Breaking points of human hamstring muscle-tendon complex: A cadaveric study.

Hamstring strain injuries frequently occur during the late swing phase of running; however, the breaking strength of the human hamstring muscle-tendon complexes remains unclear. This study aimed to determine the breaking strength of human hamstring muscle-tendon complexes. To this end, seven cadaveric specimens preserved using the Thiel's method were examined.

Mechanical interactions between the biceps femoris long and short heads: Implications for T-junction hamstring injuries.

Although force transfer during elongation occurs longitudinally and transversely, the influence of transverse force transfer between the biceps femoris long head and short head remains unclear. This study aimed to investigate whether separating the intermuscular connections between the biceps femoris long head and short head alters tension in the biceps femoris long head. Eight human cadaver legs were used, and ultrasonic shear wave elastography measurements were performed under four conditions: (1) intact, (2) removal of all tissues from the skin to the deep fascia, (3) intermuscular dissection, and (4) biceps femoris short head detachment.

Effects of exercise intensity on shear modulus in regional lateral abdominal muscles during the abdominal draw-in maneuver.

The abdominal draw-in maneuver (ADIM) is designed to enhance neuromuscular function of the transversus abdominis (TrA) by distinguishing its activation from the internal oblique (IO) and external oblique (EO). However, a standardized implementation method has not yet been established, and previous studies have not quantitatively defined ADIM exercise intensity or examined regional muscle activation patterns. The lateral abdominal muscles have multiple anatomical attachment sites, suggesting region-specific functional differences.

Region-specific assessment of the mechanical properties of each hamstring muscle in human cadavers using shear wave elastography.

Background: Understanding regional mechanical properties of individual hamstring muscles is essential for accurately interpreting their functional behavior during elongation. However, how mechanical stress varies within muscles during elongation remains unclear. This study aimed to examine whether mechanical stresses differ among the hamstring muscles and at various regions within each muscle.

Passive muscle tension changes in the biceps femoris long head after biceps femoris short head detachment: A human cadaver study.

The functional role of the biceps femoris short head (BFsh) remains unclear. Clarifying the functional role of each biceps femoris head may provide useful insights into the reduction of biceps femoris long head (BFlh) injuries. This study aimed to clarify whether the passive tension in the BFlh would change with BFsh detachment using cadavers.

[A Surgical Case Report of Gastric Cancer Patient with Severe COPD Successfully Controlled by Preoperative Pulmonary Rehabilitation].

A 72-year-old man with a history of chronic obstructive pulmonary disease(COPD)was diagnosed with type 3 gastric cancer at the posterior wall of the gastric body. Although there was no distant metastasis in preoperative imaging tests, pulmonary function test revealed severe obstructive ventilatory impairment, suggesting that the patient had high risks of perioperative pulmonary complications. After treatment for COPD and preoperative pulmonary rehabilitation under hospitalization for 2 weeks, laparoscopic distal gastrectomy plus D2 lymphadenectomy plus Roux-en-Y reconstruction was performed.