Effects of age and training on skeletal muscle physiology and performance.

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 biochemical, morphological, and physiological characteristics of type I (slow-twitch) fibers and type II (fast-twitch) fibers. The effects of training on specific fiber types are also reviewed. The age-related decrease in maximum isometric force may be due, in part, to a decline in muscle mass. Decreases in muscle mass appear to occur in weight-bearing muscles and are most marked in those with a high proportion of type II fibers. The age-related fiber atrophy contributes to the decline in muscle mass. The decline in fiber size is prominent in type II fibers, whereas type I fibers are less affected. The age-related prolongation in isometric twitch properties may be due, in part, to alteration in the capacity of the sarcoplasmic reticulum for calcium release and recapture. Resistance and endurance training appear to attenuate the age-related alterations in skeletal muscle properties if the stimulus is of a sufficient intensity and duration.

journal_name

Phys Ther

journal_title

Physical therapy

authors

Thompson LV

doi

10.1093/ptj/74.1.71

subject

Has Abstract

pub_date

1994-01-01 00:00:00

pages

71-81

issue

1

eissn

0031-9023

issn

1538-6724

journal_volume

74

pub_type

杂志文章,评审
  • Transdisciplinary therapy model for the infant with Down's syndrome.

    abstract::Following a discussion of the motor deficits commonly associated with Down's syndrome, a transdisciplinary developmental therapy model is proposed for use with infants with Down's syndrome. The model includes components from various existing intervention programs for infants as well as some current therapeutic appraoc...

    journal_title:Physical therapy

    pub_type: 杂志文章

    doi:10.1093/ptj/60.4.420

    authors: Harris SR

    更新日期:1980-04-01 00:00:00

  • Current principles in the nonoperative management of structural adolescent idiopathic scoliosis.

    abstract::Physical therapists routinely identify and manage adolescents with idiopathic scoliosis. Therefore, it is essential that we maintain a current understanding of both the condition and the treatment principles. This paper includes both a discussion of the personal impact on those left untreated and a review of current c...

    journal_title:Physical therapy

    pub_type: 杂志文章,评审

    doi:10.1093/ptj/63.4.512

    authors: Farady JA

    更新日期:1983-04-01 00:00:00

  • Comparison of two outcome measures for infants with cerebral palsy and infants with motor delays.

    abstract:BACKGROUND AND PURPOSE:The purpose of this study was to compare the Gross Motor Function Measure (GMFM) and the Peabody Developmental Gross Motor Scale (PDMS-GM) as measures of change in infants with cerebr-al palsy (CP) and infants with motor delays. We hypothesized that mean change scores would be greater for the GMF...

    journal_title:Physical therapy

    pub_type: 杂志文章

    doi:10.1093/ptj/78.10.1062

    authors: Kolobe TH,Palisano RJ,Stratford PW

    更新日期:1998-10-01 00:00:00

  • Standardization of the continuing care activity measure: a multicenter study to assess reliability, validity, and ability to measure change.

    abstract:BACKGROUND:There is a lack of standardized mobility measures specific to the long-term care (LTC) population. Therefore, the Continuing Care Activity Measure (CCAM) was developed. OBJECTIVE:This study determined levels of reliability, validity for clinical utilization, and sensitivity to change of this measure. DESIG...

    journal_title:Physical therapy

    pub_type: 杂志文章,多中心研究

    doi:10.2522/ptj.20080287

    authors: Huijbregts MP,Teare GF,McCullough C,Kay TM,Streiner D,Wong SK,McEwen SE,Otten I

    更新日期:2009-06-01 00:00:00

  • Reliability and Validity of the Measurement of Scapular Position Using the Protractor Method.

    abstract:BACKGROUND:The protractor method is a proposed clinical assessment tool, the first to measure vertical scapular position, that directly compares scapular and spinal landmarks. This tool has the potential to reliably and accurately measure excessive scapular elevation or depression. OBJECTIVE:The purpose of this study ...

    journal_title:Physical therapy

    pub_type: 杂志文章

    doi:10.2522/ptj.20150144

    authors: O'Shea A,Kelly R,Williams S,McKenna L

    更新日期:2016-04-01 00:00:00

  • Spasticity: its physiology and management. Part I. Neurophysiology of spasticity: classical concepts.

    abstract::Spasticity, seen so frequently in clinical situations, presents motor signs resembling those produced experimentally by transecting the brain stem of a cat at the intercollicular level. This paper reviews experimental results which elucidate the roles of different brain regions in the genesis of classical decerebrate ...

    journal_title:Physical therapy

    pub_type: 杂志文章,评审

    doi:10.1093/ptj/57.4.371

    authors: Bishop B

    更新日期:1977-04-01 00:00:00

  • Relative decreases in knee extension torque with increased knee extension velocities in stroke patients with hemiparesis.

