A summary of sports events and persons who made news on Friday

'An athlete is never tension-free,' India's champion athlete tells Rediff.com's Laxmi Negi.

Testosterone is a hormone that increases muscle mass, strength and haemoglobin, which affects endurance.

South African Caster Semenya's long and controversial reign as the queen of middle distance running looks set to be ended this year not by a track rival but by a new hyperandrogenism rule that will stop her from running 800 and 1500 metres races.

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Taking up heavy exercise without being conditioned for it may expose one to risks like rhabdo.

Five seeds that can help you lose weight.

Osteoporosis is about brittle bones and can be tackled with regular exercise and a healthy diet.

'What can I do if god made me the way I am?' 'All I want to do is win medals for India and make my country proud.'

The International Association of Athletics Federations (IAAF) chief Sebastian Coe empathises with the plight of Indian sprinter Dutee Chand, whose career has been hit by the controversial 'gender testing' issue, but insists it needs to create a "level-playing field" for all athletes.

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The Olympic champion in women's 800m, feels sorry for Dutee Chand since the Indian, just like her, is facing a gender test row.

'The people booing need to read the reports. He has never committed a crime'

Factbox on American Justin Gatlin who won the 100 metres gold at the World Athletics Championships on Saturday at the age of 35.

In her 'gender case' before the Court of Arbitration for Sports (CAS) in Lausanne, Switzerland, the world's top sports tribunal has suspended IAAF's Hyperandrogenism Policy, under which the AFI suspended Dutee from competitions in 2014.

Dutee, who missed the original entry standard of 11.26 seconds, got an invite from the IAAF as the target number of 56 athletes for women's 100m event was yet to be reached for the August 4-13 World Championships in London.

This issue was raised in the Lok Sabha by BJD member Bhartruhari Mahtab who said Chand has the potential to win a gold medal in Olympics and government must help her in the case.

Case to be re-opened, IAAF to return to CAS

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Alcohol not only dehydrates your skin but also, makes it more prone to breakouts.

Alberto Salazar, the coach of Britain's Olympic champion Mo Farah, has been accused of using prohibited infusions of supplements to improve the performance of his runners, the Sunday Times reported citing a leaked United States Anti-Doping Agency (USADA) report.

Caster Semenya is not excited about the prospect of having her 2012 Olympic and 2011 world championships silver medals upgraded to gold in the wake of Mariya Savinova-Farnosova doping ban, the coach of the South African 800 metres athlete said on Sunday.

Romanian weightlifter Gabriel Sincraian and Russian boxer Misha Aloian have been stripped of their 2016 Olympic medals after failing doping tests at the Games, the Court of Arbitration for Sport said.

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They shut up the naysers with sheer success.

Caster Semenya of South Africa took the gold medal in the Olympic 800 meters on Saturday in a personal best time of 1:55.28 seconds.

Hot favourite Caster Semenya qualified for the women's 800metres semi-finals at the Rio Olympics with supreme ease on Wednesday and will no doubt be braced for another wave of discussions about her gender should she go on to take the gold medal on Saturday.

American Justin Gatlin felt the full force of the crowd's ire on Sunday and scowled back in response before finishing second to Usain Bolt in the Olympic 100metres final to miss his shot at becoming the oldest man to win the event at age 34.

Caster Semenya is seen as a near-certainty for Olympic gold on the track in Rio and her expected success in the 800 metres looks just as sure to bring up further examination of her running credentials.

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Meet first-time Indian athletes hoping to make an impression in Rio.

Former Olympic swimming champion Park Tae-hwan is confident of winning a medal at next month's Rio Games despite the lack of preparation time following his qualification drama.

Russian breastroke swimmer Vitalina Simonova has been suspended for four years after testing positive for a banned substance, the International Swimming Federation (FINA) has announced.

Rio Olympics-bound Indian sprinter Dutee Chand said she is working hard to improve her speed endurance so that she doesn't taper off in the last 40 metres of the 100m event during next month's mega-event.

The Court of Arbitration for Sport has cleared the way for former Olympic swimming champion Park Tae-hwan to compete at the Rio Games after upholding his appeal against a Korean Olympic Committee doping ban, Yonhap news reported on Friday.

India sprinter Dutee Chand, who qualified for the Rio Olympics, at an event in Almaty, Kazakhstan on Saturday, tells Laxmi Negi/Rediff.com that she gives her best when pushed by better and faster athletes.

Dutee Chand qualified for Rio Olympics in the women's 100m event after meeting the qualification mark at XXVI International Meeting G.Kosanov Memorial in Almaty.