of cognitive performance during exercise. Diverse contributing factors have been suggested to enhance cognitive efficacy. First, an increase in arousal level related to physical exertion has been hypothesised. Improvement in decisional performance has been observed immediately after the adrenaline threshold during incremental exercise. Such positive effects could be enhanced by nutritional factors, such as carbohydrate or fluid ingestion, but did not seem to be influenced by the level of fitness. Second, the mediating role of resource allocation has been suggested to explain improvement in cognitive performance during exercise. This effect highlights the importance of motivational factors in such tasks. Finally, when the cognitive performance was performed during exercise, consistent results have indicated that the dual task effect was strongly related to energetic constraints of the task. The greater the energy demand, the more attention is used to control movements.

Arousal↗

PubMed2002

Surgical experience in patients with cystic fibrosis: a 25-year perspective.

The spectrum of surgical diseases in patients with cystic fibrosis (CF) has not been comprehensively studied. A retrospective review of 792 consecutive patients with CF presenting over a 25 year period (1970-1994) was made to determine the incidence of operations, procedures performed, complications encountered, and impact on physical development and pulmonary function tests (PFTs). A total of 191 operations were performed on 130 (16%) of the 792 patients; 98 operations (51%) were abdominal, 58 (30%) thoracic, and 31 (16%) hernias; 64 were male, and 66 female; average age was 14 +/- 10 years. Complications occurred in 12 (16%); 9 deaths were from progressive respiratory failure, 2 from superficial wound infections, and 1 from an episode of line sepsis. In the first 15 years, 9 complications occurred in 126 operations vs. 3 in 73 operations during the last 10 years. Operations were classified as emergent, urgent, or elective. Of the 9 deaths, 8 occurred after emergent or urgent operations (4 abdominal and 4 thoracic), while 1 death occurred following elective herniorrhaphy. For each subgroup, (abdominal, thoracic, and hernia), there was no difference in height/weight indicies, peak flow, forced vital capacity (FVC), forced expired volume in 1 sec (FEV(1)), or FEV(1)/FVC ratio when comparing 1 year preoperation and 1 year postoperation. In conclusion, patients in this high-risk population were operated on with few complications, but when a complication occurred it tended to be pulmonary and fatal (4.7% of all operations). Furthermore, operations did not cause significant deteriorations in PFTs and they did not cause these children to fall off their expected age-adjusted growth curves.

Abdomen↗

PubMed1975

Muscular exertion: a test of pituitary function in children.

The elevated level of growth hormone after moderate standardized physical exercise was compared with that induced by intravenous arginine infusion and by insulin induced hypoglycemia in children with normal pituitary function. Tests were performed on 49 prepubertal children (34 boys and 15 girls); in 42 cases the increase was significant for all three tests, in 5 cases the response was minimal after insulin stimulation but normal after arginine and physical exertion; in 1 case arginine produced no response but the other tests were positive; in 1 case there was a response to arginine but none to insulin or physical exertion. The results indicate that frequently more than one test is necessary for the diagnosis of normal pituitary function; physical exertion being a physiologic test, is simple to perform, acceptable to the children and without side effects. It appears the test of first choice because it can be used in patients seen ambulatorily, other tests being performed in case of doubt or negative response.

Arginine↗

PubMed1999

Quality of life in patients with vertebral fractures: validation of the Quality of Life Questionnaire of the European Foundation for Osteoporosis (QUALEFFO). Working Party for Quality of Life of the European Foundation for Osteoporosis.

