Abstract:
OBJECTIVE:Obesity reduces voluntary recruitment of quadriceps during single-joint exercises, but the effects of obesity on quadriceps femoris muscle activation during dynamic daily living tasks, such as sit-to-stand (STS), are largely unknown. The purpose of this study was to determine how obesity affects quadriceps muscle recruitment during STS. METHODS:In this cross-sectional study, 10 women who were lean and 17 women who were obese completed STS from a chair with arms crossed over the chest. Three-dimensional motion analysis was used to define 3 distinct phases (I-III) of the STS cycle. The electromyographic (EMG) activity of the vastus medialis, vastus lateralis, and semitendinosus was measured. RESULTS:STS duration was greater (3.02 [SD = 0.75] seconds vs 1.67 [SD = 0.28] seconds) and peak trunk flexion angle was lower (28.9 degrees [SD = 10.4 degrees] vs 35.8 degrees [SD = 10.1 degrees]) in the women who were obese than in the women who were lean. The mean EMG activity of the knee extensors increased from phase I to phase II in both groups; however, the mean EMG activities of both the vastus medialis (32.1% [SD = 16.6%] vs 47.3% [SD = 19.6%] maximal voluntary isometric contraction) and the vastus lateralis (31.8% [SD = 19.4%] vs 47.5% [SD = 19.6%] maximal voluntary isometric contraction) were significantly lower during phase II in the women who were obese. The mean EMG activity of the semitendinosus increased throughout STS but was not significantly different between the 2 groups. Coactivation of the semitendinosus and knee extensors tended to be greater in the women who were obese but failed to reach statistical significance. CONCLUSIONS:Knee extensor EMG amplitude was reduced in women who were obese during STS, despite reduced trunk flexion. IMPACT:Reduced knee extensor recruitment during STS in obesity may redistribute forces needed to complete this task to other joints. Functional movement training may help improve knee extensor recruitment during STS in people who are obese. LAY SUMMARY:People with obesity often have low quadriceps muscle strength and impaired mobility during daily activities. This study shows that women who are obese have lower voluntary recruitment of quadriceps when rising from a chair than women who are lean do, which could increase workload on hip or ankle muscles during this important daily task. Quadriceps strengthening exercises might improve the ability to rise from sitting to standing.
journal_name
Phys Therjournal_title
Physical therapyauthors
Bollinger LM,Ransom ALdoi
10.1093/ptj/pzaa170subject
Has Abstractpub_date
2020-12-07 00:00:00pages
2134-2143issue
12eissn
0031-9023issn
1538-6724pii
5906047journal_volume
100pub_type
杂志文章相关文献
PHYSICAL THERAPY文献大全abstract:BACKGROUND AND PURPOSE:The purpose of this case report is to describe physical therapy to improve the balance and ambulation of a 16-year-old patient with attention impairment following intracranial hemorrhage. CASE DESCRIPTION:The patient initially had frequent losses of balance, especially in distracting environment...
journal_title:Physical therapy
pub_type: 杂志文章
doi:
更新日期:2002-05-01 00:00:00
abstract::The purposes of this study were 1) to establish the concurrent validity of the universal goniometer and the fluid-based goniometer and 2) to determine the intertester reliability of these two instruments. A correlational study was performed in which two testers used the universal goniometer and the fluid-based goniome...
journal_title:Physical therapy
pub_type: 杂志文章
doi:10.1093/ptj/68.6.966
更新日期:1988-06-01 00:00:00
abstract::Anti-inflammatory modalities are commonly used for the treatment of various musculoskeletal injuries. Although inflammation was originally believed to interfere with skeletal muscle regeneration, several recent studies have highlighted the beneficial effects of inflammatory cells on muscle healing. This discrepancy is...
journal_title:Physical therapy
pub_type: 杂志文章,评审
doi:10.1093/ptj/pzx056
更新日期:2017-08-01 00:00:00
abstract:BACKGROUND AND PURPOSE:This case report describes the use of glossopharyngeal breathing (GPB) and neck accessory muscle breathing (NAMB) in the treatment of an individual who was dependent on a ventilator secondary to a spinal cord injury. CASE DESCRIPTION:The patient was a 19-year-old man with C2 complete tetraplegia...
journal_title:Physical therapy
pub_type: 杂志文章,评审
doi:
更新日期:2002-06-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Decreasing hospital stays for patients with total knee arthroplasties (TKAs) have a direct effect on rehabilitation. The identification of modifiable determinants of postsurgical functional status would help physical therapists plan for discharge from hospitals. The purpose of this study was to i...
journal_title:Physical therapy
pub_type: 杂志文章
doi:
更新日期:2003-08-01 00:00:00
abstract:BACKGROUND:Impaired balance has a significant negative impact on mobility, functional independence, and fall risk in older adults. Although several, well-respected balance measures are currently in use, there is limited evidence regarding the most appropriate measure to assess change in community-dwelling older adults....
