[Purpose] This study investigated the effect of chin tuck exercise (CTE) using a neckline slimmer device on suprahyoid (SH) and sternocleidomastoid (SCM) muscle activation in healthy adults. [Subjects and Methods] We measured activation of the SH and SCM muscles using surface electromyography in 20 healthy adults during head lift exercise (HLE) and CTE using a neckline slimmer device. The order...

This study examined the effects of baseline flexibility and vertical jump ability on straight leg raise range of motion (ROM) and counter-movement jump performance (CMJ) following different volumes of stretching and potentiating exercises. ROM and CMJ were measured after two different warm-up protocols involving static stretching and potentiating exercises. Three groups of elite athletes (10 ma...

This study examined the effects of two different warm-up protocols on lower limb power and flexibility in high level athletes. Twenty international level fencers (10 males and 10 females) performed two warm-up protocols that included 5-min light jogging and either short (15s) or long (45s) static stretching exercises for each of the main leg muscle groups (quadriceps, hamstrings and triceps sur...

Improved temporal sequencing of high – intensity muscle contractions prior to the sprint start may maximize motoneuron excitability and may enhance fast twitch fiber recruitment and sprint start effectiveness. The aim of the study was to assess a) the electromyographic activity of the gastrocnemius lateralis, biceps femoris and vastus femoris muscles under exposure to specific voluntary, dynami...

OBJECTIVE To compare venous thrombosis rates among animals treated with aspirin, clopidogrel bisulfate, and ketorolac tromethamine using an anastomotic "tuck" model. DESIGN Single-blind randomized animal study. SETTING An animal laboratory at a tertiary care academic referral center. SUBJECTS Forty-two retired Lewis breeder rats divided into 3 equal groups. INTERVENTIONS Before surgical...

Background: Identifying lower extremity defects during high impact activity, such as landing, especially in young athletes who play team sports, could help to prevent non-contact lower extremity injuries. The Tuck Jump Assessment (TJA) is a screening instrument designed to recognize neuromuscular deficits related to Anterior Cruciate Ligament (ACL) injury. The current study investigated the pre...

Swallowing accelerometry is a biomechanical approach for the assessment of difficulties during deglutition. However, the effects of various swallowing tasks and different anthropometric/demographic variables on the statistical behavior of these accelerometric signals are unknown. In particular, to understand the statistical persistence of these signals, we used detrended fluctuation analysis (D...

Dedicated to my parents, Helene and Stuart Tuck. iv ACKNOWLEDGEMENTS I would like to thank my mother and father, without whose guidance and support I would not be here.

When tripping and falling patients with rheumatoid arthritis may adopt the 'fetal tuck' position to protect their painful deformed hands. There is then a risk of splenic injury by the left elbow, which may not be immediately apparent.

Abstract In cross-country skiing, velocities range from 2 m $${\textrm{s}}^{-1}$$ s - 1 up to more than 20 across undulating terrain, and aerodynamics can, therefore, make a large impact on performance. The aim of this study...