    abstract::I examined the isokinetic knee extension torque (KET) produced by the paretic and nonparetic lower limbs of 27 stroke patients, with hemiparesis, at knee extension velocities (KEVs) of 30 degrees, 60 degrees, 120 degrees, and 180 degrees/sec. The purpose of this study was to determine whether the relative decreases in...

    journal_title:Physical therapy

    pub_type: 杂志文章

    doi:10.1093/ptj/67.8.1218

    authors: Bohannon RW

    更新日期:1987-08-01 00:00:00

  • Instructional style preferences: physical therapy faculty members in the United States.

    abstract::The purpose of this study was to describe the instructional styles of physical therapy faculty in basic professional programs in the United States in the academic year 1977-78. The Instructional Styles Inventory of Canfield and Canfield was used to test 311 respondents (61% of the total basic preparation faculty membe...

    journal_title:Physical therapy

    pub_type: 杂志文章

    doi:10.1093/ptj/60.10.1277

    authors: Payton OD,Hueter AE,McDonald M,Hirt S

    更新日期:1980-10-01 00:00:00

  • Exploration of Functional Limitation Codes for Outpatient Physical Therapy in the Medicare Population: A Retrospective Cohort Study.

    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

    authors: Warren M,Smith HL

    更新日期:2018-12-01 00:00:00

  • Spinal movement and performance of a standing reach task in participants with and without Parkinson disease.

    abstract:BACKGROUND AND PURPOSE:Evidence suggests that individuals with early and mid-stage Parkinson disease (PD) have diminished range of motion (ROM). Spinal ROM influences the ability to function. In this investigation, the authors examined available spinal ROM, segmental excursions (the ROM used) during reaching, and their...

    journal_title:Physical therapy

    pub_type: 杂志文章

    doi:10.1093/ptj/81.8.1400

    authors: Schenkman ML,Clark K,Xie T,Kuchibhatla M,Shinberg M,Ray L

    更新日期:2001-08-01 00:00:00

  • Use of the physical performance test to assess preclinical disability in subjects with asymptomatic carotid artery disease.

    abstract:BACKGROUND AND PURPOSE:The purpose of this study was to determine whether subjects with asymptomatic carotid artery stenosis and occlusion demonstrate deficits in physical performance compared with a comparison group. These deficits may indicate that a person is demonstrating preclinical disability. SUBJECTS:Seventy-o...

    journal_title:Physical therapy

    pub_type: 杂志文章

    doi:

    authors: Landgraff NC,Whitney SL,Rubinstein EN,Yonas H

    更新日期:2006-04-01 00:00:00

  • Dose estimation and surveillance of mechanical loading interventions for bone loss after spinal cord injury.

    abstract:BACKGROUND AND PURPOSE:The interpretation of the results of previous anti-osteoporosis interventions after spinal cord injury (SCI) is undermined by incomplete information about the intervention dose or patient adherence to dose requirements. Rehabilitation research as a whole traditionally has struggled with these sam...

    journal_title:Physical therapy

    pub_type: 杂志文章

    doi:10.2522/ptj.20070224

    authors: Dudley-Javoroski S,Shields RK

    更新日期:2008-03-01 00:00:00

  • Clinical orthopedic medicine course for physical therapy students. Aligning content with current practice.

    abstract::The purpose of our study was to obtain information that would help align instruction in a clinical orthopedic medicine course for physical therapy students with the current practice of physical therapists. We sent a questionnaire concerning treatment of orthopedic conditions to 3,000 physical therapists. Of the 1,804 ...

    journal_title:Physical therapy

    pub_type: 杂志文章

    doi:10.1093/ptj/66.1.66

    authors: Abraham E,Knecht HG,Koenig C

    更新日期:1986-01-01 00:00:00

  • The human movement system: our professional identity.

    abstract::The 2013 House of Delegates of the American Physical Therapy Association adopted a vision statement that addresses the role of physical therapy in transforming society through optimizing movement. The accompanying guidelines address the movement system as key to achieving this vision. The profession has incorporated m...

    journal_title:Physical therapy

    pub_type: 杂志文章,评审

    doi:10.2522/ptj.20130319

    authors: Sahrmann SA

    更新日期:2014-07-01 00:00:00

  • Are maximal inspiratory breathing exercises or incentive spirometry better than early mobilization after cardiopulmonary bypass?

    abstract::Forty-nine adults who had undergone cardiopulmonary bypass surgery were randomly assigned to one of three exercise programs to determine if either maximal inspiratory breathing exercises or incentive spirometry offered a therapeutic advantage over early mobilization alone. After extubation, the patients started their ...