journal_title:Physical therapy
pub_type: 杂志文章,随机对照试验
doi:10.2522/ptj.20100398
更新日期:2012-03-01 00:00:00
abstract::Secondary conditions are considered a direct consequence of having a disability, and many are presumed to be preventable. Although a few researchers have noted that people with disabilities are exposed to several secondary conditions, including pain, fatigue, depression, and obesity, what is lacking in the literature ...
journal_title:Physical therapy
pub_type: 杂志文章
doi:10.2522/ptj.20100410
更新日期:2011-12-01 00:00:00
abstract::The purpose of this study was to identify an empirically validated sequence of automatic postural reactions in a sample of 40 nonhandicapped infants. Using a cross-sectional design, we tested infants between the ages of 2 and 10 months for the presence of full and partial righting, equilibrium, and protective reaction...
journal_title:Physical therapy
pub_type: 杂志文章
doi:10.1093/ptj/66.4.531
更新日期:1986-04-01 00:00:00
abstract::The purpose of our study was to describe and compare free-speed gait patterns of healthy young women with healthy elderly women. The evaluation was completed with high-speed cinematography using synchronized front and side views of 26 healthy volunteers. One group was composed of 13 subjects 20 to 35 years of age, and...
journal_title:Physical therapy
pub_type: 杂志文章
doi:10.1093/ptj/66.9.1382
更新日期:1986-09-01 00:00:00
abstract:Background:The Centers for Medicare & Medicaid Services (CMS) introduced functional limitation reporting (FLR) to capture patient progress in functional status in outpatient rehabilitation settings. FLR along with the severity modifier (SM) measure the effectiveness of the rehabilitation services at the physical therap...
journal_title:Physical therapy
pub_type: 杂志文章
doi:10.1093/ptj/pzy104
更新日期:2018-12-01 00:00:00
abstract:BACKGROUND AND PURPOSE:There are some sex differences in the career activities of physical therapists. The purpose of this study was to determine whether these sex differences are reflected in the career expectations of physical therapist students. SUBJECTS:Participants were 919 physical therapist students. METHODS:F...
journal_title:Physical therapy
pub_type: 杂志文章
doi:10.2522/ptj.20060285
更新日期:2007-09-01 00:00:00
abstract::Quality-based care is a hallmark of physical therapy. Treatment effectiveness must be evident to patients, managers, employers, and funders. Quality indicators (QIs) are tools that specify the minimum acceptable standard of practice. They are used to measure health care processes, organizational structures, and outcom...
journal_title:Physical therapy
pub_type: 杂志文章
doi:10.2522/ptj.20150106
更新日期:2016-01-01 00:00:00
abstract:BACKGROUND AND PURPOSE:This qualitative study was designed to explore, identify, and describe clinical decision-making processes used by pediatric physical therapists. SUBJECTS:Clinical decision-making processes of three experienced therapists and three inexperienced therapists were assessed as they worked with 18 chi...
journal_title:Physical therapy
pub_type: 杂志文章
doi:10.1093/ptj/76.1.20
更新日期:1996-01-01 00:00:00
abstract:BACKGROUND:Low back pain is often accepted as a "normal" part of pregnancy. Despite research suggesting that quality of life for women who are pregnant is adversely affected, most are advised to self-manage. Although the use of acupuncture for the management of persistent nonspecific low back pain has been recommended ...
journal_title:Physical therapy
pub_type: 杂志文章,随机对照试验
doi:10.2522/ptj.20140298
更新日期:2015-09-01 00:00:00
abstract:BACKGROUND:Dual-task (DT) training is gaining ground as a physical therapy intervention in people with Parkinson disease (PD). Future studies evaluating the effect of such interventions need reliable outcome measures. To date, the test-retest reliability of DT measures in patients with PD remains largely unknown. OBJE...
journal_title:Physical therapy
pub_type: 杂志文章
doi:10.2522/ptj.20150244
更新日期:2016-08-01 00:00:00
abstract:BACKGROUND:Searching and reading the research literature are essential activities for enhancing the use of research and optimizing the quality of physical therapist practice. OBJECTIVES:The objectives of this study were to identify practitioner, organization, and research characteristics that are associated with searc...
journal_title:Physical therapy
pub_type: 杂志文章
doi:10.2522/ptj.20090081
更新日期:2009-10-01 00:00:00
abstract:BACKGROUND:Limited research exists on the utilization and payments of physical rehabilitation services, especially among individuals with commercial insurance. OBJECTIVE:This study aimed to characterize the utilization and payments of office-based physical rehabilitation services among nonelderly individuals with comm...
journal_title:Physical therapy
pub_type: 杂志文章
doi:10.2522/ptj.20150060
更新日期:2016-02-01 00:00:00
abstract:OBJECTIVE:Identifying subgroups of low back pain (LBP) has the potential to improve prediction of clinical outcomes. Risk stratification is one such strategy that identifies similar characteristics indicative of a common clinical outcome trajectory. The purpose of this study was to determine if an empirically derived s...
