AEROBIC |
Energy created with oxygen, or in the presence of oxygen. |
ANAEROBIC |
Energy created without oxygen, or in the absence of oxygen. |
ENDURANCE-STRENGTH |
The ability of a muscle to produce prolonged effort. |
FAST-SLOW-TWITCH FIBER |
A striped type of muscle fiber that exhibits both slow fatigue and quick fatigue characteristics depending on the demands placed upon it. |
FAST-TWITCH FIBER |
One of the two major types of muscle fiber that contracts and fatigues quickly and relies mainly on anaerobic energy. |
FATIGUE |
A generalized or specific feeling of tiredness that may have a multitude of causes both mental and physical. |
HYPERTROPHY |
An increase in the overall size of a tissue. |
POWER-STRENGTH |
The amount of work accomplished by a muscle relative to the duration of the effort (work divided by time). |
SKELETAL MUSCLE |
The most prevalent type of muscle in the body; usually anchored to bone to carry out voluntary movement. |
SLOW-TWITCH FIBER |
One of the two major types of skeletal muscle fiber; it contracts and fatigues slowly and relies mainly on aerobic energy. |
STROKE VOLUME |
The amount of blood ejected by a ventricle of the heart with one beat. |
TESTOSTERONE |
Male growth hormone responsible for muscle growth and masculine characteristics (facial hair, deep voice, aggressiveness, ect.). |