CSCS Flashcards
The length-tension relationship of muscle is based on the following fact:
As muscle lengthens, the tension changes and is highest at the middle length.
All of the following sections of the sarcomere shorten during a concentric muscle action EXCEPT the A-band distance between Z-lines H-zone I-band
A-band
All of these factors contribute to venous return EXCEPT the muscle pump the respiratory pump vasoconstriction venoconstriction
vasoconstriction
This ion, stored in the sarcoplasmic reticulum, is released into the sarcoplasm to signal the beginning of the contraction process:
calcium
Which of the following will increase the dissociation between hemoglobin and oxygen? high partial pressure of oxygen increased pH increased temperature low partial pressure of CO2
increased temperature
All else being equal, this type of muscle fiber arrangement will be associated with higher forces:
bipennate
Internal rotation of the hip takes place in this plane:
transverse
The joint involving the femur and tibia is an example of this type of joint:
synovial
Josephine performs a biceps curl, lifting a weight from the extended arm position up to full flexion of the elbow. This movement provides an illustration of this type of lever system:
third-class
You meet up with your friend Heidi in the weight room. You haven’t seen her since she’d injured her leg during track practice. You observe that she’s performing progressive loading exercises with her injured leg. From this observation, you realize that she’s probably in this phase of healing:
remodeling
The primary substrate for a 50-meter sprint is
creatine phosphate
The general recommendation for dietary fat is
30% of total calories
At the beginning of aerobic exercise, before reaching steady state, an individual will be in this state:
oxygen deficit
The hormone used illegally by some athletes to enhance red blood cell production in the body is
erythropoietin
In order to lose 10 pounds, an individual will have to have a deficit of this many calories:
35,000 kilocalories
All of the following are examples of training adaptations for aerobic exercise EXCEPT increased blood volume increased capillary density increased heart rate at a given rate of exercise increased oxygen extraction at a given rate of exercise increased stroke volume at a given rate of exercise
increased heart rate at a given rate of exercise
All of the following are signs of overtraining EXCEPT decreased muscle glycogen decreased performance increased maximal oxygen uptake increased muscle soreness increased submaximal heart rate
increased maximal oxygen uptake
During maximal intensity activities (>90% of maximum) which fibers will be recruited?
Type I, Type IIa, and Type Iib
Which principle of training is based on the idea that one should target the sport-related energy pathways and muscle groups?
specificity
Exercise results in an increase in this system’s activity:
Sympathetic
Adaptations in all of the following contribute to increases in VO2max with endurance training EXCEPT heart rate stroke volume mitochondrial density capillary density
Heart rate
Which of the following is NOT a training goal for an aerobic endurance athlete?
increase VO2submax
An application of the principle of overload for an aerobic endurance athlete would be to have the athlete train
above lactate threshold
Toni wants to increase the speed at the end of her endurance running performance. The best training method for achieving this goal is
Repetition