99.99% Sure that the answer is A. Extension ladder.
I hope this helped! : )
The act of strengthening the muscles of the abdomen and torso is <u>core strengthening.
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Explanation:
The core is the central part of the body comprised of about 35 (major and minor) muscle groups which connect to the pelvis, spine and hip area. These can be broadly grouped as the abdominals, back extensors, hip, and lateral trunk muscle groups.
The core area is the centre of gravity and stability for all bodily movements.
Strength of core muscles is very important especially to athletes and sports persons. Weakness of core muscles leads to general body weakness and fatigue, muscle injuries like sprains, less endurance and power, back pain, and poor posture.
Core strengthening exercises are done to train the core muscles and strengthen them and work in harmony for better body balance, stability, and movement. Core strengthening exercises include crunches, plank, L-sit, sit-ups, push-ups etc
Answer: 1
Explanation: It’s number 1 because it mostly defines how people think about their exercise more than eating healthy which is why when people work out they watch what they eat as well.
