Could someone explain the difference between these terms?

The thing is, they can do are are used as the same thing most of the time. Very weird, I know, but I suppose people refer to the most popular term to describe what they are training for!

Anyway, in layman's terms, here is what the definitions should be:

Muscular Strength: Generally used by sports people and strength athletes to increase strength in order to apply it to their sport. Can also be deemed as "Strength Training" for body builders - used to pack on mass. Usually its heavy weights vs low reps and high sets.

Muscular Endurance: Can be applied to athletes and people looking to tone up and get fitter through using weights, etc. Generally high reps and fewer sets. The muscles are trained in a way that they can endure longer periods of stress/exercise.

Muscular Power: Similar to strength training in terms of the weights and sets (however, more likely to work within their one-rep max), but this is used by athletes and persons such as power-lifters. Using heavy weights, they will do mainly compound exercises and explosive movements to shift the weights. These training techniques develop the fast-twitch muscle fibres, so Power lifters aren't necessarily big, but they can sure shift some weight - even if it is for only one rep.

Muscular Hypertrophy: This is the act of making your muscles grow in size. (this is where the confusion sets in...) There are 2 types of muscular hypertrophy:

1)Sarcoplasmic - to increase the size of the muscle without necessarily getting any stronger.

2) Myofibrillar - to both increase size and strength of the muscles.

Number 1 is used by bodybuilders and number 2 is used by weightlifters.

The confusing thing is that Hypertrophy is what is being done in Strength, Power and Endurance training (as above) so there really isnt a difference in that respect - only which kind of hypertrophy you are trying to achieve...

I hope this has helped!

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