Muscular strength, benefiting our muscles, joints, ligaments and bones, can be improved by...

1. lifting weights - barbells, dumbbells, kettlebells.

2. body weight exercises like push-ups, pull-ups, hand stands.

3. chores like lifting heavy objects (heavy feed bags or bags of soil for a garden)

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All of the above.

Yes, all of the above activities can help improve muscular strength. Lifting weights using barbells, dumbbells, and kettlebells is a common practice in strength training. Bodyweight exercises like push-ups, pull-ups, and handstands rely on using your own body weight as resistance to build strength. Even everyday activities like chores that involve lifting heavy objects can contribute to improving muscle strength.