Vertebral fractures may be minor or lead to pain, decreased physical function, immobility, social isolation and depression, which together contribute to quality of life. A Working Party of the European Foundation for Osteoporosis has developed a specific questionnaire for patients with vertebral fractures. This questionnaire, QUALEFFO, includes questions in the domains pain, physical function, social function, general health perception and mental function. QUALEFFO was validated in a multicenter study in seven countries. The study was done in 159 patients aged 55-80 years with clinical osteoporosis, i.e., back pain and other complaints with at least one vertebral fracture and lumbar bone mineral density T-score <-1. Patients with a recent vertebral fracture were excluded because of unstable disease. Controls were age- and sex-matched, and did not have chronic back pain or vertebral fractures. Subjects with conditions exerting a major influence on quality of life were excluded. The QUALEFFO was administered twice within 4 weeks and compared with a generic questionnaire, the Short Form 36 of the Medical Outcomes Study (SF-36). Standard spinal radiographs were made for assessment of vertebral height. Seven questions were removed from the analysis because of low response rate, linguistic ambiguities or redundancy. The 41 remaining questions were analyzed for repeatability, internal consistency and the capacity to discriminate between patients with vertebral fractures and controls. Comparison with the SF-36 was performed within similar domains by conditional logistic regression and by receiver operating characteristic (ROC) curves. The repeatability of QUALEFFO was good (kappa statistics 0.54-0.90) and 26 of 41 questions had a kappa score >/=0.70. The internal consistency of the five domains was adequate, with Crohnbach alpha around 0.80. All except five questions discriminated significantly between patients and controls. The median scores of QUALEFFO were significantly higher in patients with vertebral fractures than in controls in all five domain (p<0. 001), which is consistent with decreased quality of life in patients with osteoporosis. Spinal radiographs were assessed using the McCloskey-Kanis algorithm. According to this, 124 patients (78%) had vertebral fractures of >/=3 SD severity, in contrast with 7 controls (4%). Significant correlations existed between scores of similar domains of QUALEFFO and the SF-36, especially for pain, physical function and mental function. All five domains within each questionnaire discriminated significantly between fracture cases and controls. The odds ratios for pain and social function were greater for QUALEFFO, while general health perception was more discriminating using the SF-36. The ROC curve analysis of QUALEFFO indicated that all five domains were significantly predictive of vertebral fractures. When comparing similar domains of the two questionnaires, QUALEFFO domains demonstrated significantly better performance for pain, physical function and social function. The QUALEFFO total score and SF-36 physical composite score showed similar performance. In conclusion, QUALEFFO is repeatable, coherent and discriminates well between patients with vertebral fractures and control subjects. The results of this study confirm the decreased quality of life in patients with vertebral fractures.

Aged↗

PubMed2002

Body composition of 80-years old men and women and its relation to muscle strength, physical activity and functional ability.

OBJECTIVE: To measure body composition and analyse the relation to muscle strength, physical activity and functional ability in healthy, old subjects, and to relate the results to an optimal BMI level for the elderly. SETTING: Subjects aged 80 years living at home from the 1914-population in Glostrup, Denmark. SUBJECTS AND METHOD: 121 men and 113 women had their height and weight measured. Body fat mass and fat-free mass were assessed by bioelectrical impedance. Muscle strength was measured as handgrip, elbow flexion, knee extension, body flexion and body extension. Physical activity was self reported and functional ability was assessed by the Physical Performance Test (PPT) and self reported mobility including information about tiredness and help. RESULTS: After dividing BMI into three groups: BMI < 24, BMI 24-29 and BMI > 29 no relationship was seen between a BMI interval of 24-29 kg/m2, and physical activity and functional ability. BMI was related to body fat mass, and FFM was related to muscle strength. Muscle strength was related to mobility and PPT. Mobility and PPT were mutually related and were related to physical activity. CONCLUSION: Our cross sectional study did not support newly proposed guidelines for the elderly of an optimal BMI interval of 24-29 kg/m2. We found relations between body composition, muscle strength, physical activity and functional ability.

Adipose Tissue↗

PubMedDate not supplied

Chronic pain and posttraumatic stress symptoms in litigating motor vehicle accident victims.

OBJECTIVE: There has been little research examining chronic pain and posttraumatic stress symptoms in persons injured in motor vehicle accidents. The purpose of this study was to evaluate differences in physical injury and impairment, psychological distress, and pain coping strategies in litigating chronic pain patients low and high in motor vehicle accident-related posttraumatic stress symptoms. DESIGN: A total of 160 consecutive chronic pain patients referred for psychological-legal assessment underwent semistructured interview and testing. The testing battery included the Minnesota Multiphasic Personality Inventory-2, the Multidimensional Pain Inventory, the Sickness Impact Profile, and the Coping Strategies Questionnaire. Using the sample-specific median split of 18 posttraumatic stress symptoms on the Minnesota Multiphasic Personality Inventory-2 Posttraumatic Stress Disorder scale, chronic pain patients were categorized as evidencing low or high levels of posttraumatic stress symptoms. RESULTS: The findings indicate that participants evidencing high posttraumatic stress symptoms had more physical impairment, psychological distress, and maladaptive pain coping strategies and were more likely to be treated with antidepressants, other medications, and psychological management than participants evidencing low posttraumatic stress symptoms. A discriminant function analysis was performed using the full combination of physical injury and impairment, psychological distress, and pain coping variables in the prediction of posttraumatic stress symptom-defined group membership. The resulting discriminant function accounted for 61% of the between-group variance and correctly classified 92% of participants who were low in posttraumatic stress symptoms and 88% of participants who were high in posttraumatic stress symptoms. CONCLUSIONS: Chronic pain and posttraumatic stress symptoms in litigating motor vehicle accident victims are associated with increased physical and psychological morbidity.

