The sliding filament theory is the explanation for how muscles contract to produce force. As we have mentioned on previous pages, the actin and myosin filaments within the sarcomeres of muscle fibres bind to create cross-bridges and slide past one another, creating a contraction.
In fitness you have three bases. No matter what sport you will have cardio, some form of weightlifting, and you have to maintain your diet.
Define objectives and standards, measure performance, compare progress, take required action.
Answer:
20
Explanation:
Approximately 80% of our water intake comes from drinking water and other beverages, and the other 20% comes from food.