    journal_title:Physical therapy

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1093/ptj/63.5.655

    authors: Dull JL,Dull WL

    更新日期:1983-05-01 00:00:00

  • Professional Standards Review Organizations. Another quality assurance program.

    abstract::A brief history oa quality assurance efforts preceding the Professional Standards Review Organization law is presented. The goals of the legislation and its requirements and procedures are discussed. Particular emphasis is placed on the PSRO requirements for short-stay hospital review which is the area where PSRO effo...

    journal_title:Physical therapy

    pub_type: 杂志文章

    doi:10.1093/ptj/55.12.1315

    authors: Sadin RR

    更新日期:1975-12-01 00:00:00

  • Effect of inherent muscle length on isometric plantar flexion torque in healthy women.

    abstract::This study investigated the relationship between inherent muscle length and torque production in 59 healthy women. We recorded nondominant ankle range-of-motion values for each subject. These values were partitioned into quartiles for two knee positions. Women with "loose" plantar flexor muscles comprised the first qu...

    journal_title:Physical therapy

    pub_type: 杂志文章

    doi:10.1093/ptj/67.8.1191

    authors: Hornsby TM,Nicholson GG,Gossman MR,Culpepper M

    更新日期:1987-08-01 00:00:00

  • Spinal effects of head-down tilting. Part 1--Low back contour changes.

    abstract::The purpose of this study was to compare the effects of two methods of inversion therapy and four common exercise positions on the shape of the low back. We studied 25 healthy subjects in six exercise positions: 1) inverted with lower limbs extended (ILLE), 2) standing, 3) supine, 4) inverted with lower limbs flexed (...

    journal_title:Physical therapy

    pub_type: 杂志文章

    doi:10.1093/ptj/68.1.60

    authors: Nosse LJ,Sobush DC,McCrimmon C

    更新日期:1988-01-01 00:00:00

  • The relationships among knee extensor torques produced during maximal voluntary contractions under various test conditions.

    abstract:BACKGROUND AND PURPOSE:The purpose of this study was to describe the relationships among measurements of torque produced during selected maximal voluntary contractions of the quadriceps femoris muscles. SUBJECTS:Twenty nondisabled women, ranging in age from 21 to 33 years (X = 25, SD = 3.5), volunteered to participate...

    journal_title:Physical therapy

    pub_type: 杂志文章

    doi:10.1093/ptj/74.7.674

    authors: Kues JM,Rothstein JM,Lamb RL

    更新日期:1994-07-01 00:00:00

  • Central pattern generation of locomotion: a review of the evidence.

    abstract::Neural networks in the spinal cord, referred to as "central pattern generators" (CPGs), are capable of producing rhythmic movements, such as swimming, walking, and hopping, even when isolated from the brain and sensory inputs. This article reviews the evidence for CPGs governing locomotion and addresses other factors,...

    journal_title:Physical therapy

    pub_type: 杂志文章,评审

    doi:10.1093/ptj/82.1.69

    authors: MacKay-Lyons M

    更新日期:2002-01-01 00:00:00

  • Decreased shoulder range of motion on paretic side after stroke.

    abstract::The purposes of this investigation of patients with stroke were to 1) determine and compare shoulder lateral rotation range of motion (SLRROM) measured at the threshold of pain on the paretic and nonparetic sides; 2) establish the intrarater and interrater reliability of the measurements; and 3) determine the relation...

    journal_title:Physical therapy

    pub_type: 杂志文章

    doi:10.1093/ptj/69.9.768

    authors: Andrews AW,Bohannon RW

    更新日期:1989-09-01 00:00:00

  • Perspectives on Spinal Precautions in Patients Who Have Cancer and Spinal Metastasis.

    abstract::Bones are the third most common site for cancer metastases, and the axial skeleton is the most frequent skeletal location. In a postmortem study, bone metastases were reported in 70% of breast and prostate cancer patients. Bone metastases from breast, lung, prostate, thyroid, and kidney cancers account for 80% of all ...

    journal_title:Physical therapy

    pub_type: 杂志文章

    doi:10.1093/ptj/pzz178

    authors: Guo Y,Ngo-Huang AT,Fu JB

    更新日期:2020-03-10 00:00:00

  • Minimal Clinically Important Differences for Measures of Pain, Lung Function, Fatigue, and Functionality in Spinal Cord Injury.

    abstract:OBJECTIVE:The objective of this study was to determine the MCIDs for the numerical pain rating scale (NPRS), peak cough flow (PCF), peak expiratory flow (PEF), fatigue severity scale (FSS), and London chest activities of daily living scale (LCADL) in patients with SCI after rehabilitation. METHODS:Inpatients with SCI ...

