When playing football games in summer, athletes often have calf muscle cramps due to
A: Local muscle fatigue
B: Insufficient preparation activity
C: Too much electrolyte loss
D: Cold stimulation
A: Local muscle fatigue
B: Insufficient preparation activity
C: Too much electrolyte loss
D: Cold stimulation
举一反三
- Muscle is often divided into striated muscle (or skeletal muscle), smooth muscle and cardiac muscle. Both Smooth muscle and cardiac muscle are under voluntary control.
- Muscles can be divided into ( ) according to the effect on the joints when muscle contract. A: Extensor muscle B: Flexor muscle C: Adductor muscle D: Abductor muscle E: Static muscle
- It was ______ that day . A: much too cold B: too much cold C: very much cold D: much very cold
- When you have a leg cramp, ______ the muscle through gentle massage, or heat the muscle with a warm towel or hot water bottle. A: relax B: ease C: soothe D: comfort
- The teacher often told Mike_______ too much time playing computer games.