The 16-year-old has recently returned from a tricep injury which ruled him out of August's European Championships.

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One routine targets all muscle groups by lifting heavy weights through movements like squats, bench presses, bicep curls, tricep extensions, calf lifts and lateral pull-downs.

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She suggests carrying a resistance band with you to do strength exercises such as bicep curls or tricep extensions while waiting in a doctor's office.

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