A girl bought a Lifegear treadmill for Rs 60,000 and diligently walked on it every morning for three months to lose weight. Then, inevitably, the law of marginal utility caught up.

She gradually lost her exercising fervour and discovered a more exciting and practical aspect of the machine. Its handlebar, to be precise. She dries clothes on it. She is fortunate.

If she had used the machine more regularly, she might have hurt herself. Girl merely spent Rs 2,500 to buy her gym machine and diligently used it till her efforts took a tragic turn.

Inspired by TV, she had ordered the ab trainer, which promised her a flat tummy in 10 days. When girl slogged on the machine she injured her back and landed at the physiotherapist's.

"I paid the price for wanting a flat ab without trying to lose weight from my entire body." Enthusiastic, weight-loss machine buyers like that girl are known to have injured their backs, shoulders, hands and legs.

Some have fallen flat on their faces while walking a vibrating treadmill, slipped their discs and hurt their knees. Some develop hernia.