Accidents, Traffic↗

PubMed2002

Physical impairment and disability: relationship to performance of activities of daily living in community-dwelling older men.

BACKGROUND AND PURPOSE: The decline of physical function of older adults, associated with loss of independent living status, is a major public health concern. The purpose of this study was to examine the relationship of physical impairment and disability to performance of activities of daily living (ADL) among community-dwelling older adults. SUBJECTS AND METHODS: Eighty-three community-dwelling older men who were referred to a comprehensive outpatient geriatric evaluation program (mean age=75.5 years, SD=7.0, range=64-97) were examined. Measurements of physical impairment (muscle force production, flexibility, and fitness) and physical disability (gait speed, stride length, risk for recurrent falls, and physical function) were recorded. RESULTS: A stepwise linear regression was used to determine the relationship of physical impairments and disability measures with ADL. The results indicated that walking speed, fall risk, and muscle force contributed independently to the characterization of the activities of daily living of the community-dwelling older men studied (adjusted R2=.68; F=56.81; df=3,80; P<.001). Using a principal components factor analysis, 4 domains were identified that explained 68.2% of the variance in performance of ADL: (1) mobility/fall risk=26.5%, (2) coordination=15%, (3) fitness=14.7%, and (4) flexibility=12.0%. DISCUSSION AND CONCLUSION: The identification of domains of physical function may be useful to physical therapists in the development of interventions targeted for physical impairments and disabilities that contribute to deficits in performance of ADL. Targeting interventions for physical impairments and disabilities related to function may improve the effectiveness of physical therapist interventions and reduce the loss of independence among community-dwelling older people.

Activities of Daily Living↗

PubMed1998

Impaired skeletal muscle endurance related to physical inactivity and altered lung function in COPD patients.

STUDY OBJECTIVE: The aims of this work were to determine (1) whether patients with COPD have impaired skeletal muscle performance (ie, maximal strength and endurance) compared with healthy subjects, and (2) whether the level of physical activity, body composition, and lung function are related to skeletal muscle performance in COPD patients. METHODS: Seventeen COPD patients and eight healthy age-matched control subjects performed maximum voluntary contraction (MVC) of the quadriceps and an endurance test consisting of dynamic contractions of the quadriceps against 20% of MVC at an imposed regular pace until exhaustion. The endurance test duration determined the muscle "limit time" (Tlim). A score of physical activity (PA score) was obtained using an adapted physical activity questionnaire for the elderly, and body composition was measured by the bioelectrical impedance method. Symptom-limited oxygen uptake (VO2 sl) was also assessed in COPD patients using a maximal incremental exercise test. RESULTS: The results showed that Tlim and PA score were significantly decreased in COPD patients (p<0.05). Significant positive correlations were found in the COPD group between Tlim and the PA score (r=0.60; p<0.05), FEV1 (r=0.52; p<0.05), and PaO2 (r=0.63; p<0.05). The same results were found between the PA score and VO2 sl (r=0.57; p<0.05) and FEV1 (r=0.63; p<0.05). CONCLUSION: These findings indicate impaired skeletal muscle endurance in COPD patients related to altered lung function and associated physical inactivity.

Body Composition↗

PubMed1993

The clinical value of different treatment objectives and degrees of freedom in radiation therapy optimization.

