Question

Place a single word or phrase into each sentence to correctly explain isometric and isotonic contractions.
During a(n)
(Click to select)
contraction, the muscle develops tension without changing in length.
Isometric contraction occurs at the
(Click to select)
of a muscle contraction as well as during prolonged activities.
During isotonic contraction, the muscle shortens, even though the level of
(Click to select)
is maintained.
During isotonic contraction, a
(Click to select)
can be moved.
The act of a muscle maintaining tension while it lengthens is called isotonic
(Click to select)
contraction.
During an isotonic eccentric contraction, a muscle is allowed to
(Click to select)
without going limp.

Answer 1

Here are the words or phrases that can be placed in the sentences to correctly explain isometric and isotonic contractions:

1. During a(n) **isometric** contraction, the muscle develops tension without changing in length.
2. Isometric contraction occurs at the **beginning** of a muscle contraction as well as during prolonged activities.
3. During isotonic contraction, the muscle shortens, even though the level of **tension** is maintained.
4. During isotonic contraction, a **load** can be moved.
5. The act of a muscle maintaining tension while it lengthens is called isotonic **eccentric** contraction.
6. During an isotonic eccentric contraction, a muscle is allowed to **lengthen** without going limp.