Results 41 to 50 of about 118,342 (207)

Do the effects of vitamin d supplementation on muscle strength differ according to age? [PDF]

open access: yes, 2018
Introduction: Vitamin D plays an important role in musculoskeletal health and its use improves muscle strength. However, the effect of vitamin D use on muscle strength in women of different ages is yet to be investigated.
Bilgilisoy Filiz, M.   +6 more
core   +1 more source

Lower extremity joints and their contributions to whole limb extension

open access: yesInternational Biomechanics, 2020
Lower extremity multi-joint strength curves tend not to evaluate individual joint contributions to endpoint force in maximum effort isometric whole limb extension. Therefore, the purpose of this study was to measure the contribution of the hip, knee, and
J. W. Fox   +4 more
doaj   +1 more source

Which Tests Predict 6-Month Isokinetic Quadriceps Strength After ACL Reconstruction? An Examination of Isometric Quadriceps Strength and Functional Tests at 3 Months

open access: yesInternational Journal of Sports Physical Therapy, 2023
# Background Restoration of quadriceps strength after anterior ligament reconstruction (ACLR) is a persistent challenge for patients and clinicians. Inadequate recovery of quadriceps strength has been linked to increase risk of re-injury.
Nicholas Giampetruzzi   +4 more
doaj   +1 more source

The Assessment of Isometric, Dynamic, and Sports-Specific Upper-Body Strength in Male and Female Competitive Surfers

open access: yesSports, 2018
The primary purpose of this study was to investigate gender differences in the dynamic strength index (DSI): an assessment of upper-body dynamic strength relative to maximal isometric strength.
Joanna Parsonage   +5 more
doaj   +1 more source

The Aging Neuromuscular System and Motor Performance [PDF]

open access: yes, 2016
Age-related changes in the basic functional unit of the neuromuscular system, the motor unit, and its neural inputs have a profound effect on motor function, especially among the expanding number of old (older than ∼60 yr) and very old (older than ∼80 yr)
Hunter, Sandra K.   +2 more
core   +2 more sources

Assessment of Rotator Cuff External Rotation: Isometric vs. Isotonic Testing Modes

open access: yesJournal of Functional Morphology and Kinesiology
Objectives: To assess intra-session reliability of isometric and isotonic shoulder external rotation (ER) strength tests and to compare their outcomes. Methods: Thirty-eight healthy subjects (19 females; 19 males; 25.7 ± 6.0 years; 175 ± 9 cm; 70.3 ± 11 ...
Luca Maestroni   +6 more
doaj   +1 more source

The reliability and validity of a designed setup for the assessment of static back extensor force and endurance in older women with and without hyperkyphosis. [PDF]

open access: yes, 2018
ObjectiveThe purpose of this study was to investigate the intra-rater reliability and validity of a designed load cell setup for the measurement of back extensor muscle force and endurance.ParticipantsThe study sample included 19 older women with ...
Akbarzadeh Baghban, Alireza   +7 more
core   +1 more source

The Reliability and Validity of an Isometric Knee Strength Measurement Device in Older Adult Individuals

open access: yesSensors
This study aims to evaluate the reliability and validity of the Leg Strength Analyzer (IB-LS) in assessing isometric knee flexion and extension strength in elderly adults, compare its performance with that of the CSMI dynamometer, and examine its ...
Jae-Soo Hong   +5 more
doaj   +1 more source

Analysis of grip specificity on force production in grapplers and its effect on bilateral deficit grip specificity and bilateral deficit in force production among grapplers

open access: yesFrontiers in Sports and Active Living, 2023
The use of strength training is important for athletes in combat sports such as judo and jiu-jitsu. Specificity is key when prescribing strength training programs for athletes, considering maximal strength, muscular power and strength-endurance ...
Raquel Escobar-Molina   +5 more
doaj   +1 more source

Performance Fatigability: Mechanisms and Task Specificity [PDF]

open access: yes, 2017
Performance fatigability is characterized as an acute decline in motor performance caused by an exercise-induced reduction in force or power of the involved muscles. Multiple mechanisms contribute to performance fatigability and originate from neural and
Hunter, Sandra K.
core   +2 more sources

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