Different situation, but exactly the same prescription as this answer. Lift, get bigger, then after you have a basic level of strength, train for your specific task of carrying things.

Take up Starting Strength or another all-around heavy compound lifting program (squats, deadlifts, presses, chin-ups) and supplement with farmer's walks and Atlas stone carries/lifts. The SS wiki gives you the bare minimum of information in order to take on the program. The 2nd or 3rd edition book is details the program in full.

Different situation, but exactly the same prescription as this answer. Lift, get bigger, then after you have a basic level of strength, train for your specific task of carrying things.

Take up Starting Strength or another all-around heavy compound lifting program (squats, deadlifts, presses, chin-ups) and supplement with farmer's walks and Atlas stone carries/lifts. The SS wiki gives you the bare minimum of information in order to take on the program. The 2nd or 3rd edition book is details the program in full.

Different situation, but exactly the same prescription as this answer. Lift, get bigger, then after you have a basic level of strength, train for your specific task of carrying things.

Take up Starting Strength or another all-around heavy compound lifting program (squats, deadlifts, presses, chin-ups) and supplement with farmer's walks and Atlas stone carries/lifts.

Different situation, but exactly the same prescription as this answer. Lift, get bigger, then after you have a basic level of strength, train for your specific task of carrying things.

Take up Starting Strength or another all-around heavy compound lifting program (squats, deadlifts, presses, chin-ups) and supplement with farmer's walks and Atlas stone carries/lifts. The SS wiki gives you the bare minimum of information in order to take on the program. The 2nd or 3rd edition book is details the program in full.