journal_title:Physical therapy
pub_type: 杂志文章
doi:10.1093/ptj/pzaa179
更新日期:2021-01-04 00:00:00
abstract::Physical therapists are becoming involved increasingly in malpractice actions. The number of such actions will likely increase as the profession moves towards specialized practice and practice without medical referral. This article is intended to clarify some of the major principles of negligence and malpractice law a...
journal_title:Physical therapy
pub_type: 杂志文章
doi:10.1093/ptj/62.5.604
更新日期:1982-05-01 00:00:00
abstract::Aging skeletal muscle exhibits decreases in muscle mass and force and changes in contractile properties. The effects of aging on the physiological characteristics of skeletal muscle are fiber type specific. This review describes the aging process in skeletal muscle; specifically, the effects of aging on the biochemica...
journal_title:Physical therapy
pub_type: 杂志文章,评审
doi:10.1093/ptj/74.1.71
更新日期:1994-01-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Although physical therapy techniques are used to alleviate pain and stiffness in joint injuries, whether these methods are capable of affecting bone is unknown. For example, can these techniques potentially influence bone formation or resorption? To begin exploring this possibility, this study in...
journal_title:Physical therapy
pub_type: 杂志文章
doi:
更新日期:1999-10-01 00:00:00
abstract::Information contained in a clinical report represents new directions in the practice of physical therapy and provides the stimulus for reseach and growth in the profession. The responsibility of the practitioner to share information on problems and solutions generated in the practice of physical therapy is of paramoun...
journal_title:Physical therapy
pub_type: 杂志文章
doi:10.1093/ptj/60.8.1037
更新日期:1980-08-01 00:00:00
abstract::Sixty-two physical therapy schools were surveyed reageding their teaching of cardiopulmonary resuscitation. Eighty-two percent of the schools responded to the questions and 27 percent indicated no such instruction. Included in this report is a copy of the questionnaire and the results of the survey. The recommendation...
journal_title:Physical therapy
pub_type: 杂志文章
doi:10.1093/ptj/55.7.744
更新日期:1975-07-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Physical therapists routinely observe gait in clinical practice. The purpose of this study was to determine the accuracy and reliability of observational assessments of push-off in gait after stroke. SUBJECTS:Eighteen physical therapists and 11 subjects with hemiplegia following a stroke partici...
journal_title:Physical therapy
pub_type: 杂志文章,多中心研究
doi:
更新日期:2003-02-01 00:00:00
abstract::This article describes the need for a shift in our therapeutic strategies for patients with cerebral palsy. Changes in functional abilities must be stressed in therapy. Coincident with this emphasis must be the development of functional assessments to be used when documenting intervention outcomes. Research on functio...
journal_title:Physical therapy
pub_type: 杂志文章
doi:10.1093/ptj/71.3.244
更新日期:1991-03-01 00:00:00
abstract:OBJECTIVE:Early mobilization is advocated for patients going through abdominal surgery; however, little is known about the patient experience of being mobilized immediately after surgery. The purpose of this study was to explore patient experiences of mobilization immediately after elective abdominal cancer surgery. M...
journal_title:Physical therapy
pub_type: 杂志文章,随机对照试验
doi:10.1093/ptj/pzaa168
更新日期:2020-12-07 00:00:00
abstract::To investigate the relationship of pain and physical dependency to depression, the authors conducted a panel survey of 133 middle-aged and elderly persons with recent exacerbations of various physical illnesses. Of the original 133 subjects, 114 participated in two in-depth personal interviews conducted about three mo...
journal_title:Physical therapy
pub_type: 杂志文章
doi:
更新日期:1988-08-01 00:00:00
abstract::The purposes of this study were to develop a protocol to examine the reliability of manual muscle testing in a clinical setting and to use that protocol to assess the interrater reliability of manually testing the strength of the middle trapezius and gluteus medius muscles. One hundred ten patients with various diagno...
journal_title:Physical therapy
pub_type: 杂志文章
doi:10.1093/ptj/67.7.1072
更新日期:1987-07-01 00:00:00
abstract:Background:The impact of physical therapy on the outcomes of patients with acute low back pain (LBP) stratified by the STart Back Screening Tool (SBST) is unclear. Objective:The purpose of this study was to compare the outcomes of patients with acute LBP who were stratified as medium or high risk. Design:This was a s...
journal_title:Physical therapy
pub_type: 杂志文章,随机对照试验
doi:10.2522/ptj.20160298
更新日期:2017-03-01 00:00:00
abstract:Background:Children with cerebral palsy (CP) characteristically present with impairments in balance. Currently, the pattern and timing of the development of balance ability have not been described for children with CP of varying Gross Motor Function Classification System (GMFCS) levels. Objective:The purpose of this s...
journal_title:Physical therapy
pub_type: 杂志文章
doi:10.1093/ptj/pzy132
更新日期:2019-02-01 00:00:00