With inverse radiation therapy planning methods, both biological and physical objective functions can be used to perform the optimization. A biological objective function, namely the probability of achieving tumor control without causing severe complications in normal tissues, P+, has been used to evaluate six different optimization methods. All six methods have been tested on two different clinically relevant treatment geometries. The results show that optimization with a physical objective function which gives the best possible agreement with the desired dose distribution in the least squares sense, may result in severe loss of complication-free tumor control due to insufficient consideration of the organs at risk. It is generally better to use a physical objective function which minimizes the over-dosage when the desired dose distribution can not be exactly reproduced. In all cases the use of physical objective functions results in a lower probability of controlling the tumor without causing severe normal tissue reactions than if the biological objective function, P+, is used. However, the results also show the importance of accurately accounting for beam divergence, dose build-up, beam attenuation, and lateral scatter during the optimization procedure, particularly when the biological objective function is used. The loss in P+ by assuming that all energy deposition kernels are identical and that all the constituent beams have fixed relative weights can be 15% or more. When lateral scatter is not accounted for during the optimization, serious injury to organs at risk may result. This problem is specially severe for organs that are partly or totally encapsulated by the target volume. For superficial target volumes accurate consideration of the dose build-up of the incident pencil beams is fundamental.

Humans↗

PubMed2002

Test-retest reliability on nine tasks of the Physical Work Performance Evaluation.

The Physical Work Performance Evaluation (PWPE) is one of many functional capacity evaluations (FCEs) currently available to assist with determining injured workers' physical potential to return to work. Previous research has explored interrater reliability, construct and predictive validity of the PWPE. This research examined test-retest reliability on a sample of 24 clients with stable physical injuries who were participating in vocational rehabilitation. Nine of the 21 main tasks of the PWPE were evaluated: lifting floor to waist, bilateral carrying, pushing, sitting, standing, kneeling, stair climbing, repetitive squatting and walking. Kappa scores ranged from 0.19 (error) to 0.77 and percent agreement from 66.7% to 87.5%. The results for kneeling, lifting floor to waist, bilateral carrying and pushing tasks suggest substantial test-retest reliability with moderate reliability also suggested for the standing and repetitive squatting tasks. Self-limiting behavior and alterations in pain scores, position adjustments and movement deviations are seen to be the main contributors to affect scoring between the first and second tests.

Adult↗

PubMed2004

Validation of the Late-Life Function and Disability Instrument.

OBJECTIVES: To assess the concurrent and predictive validity of the Late-Life Function and Disability Instrument (LLFDI). DESIGN: Cross-sectional. SETTING: University-based human physiology laboratory. PARTICIPANTS: One hundred one men and women aged 80.8 +/- 0.4. MEASUREMENTS: A short physical performance battery (SPPB) and a self-paced 400-m walk (400-m W) were used as performance tests of lower extremity function. The LLFDI was used to assess self-reported function and physical disability. Partial correlations adjusted for age and body mass index were used to determine the concurrent and predictive validity of the LLFDI. Statistical significance was accepted at P<.004 using a testwise correction. RESULTS: LLFDI Overall Function scores were moderately associated with the SPPB (r=0.65, P<.001), 400-m W gait speed (r=0.69, P<.001), and measures of lower extremity function. Correlations of the two lower extremity subscores of the LLFDI (correlation coefficient (r)=0.63-0.73, P<.001) were greater than for the LLFDI upper extremity subscores (r=0.19-0.26, P>.004). Performance measures of function predicted disability limitations in the range of r=0.37-0.44 (P<.001) and disability frequency in the range of r=0.16-0.20 (P>.004). CONCLUSION: These findings support the concurrent and predictive validity of the LLFDI. Results support the use of the LLFDI scales as a substitute for physical performance tests when self-report is a preferred data-collection format.

Activities of Daily Living↗

PubMed2006

Muscle performance in patients with fibromyalgia.

INTRODUCTION: Fibromyalgia (FMS) is a syndrome expressed by chronic widespread body pain which leads to reduced physical function and frequent use of healthcare services. This study was performed to examine the muscle performance comprising abdominal and lumbar muscle strength, and measurement of chest expansion in osteoporotic patients with FMS; to evaluate the relation between muscle performance, pain severity, clinical findings and physical activity; and to compare the results with the osteoporotic control group. METHODS: 44 osteoporotic women with FMS and 46 osteoporotic women who were physically inactive underwent measurements of three parameters: abdominal and lumbar muscle strength, and chest expansion. Student's t-test was used for statistical analysis. RESULTS: The strength of lumbar muscles and measurement of chest expansion were significantly decreased in the FMS patients as compared to the controls (p-value is less than 0.001). However, lumbar and abdominal muscles strength was low in both patients and controls. CONCLUSION: Our results indicate that osteoporotic patients with FMS have impairment in strength of lumbar and abdominal muscles and in measurement of chest expansion. Further studies are needed to investigate the mechanism of reduced muscle performance and the effects of aerobic exercise in this patient group.

Abdominal Muscles↗