Mandy Tanny shares the importance of back training for women.Source: Joe Weider’s Muscle (May 1980) Page #38 -Joe Weider's Muscle (May 1980) Page #39 -Joe Weider's Muscle (May 1980) Page #40 -Joe Weider's Muscle (May 1980) Page #151 -Joe Weider's Muscle (May 1980) Page #152 -Joe Weider's Muscle (May 1980)