Predicting maximal strength of quadriceps from submaximal performance in individuals with knee joint osteoarthritis

McNair, Peter; Colvin, Matt; Reid, Duncan

doi:10.1002/acr.20368

Cited by 41 publications

(51 citation statements)

References 27 publications

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“…Three diff erent sets of muscles were assessed: (1) pectorals, deltoids, and triceps; (2) latissimus dorsi, deltoids, and biceps brachii; and (3) quadriceps, gluteal muscles, and hamstrings. For participants able to perform repetition maximums that exceeded three at the highest allowable weight that could be selected for the machine, their 3-RM was estimated using the Brzycki equation, which has excellent reliability (ICC: 0.95-0.98) and validity (error rate: 3.0-6.3%) with 1-repetition maximum (1-RM) tests ( McNair, Colvin, & Reid, 2011 ;Abdul-Hameed, Rangra, Shareef, & Hussain, 2012 ). Maximal aerobic capacit y was measured as the maximal oxygen consumption (VO 2 max), which was assessed using a metabolic cart (ParvoMedics TrueOne® 2400; Sandy, UT) and the Bruce protocol multi-staged maximal treadmill test ( Heyward, 2006 ; American College of Sports Medicine, Thompson, Gordon, & Pescatello, 2010 ).…”

Section: Methodsmentioning

confidence: 99%

Are There Relationships between Perceived and Actual Measures of Physical Fitness and Health for Healthy Young Women?

Brewer¹,

Olson²

2015

Comprehensive Psychology

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The purposes were to assess the bivariate and multivariate relationships among the subdomains of physical self-concept, self-esteem, and objective measures of physical fi tness in young healthy female graduate students. Nineteen participants were recruited from a local university and completed the Physical Self-Description Questionnaire-Short Form (PSDQ-S) to assess each individual's perceptions of her global physical self-concept, self-esteem, and physical fi tness. Subsequently, a maximal aerobic capacity and muscular strength tests were completed, and moderate and signifi cant correlations were found between these measures and the corresponding subdomains of the PSDQ-S. Multivariate analyses revealed that age and height but not the physical fi tness tests were signifi cant predictors of physical self-concept, while none of the variables predicted self-esteem.Physical fi tness is defi ned as "a set of outcomes or traits that relate to the ability to perform physical activity ( Welk, 2002 ). Musculoskeletal strength, fl exibility, aerobic capacity, body composition, balance, and agility are the main components of physical fi tness. Since physical fi tness is an outcome of regular physical activity participation, understanding of the factors that promote physical activity participation are paramount. Psychological factors such as physical self-concept and self-esteem have demonstrated relationships with physical activity ( Lemoyne, Valois, & Guay, 2015 ). Physical self-concept is defi ned as individual perceptions of competency regarding one's physical abilities and appearance within the various environments that he or she must function in ( Buckworth & Dishman, 2002 ). This construct relates to perceptions of an individual's ability to execute tasks that require one or more of the components of physical fi tness.The literature suggests a bi-directional relationship between psychological moderators such as physical self-concept on physical activity participation, meaning that as physical self-concept increases, so does physical activity participation and vice-versa ( Bouchard, 2000 ). Physical self-concept comprises several subdomains that include muscular strength, endurance, body-fat, and general health ( ( Agarwal, Bhalla, Kaur, & Babbar, 2013 ) and is lower in girls and women as compared to their male counterparts ( d = 1.17) ( Caglar, 2009 ). From the period of late childhood to early adolescence, girls tend to have lower physical self-concept than boys ( Hayes, Crocker, & Kowalski, 1999;Asci, 2002 ). No established relationship has been reported between physical self-concept and physical fi tness for young women. Physical self-concept and physical activity has been shown to be lower in girls than boys and this pattern of reduced physical self-concept and physical activity persists into young adulthood, as many women tend to pursue higher education, enter the workforce, and or have increased family obligations.Physical self-concept is part of a multidimensional hierarchical model of self which posi...

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Section: Methodsmentioning

confidence: 99%

Are There Relationships between Perceived and Actual Measures of Physical Fitness and Health for Healthy Young Women?