    journal_title:Physical therapy

    pub_type: 杂志文章

    doi:10.1093/ptj/pzaa210

    authors: Sobreira M,Almeida MP,Gomes A,Lucas M,Oliveira A,Marques A

    更新日期:2020-12-17 00:00:00

  • Effects of various treadmill interventions on the development of joint kinematics in infants with Down syndrome.

    abstract:BACKGROUND:Infants with Down syndrome (DS) have delayed walking and produce less-coordinated walking patterns. OBJECTIVE:The aim of this study was to investigate whether 2 treadmill interventions would have different influences on the development of joint kinematic patterns in infants with DS. DESIGN:Thirty infants w...

    journal_title:Physical therapy

    pub_type: 杂志文章,随机对照试验

    doi:10.2522/ptj.20090281

    authors: Wu J,Looper J,Ulrich DA,Angulo-Barroso RM

    更新日期:2010-09-01 00:00:00

  • Utilization of physical therapy personnel in one hospital. A work sampling study.

    abstract::The purpose of this study was to illustrate the adaptability and use of work sampling, an industrial engineering technique, as a dependable method for collecting personnel utilization data in the physical therapy department of a general hospital and to demonstrate the concept of work sampling to physical therapy super...

    journal_title:Physical therapy

    pub_type: 杂志文章

    doi:10.1093/ptj/63.7.1108

    authors: Domenech MA,Payton O,Hill J,Shukla RK

    更新日期:1983-07-01 00:00:00

  • Determinants of mobility and self-care in older people with stroke: importance of somatosensory and perceptual functions.

    abstract:BACKGROUND AND PURPOSE:Somatosensory as well as mental impairments are easily overlooked after acute stroke. Furthermore, their associations with activity limitations are not fully understood. The purpose of this study was to examine this association and whether the assessment of somatosensory functions will provide in...

    journal_title:Physical therapy

    pub_type: 杂志文章

    doi:10.2522/ptj.20060349

    authors: Welmer AK,von Arbin M,Murray V,Holmqvist LW,Sommerfeld DK

    更新日期:2007-12-01 00:00:00

  • Health Competency Standards in Physical Therapist Practice.

    abstract::Although the physical therapist profession is the leading established, largely nonpharmacological health profession in the world and is committed to health promotion and noncommunicable disease (NCD) prevention, these have yet to be designated as core physical therapist competencies. Based on findings of 3 Physical Th...

    journal_title:Physical therapy

    pub_type: 杂志文章

    doi:10.1093/ptj/pzz087

    authors: Dean E,Skinner M,Myezwa H,Mkumbuzi V,Mostert K,Parra DC,Shirley D,Söderlund A,de Andrade AD,Abaraogu UO,Bruno S,Clark D,Gylfadóttir S,Jones A,Veluswamy SK,Lomi C,Moffat M,Morris D,Stensdotter AK,Wong WP,Global Hea

    更新日期:2019-09-01 00:00:00

  • Objectively Measured Physical Activity and Health-Related Physical Fitness in Secondary School-Aged Male Students With Autism Spectrum Disorders.

    abstract:BACKGROUND:Recent evidence suggests that childhood obesity is increasing in children with typical development (TD) and in children with autism spectrum disorders (ASD). The associations between physical activity (PA) levels and physical fitness components have not yet been objectively examined in this population but ma...

    journal_title:Physical therapy

    pub_type: 杂志文章

    doi:10.2522/ptj.20140353

    authors: Pan CY,Tsai CL,Chu CH,Sung MC,Ma WY,Huang CY

    更新日期:2016-04-01 00:00:00

  • Reproducibility and validity of the 10-meter shuttle ride test in wheelchair-using children and adolescents with cerebral palsy.

    abstract:BACKGROUND:For children with cerebral palsy (CP) who are able to walk or run, the 10-m shuttle run test is currently the test of choice to assess cardiorespiratory fitness. This test, however, has not yet been examined in wheelchair-using youth with CP. OBJECTIVE:The purpose of this study was to investigate the test-r...

    journal_title:Physical therapy

    pub_type: 杂志文章

    doi:10.2522/ptj.20120513

    authors: Verschuren O,Zwinkels M,Ketelaar M,Reijnders-van Son F,Takken T

    更新日期:2013-07-01 00:00:00

  • Pharmacological and nonpharmacological interventions in the treatment of Parkinson's disease.

    abstract::Parkinson's disease is a neurodegenerative disorder of older persons that eventually leads to disability. It is characterized by tremor, rigidity, bradykinesia, and postural instability. Progressive stages can be identified, each with unique problems. The optimal management of Parkinson's disease requires multiple pro...

    journal_title:Physical therapy

    pub_type: 杂志文章,评审

    doi:10.1093/ptj/75.5.363

    authors: Cutson TM,Laub KC,Schenkman M

    更新日期:1995-05-01 00:00:00