Q.The isokinetic method was developed by: a. HC Buck b. Joy Perrny c. J.J. Perrine d. JJ Coubertin

Strength is the ability of muscles to overcome or resist resistance. In training theory it is classified into three main types:

• Maximum strength — the greatest force the muscles can produce in a single maximal contraction, regardless of time (e.g. a heavy weightlifting lift).
• Explosive strength — the ability to produce a large force very quickly, i.e. a combination of strength and speed (also called power). Examples are the jump for a smash in volleyball, a shot put, a high jump take-off or a sprint start.
• Strength endurance — the ability to apply force repeatedly or sustain it against fatigue over a longer time (e.g. rowing, long-distance swimming, repeated push-ups).

Recognising which type a movement needs lets a coach design the right training: heavy low-rep loads for maximum strength, fast powerful movements and plyometrics for explosive strength, and lighter high-repetition work for strength endurance.