Brewer¹,

Olson²

2015

Comprehensive Psychology

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“…35 However, repetitions completed at different intensities can differ on the basis of characteristics of the person being tested. For example, Richens and Cleather, 36 compared 2 groups of different athletes-weightlifters and endurance runners-and conducted the 1RM test on the leg press and 3 tests to failure at 90%, 80%, and 70% of their 1RM.…”

Section: Discussionmentioning

confidence: 99%

Determination of Shoulder Abduction Strength Using a Submaximal Elastic Band Test

Micheletti

Pastre

Machado

et al. 2017

JPHR

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Background: Testing of muscle strength is important for assessing performance and guiding diagnosis, rehabilitation, wellness, and prevention programs. While isometric or isokinetic testing is considered the gold standard for assessing muscle strength, it is often impractical in settings outside the research laboratory, although more advanced clinics may have these devices. One repetition maximum (RM) testing using elastic bands is a valid alternative, but the high joint and muscle loads of maximal muscle testing can be uncomfortable for people with musculoskeletal pain and it may therefore not reach true maximal values. Consequently, submaximal testing using elastic bands is warranted. Purpose: The purpose of this study is to verify the association between the number of repetitions and intensity (relative shoulder joint torque) for estimation of maximal muscle strength based on submaximal elastic band testing. Study design: Cross-sectional study was conducted among healthy adults. Methods: During 4 separate sessions, 9 male participants performed 1RM testing of unilateral shoulder abduction using elastic bands (TheraBand ® CLX) and repetitions to failure at 3 submaximal levels. Associations between the number of repetitions and intensity were assessed using regression analyses. Results: On the basis of the 3 submaximal levels, the association between the number of repetitions and intensity could be very closely fitted using both first-and second-order polynomials with an explained variance of >98%. The first-order polynomial provided the best estimate of 1RM (i.e. 100% intensity) with a formula intensity of À1.1628 Â Repetitions þ 98.8 (R 2 = .98). Conclusion: During shoulder abduction using an elastic band, the association between repetitions and intensity could be fitted by a simple first-order polynomial. Combined with information on the color of the TheraBand CLX and the height and weight of the person, the aforementioned association can be used to estimate the maximal muscle strength of the shoulder (i.e. maximal shoulder joint torque) based on a submaximal test. Clinical relevance: The possibility of estimating the maximal muscle strength from submaximal tests is pertinent for populations with functional limitations and impairments. In addition, this testing provides a safe alternative to coaches, clinicians, and physiotherapists who are aiming to prescribe training and/or rehabilitation using simple, inexpensive, and reliable equipment.

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“…The isokinetic muscle strength assessment, in which reliability was established, 12 was conducted using a Kin-Com dynamometer (Chattecx Corp, Hixon, the USA) at the Research Centre for Clinical Kinesiology of Cardiff University. The test was carried out using knee extensors and flexors muscles at a velocity of 90º/s and three attempts for each muscle group were taken through concentric isokinetic assessment.…”

Section: Isokinetic Muscle Strength Testingmentioning

confidence: 99%

“…A five-minute rest between each type of exercise was also employed. Depending on subject's perceived level of exertion, the load was then increased by 10 to 20% 12 and the test was repeated. When required, this process was continued until a maximum load was reached that restricted the subject to six repetitions or less, as in the literature.…”

Section: Repetition Maximum Testingmentioning

confidence: 99%

See 1 more Smart Citation

Highintensity strength training in an older population: a preliminary study

Meloa¹,

Sharp²,

Cordeiro³

et al. 2015

Geriatr. Gerontol. Aging

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Predicting maximal strength of quadriceps from submaximal performance in individuals with knee joint osteoarthritis

Cited by 41 publications

References 27 publications

Are There Relationships between Perceived and Actual Measures of Physical Fitness and Health for Healthy Young Women?

Are There Relationships between Perceived and Actual Measures of Physical Fitness and Health for Healthy Young Women?

Determination of Shoulder Abduction Strength Using a Submaximal Elastic Band Test

Highintensity strength training in an older population: a preliminary study

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Predicting maximal strength of quadriceps from submaximal performance in individuals with knee joint osteoarthritis

Cited by 41 publications

References 27 publications

Are There Relationships between Perceived and Actual Measures of Physical Fitness and Health for Healthy Young Women?

Are There Relationships between Perceived and Actual Measures of Physical Fitness and Health for Healthy Young Women?

Determination of Shoulder Abduction Strength Using a Submaximal Elastic Band Test

High­intensity strength training in an older population: a preliminary study

Contact Info

Product

Resources

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Highintensity strength training in an older population: a preliminary study