Sensory and psychological factors predict exercise-induced shoulder injury responses in a high-risk phenotype cohort

The goal of our study was to examine the muscle activity of the shoulder girdle after isokinetic fatigue, which may simulate muscle activities commonly occurring during specific sport-related activities in recreational overhead asymptomatic athletes. We hypothesized that exercise-induced fatigue, reported after isokinetic protocols, may cause a decrease in the median frequency (MF) of the upper trapezius (UT), infraspinatus (IS), and deltoid muscles. Twenty-four male overhead volleyball (n = 8), handball (n = 8), and tennis (n = 8) athletes participated in this study. All subjects were without shoulder injury history. The surface electromyography (SEMG) was collected on the right (dominant) side of the shoulder girdle muscles in the following order: UT, IS and anterior (DA), and posterior deltoideus (DP). The fatigue protocol consisted of three sets of 32 maximum isokinetic concentric contractions while performing shoulder internal and external rotation at an isokinetic speed of 120 o/s. The resultant difference in median frequency (ΔMF) values consistently dropped after the fatiguing tasks across all recorded muscles, in terms of the initial MF (MFINI = 65.1 ± 1.1 Hz) and final MF (MFFIN = 57.9 ± 0.9 Hz), and the main effect of time was significant (F(1,22) = 43.15, p < 0.001). MF values decreased mostly for IS (ΔMFIS = −9.9 ± 1.6 Hz) and DP (ΔMFPD = −9.5 ± 1.9 Hz) muscles, while DA and UT showed smaller changes (ΔMFDA = −6.9 ± 1.5 Hz) and (ΔMFUT = −3.2 ± 1.3 Hz). The results of our study show a meaningful contribution in determining increased fatigue of the shoulder girdle muscles during repeated isokinetic internal-external rotation protocols. We have also demonstrated a significant decrease in MF in all examined muscles, especially IS and DA.

Download Full-text

Chronic urticaria associated with high-risk occupations

10.47183/mes.2021.006 ◽

2021 ◽

Author(s):

NV Mikryukova ◽

NM Kalinina

Keyword(s):

High Risk ◽

Chronic Urticaria ◽

Common Variants ◽

Relevant Research ◽

Research Results ◽

Cholinergic Urticaria ◽

Exercise Induced

In their line of duty, firefighters and rescuers are exposed to a combination of adverse factors, which necessitates monitoring their health. This review covers the most common variants of urticaria associated with high-risk occupations, such as cholinergic urticaria, food-induced anaphylaxis and exercise-induced urticaria, cold and stress-induced urticaria. The analysis includes the relevant research results published up to 2020; the discussion outlines the possible pathogenesis mechanisms of chronic urticaria.

Download Full-text

Comparison of Medical and Surgical Mortality in a High Risk Subset of Coronary Patients with Extreme Degrees of Exercise-Induced Ischemia

Atherosclerosis V ◽

10.1007/978-1-4612-6071-4_8 ◽

1980 ◽

pp. 47-51

Author(s):

Richard R. Miller ◽

Craig M. Pratt

Keyword(s):

High Risk ◽

Surgical Mortality ◽

Coronary Patients ◽

Exercise Induced

Download Full-text

Abstract P289: Understanding Perceived Risk of Type 2 Diabetes in Healthy Middle-aged Adults

Circulation ◽

10.1161/circ.129.suppl_1.p289 ◽

2014 ◽

Vol 129 (suppl_1) ◽

Author(s):

Job G Godino ◽

Esther M van Sluijs ◽

Stephen S Sutton ◽

Simon J Griffin

Keyword(s):

High Risk ◽

Risk Communication ◽

Perceived Risk ◽

Psychological Factors ◽

Health Behaviours ◽

Diabetes Risk ◽

Middle Aged Adults ◽

Risk Reducing ◽

Diabetes Risk Score

Introduction: For type 2 diabetes (T2D) prevention programs to successfully reach their intended targets, high-risk individuals must first be aware that they are at high risk. Greater understanding of factors associated with perceived risk might inform the development of more effective risk communication and prevention efforts. We aimed to determine the perceived risk of T2D in a population-based sample of healthy middle-aged adults and examine its relation to modelled risk, clinical risk factors, and psychological factors theorised to be antecedents of behaviour change. Methods: An exploratory, cross-sectional analysis of perceived lifetime risk of T2D was conducted using baseline data collected from 569 participants in the Diabetes Risk Communication Trial (Cambridgeshire, UK). T2D risk factors were measured during a health assessment and the Framingham Offspring Diabetes Risk Score was used to model risk. Questionnaires assessed various psychological factors. Multivariable regression analyses were used to determine associations with perceived risk. Results: Table 1 shows that participants (mean (SD) age = 48.8 (7.3) years; n (%) male = 265 (47.5); mean (SD) BMI = 26.1 (4.23) kg/m2) with a higher lifetime perceived risk (mean (SD) = 34.8% (24.05%)) were at higher risk according to the Framingham Offspring Diabetes Risk Score (mean (SD) = 11.7% (19.0%)) (p < 0.001). Higher perceived risk was associated with higher body fat percentage, lower self-rated health, higher diabetes-related worry, and lower self-efficacy for adhering to governmental recommendations for physical activity (all p < 0.001). Conclusions: Overestimation of T2D risk is common. Higher perceived risk is associated with higher risk of developing the disease, and decreased likelihood of engagement in risk-reducing health behaviours. Risk communication interventions should target high-risk individuals with messages about the effectiveness of prevention strategies and address ability to engage in risk-reducing health behaviours.

