coelom
Lactic acid causes muscles to ache
The causes of loose abdominal muscles include extreme weight loss and pregnancy.
The muscles do not have enough oxygen for aerobic respiration.
the muscles
H.i.v
Anger causes the release of hormonal signals that cause the muscles to tense up. When the muscles are tensed for too long, this causes fatigue and sore muscles.
The muscles do not have enough oxygen for aerobic respiration.
The muscles do not have enough oxygen for aerobic respiration.
The muscles do not have enough oxygen for aerobic respiration.
Deep through
The muscles do not have enough oxygen for aerobic respiration.