Results 21 to 30 of about 2,141,137 (253)

Prevalence and Risk Factors Associated with Anabolic-androgenic Steroid Use: A Cross-sectional Study among Gym Users in Riyadh, Saudi Arabia

open access: yesOman Medical Journal, 2020
Objectives: Anabolic-androgenic steroids (AAS) have been used internationally for enhancing physical appearance and performance despite their significant side effects.
Fares F. Al-Harbi1,2,3*,   +3 more
doaj   +1 more source

Unimanual and Bimanual Weight Perception of Virtual Objects with a new Multi-finger Haptic Interface [PDF]

open access: yes, 2011
Accurate weight perception is important particularly in tasks where the user has to apply vertical forces to ensure safe landing of a fragile object or precise penetration of a surface with a probe.
Manuel Ferre   +11 more
core   +1 more source

Parametric sensitivity study of unmanned buoyancy-lifting aerial vehicle

open access: yesMATEC Web of Conferences, 2018
Buoyancy-lifting aerial vehicle is a new development direction of the near space vehicle. This paper presents two conceptual schemes of unmanned buoyancy-lifting aerial vehicle with different configurations. The general parameter design method is studied,
Ma Chengjing, Zhang Caiwen, Li Guanxiong
doaj   +1 more source

Blood Pressure Increase in Hypertensive Individuals During Resistance Training Protocols With Equated Work to Rest Ratio

open access: yesFrontiers in Physiology, 2020
Introduction: Despite growing evidence regarding the benefits of resistance training in hypertension, the large and abrupt rise of systolic blood pressure (SBP) observed during resistance exercise execution has resulted in concern about its safety ...
Anderson Caetano Paulo   +6 more
doaj   +1 more source

Occupational lifting during pregnancy and child’s birth size in a large cohort study

open access: yesScandinavian Journal of Work, Environment & Health, 2014
OBJECTIVES: It has been suggested that the handling of heavy loads during pregnancy is associated with impaired fetal growth. We examined the association between quantity and frequency of maternal occupational lifting and the child’s size at birth ...
Mette Juhl   +6 more
doaj   +1 more source

Clinical and Radiographic Outcomes of Total Shoulder Arthroplasty With a Nonspherical Humeral Head and Inlay Glenoid in Elite Weight Lifters: A Prospective Case Series

open access: yesOrthopaedic Journal of Sports Medicine, 2021
Background: Weight lifting after total shoulder arthroplasty (TSA) can place significant stresses on implants that could lead to instability, loosening, and increased wear.
Sercan Yalcin MD   +4 more
doaj   +1 more source

THE RELATIONSHIP BETWEEN THE NUMBER OF REPETITIONS PERFORMED AT GIVEN INTENSITIES IS DIFFERENT IN ENDURANCE AND STRENGTH TRAINED ATHLETES

open access: yesBiology of Sport, 2014
Prescribing training intensity and volume is a key problem when designing resistance training programmes. One approach is to base training prescription on the number of repetitions performed at a given percentage of repetition maximum due to the ...
B. Richens, D.J. Cleather
doaj   +1 more source

Comparative analysis of exercise equipment jerk in weightlifting and weight sport

open access: yesPedagogics, Psychology, Medical-Biological Problems of Physical Training and Sports, 2013
The approaches to the analysis of exercise equipment in weightlifting and weight sport. The method of photographic images and analysis videogram movement. Exercise performed once with the weights of 50, 65 and 75% of the maximum limit.
V.Y. Djim
doaj   +1 more source

Lifting wavelet algorithm for freeform surface filtering using a Gaussian prediction operator [PDF]

open access: yes, 2013
The aim of the paper is to investigate a novel lifting wavelet algorithm based on a Gaussian prediction operator to filter freeform surfaces represented by 3D triangular meshes.
Abdul-Rahman, Hussein S.   +2 more
core   +1 more source

Load Weight Estimation in Electric Forklifts via DC–DC Converter Power Signal Analysis of the Electro-Hydraulic Lifting System

open access: yesApplied Sciences
Electric forklifts are increasingly adopted in industrial environments due to their energy efficiency, reduced emissions, and lower operating noise compared to combustion alternatives.
Juan Pablo Acevedo   +5 more
doaj   +1 more source

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