Download Full-text

Psychological factors that predict AIDS high-risk versus AIDS precautionary behavior.

Journal of Consulting and Clinical Psychology ◽

10.1037/0022-006x.58.1.117 ◽

1990 ◽

Vol 58 (1) ◽

pp. 117-120 ◽

Cited By ~ 108

Author(s):

Jeffrey A. Kelly ◽

Janet S. St. Lawrence ◽

Ted L. Brasfield ◽

Audie Lemke ◽

Terry Amidei ◽

...

Keyword(s):

High Risk ◽

Psychological Factors ◽

Precautionary Behavior

Download Full-text

Exaggerated Reactivity to Mental Stress Is Associated With Exercise-Induced Myocardial Ischemia in an Asymptomatic High-Risk Population

Circulation ◽

10.1161/01.cir.96.12.4246 ◽

1997 ◽

Vol 96 (12) ◽

pp. 4246-4253 ◽

Cited By ~ 33

Author(s):

Brian G. Kral ◽

Lewis C. Becker ◽

Roger S. Blumenthal ◽

Thomas Aversano ◽

Lee A. Fleisher ◽

...

Keyword(s):

High Risk ◽

Myocardial Ischemia ◽

Mental Stress ◽

High Risk Population ◽

Risk Population ◽

Exercise Induced

Download Full-text

Analysis of Stand-Up Forklift Operator Injuries in Off-the-Dock and Tip-Over Incidents With a Latched Door on the Operator Access Opening

ASCE-ASME J Risk and Uncert in Engrg Sys Part B Mech Engrg ◽

10.1115/1.4031275 ◽

2016 ◽

Vol 2 (2) ◽

Author(s):

John F. Wiechel ◽

William R. “Mike” Scott

Keyword(s):

Head Injury ◽

High Risk ◽

High Speed ◽

Neck Injury ◽

Thoracic Injury ◽

Shoulder Injury ◽

Test Device ◽

Impact Tests ◽

Hybrid Iii ◽

The Impact

A series of tip-over and off-the-dock impact tests were performed with stand-up forklifts to investigate the potential for injury to the operator of a forklift in these types of accidents, when the forklift is equipped with an operator’s compartment door. One Crown Equipment Company 35RRTT Model and one 35RCTT Model stand-up forklifts were used in the impact tests. The only modification to the forklifts for the tests was the placement of a door on the entrance to the operator’s compartment. A Hybrid III anthropomorphic test device (ATD) was placed in the operator’s compartment as a human surrogate. During each test, head accelerations, chest accelerations, neck loads, and lumbar loads were measured on the ATD. The motion of the forklift and the ATD were filmed with real-time video and high-speed cameras. Results from the impact tests indicate that there is a high risk of head injury in a right-side tip-over accident and a high risk of head injury and neck injury in a left-side tip-over accident. There is a high risk of a head injury, neck injury, and thoracic injury in off-the-dock forks-trailing accidents. In an off-the-dock forks-leading accident, there is a high risk of arm/shoulder injury, head injury, and neck injury. In both tip-over and off-the-dock forks-trailing accidents, there is a high probability of an entrapment injury under the overhead guard on the forklift.

Download Full-text

The Effect of an Operator Compartment Door on Standup Forklift Off-Dock and Tip-Over Injuries

Volume 15: Safety, Reliability and Risk; Virtual Podium (Posters) ◽

10.1115/imece2013-66795 ◽

2013 ◽

Author(s):

John F. Wiechel ◽

William R. (Mike) Scott

Keyword(s):

Head Injury ◽

High Risk ◽

High Speed ◽

Neck Injury ◽

Thoracic Injury ◽

Shoulder Injury ◽

Test Device ◽

Impact Tests ◽

Hybrid Iii ◽

The Impact

A series of tip-over and off-the-dock impact tests were performed with stand-up forklifts in order to investigate the potential for injury to the operator of a forklift in these types of accidents when the forklift is equipped with an operator’s compartment door. One Crown Equipment Company RR Model and one RC Model stand-up forklift were used in the impact tests. The only modification to the forklifts for the tests was the placement of a door on the entrance to the operator’s compartment. A Hybrid III anthropomorphic test device (ATD) was placed in the operator’s compartment as a human surrogate. During each test, head accelerations, chest accelerations, neck loads and lumbar loads were measured on the ATD. The motion of the forklift and the ATD were filmed with video and high-speed cameras. Results from the impact tests indicate that there is a high risk of head injury in a right side tip-over accident and a high risk of head injury and neck injury in a left side tip-over accident. There is a high risk of a head injury, neck injury and thoracic injury in off-the-dock forks-trailing accidents. In an off-the-dock forks-leading accident there is a high risk of arm/shoulder injury, head injury, and neck injury. In both tip-over and off-the-dock forks-trailing accidents there is a high probability of an entrapment injury under the overhead guard on the forklift.

Download Full-text