Q.Case Study 2 (accompanied by a sit-up illustration): a. Sit-ups are examples of which kind of strength? b. ___________ Method was developed by J J Perrine in 1960. c. ____________ has no movement or change in size of muscles.
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Start your 14-day free trial to unlock the full solution →a: Strength Endurance. b: Isokinetic Method (though the chapter's body text actually says 1968, not 1960 — a genuine printed discrepancy, flagged honestly). c: Isometric exercise.
a. Sit-ups, performed repeatedly against the resistance of one's own bodyweight until fatigue, fit the chapter's definition of Strength Endurance — "the muscle can overcome resistance under fatigue or for as long as possible," a form of Dynamic (isotonic) strength since the movement is clearly visible.
b. The chapter names J.J. Perrine as the person who introduced the Isokinetic method — but its own body text states the year as 1968, not 1960. This case study's printed "1960" is a genuine discrepancy against the chapter's own earlier text, preserved here exactly as printed rather than silently corrected — the method name (Isokinetic) is still the correct fill-in regardless of which year is used. …
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