Ace Fitness Personal Trainer Exam 2023 Latest Update | Verified

A muscle with which of the following muscle arrangements has the LOWEST force production, but the HIGHEST speed of contraction? - ANSWER Longitudinal Which of the following is an example of a multiplanar movement from the anatomical position? - ANSWER Opposition of the thumb The _______________ joint allows inversion and eversion of the foot. - ANSWER Subtalar The _______________ and _______________ are powerful plantar flexors that share an insertion on the Achilles tendon. - ANSWER Gastrocnemius ; Soleus If an individual has tight hip flexors, what condition can occur in the lumbar spine? - ANSWER Lordosis You notice when a client or class participant bends down that his heels cannot maintain contact with the floor. What muscles can you suspect to be tight? - ANSWER Plantar Flexors The _______________ deltoid extends, externally rotates, and horizontally extends the arm at the shoulder. - ANSWER Posterior What is the primary action of the gluteus medius? - ANSWER Hip Abduction What group of muscles works eccentrically during the down-phase of a squat? - ANSWER Gluteus maximus and hamstrings (TRUE or FALSE) In order for an impulse to move from one neuron to another, myelin must be released. - ANSWER False (TRUE or FALSE) Stabilization of the deltoid muscles helps prevent subluxation of the humeral head from the glenoid fossa. - ANSWER False (TRUE or FALSE) The muscles of the rotator cuff originate on the posterior portion of the scapula. - ANSWER False (TRUE or FALSE) When the rhomboids stabilize the scapula, the teres major can internally rotate the humerus. - ANSWER True