( ( With side ) ( ( ( ( to ( judges ( front leg ) ) ) ( ( ( extended backwards ) , ) ( arms ( behind ( ( ( the back ) , ) contract ) ) ) ) ) ( ( ( the triceps ) , ) ( ( ( ( ( ( pectoral , ) abdominals ) , ) thigh ) and ) ( calf muscles ) ) ) ) . ) )
(ROOT (SINV (PP (IN With) (NP (NN side))) (VP (PP (TO to) (NP (NNS judges) (NN front) (NN leg))) (VBD extended) (NP (NNS backwards)) (, ,) (NP (NP (NNS arms)) (PP (IN behind) (NP (NP (DT the) (NN back)) (, ,) (NP (NN contract)))))) (NP (NP (DT the) (NNS triceps)) (, ,) (NP (NP (NN pectoral)) (, ,) (NP (NNS abdominals)) (, ,) (NP (NN thigh)) (CC and) (NP (NN calf) (NNS muscles)))) (. .)))
With side to judges front leg extended backwards, arms behind the back, contract the triceps, pectoral, abdominals, thigh and calf muscles.
(ROOT (S (NP (DT The) (NNS triceps)) (VP (VBP help) (S (NP (DT the) (NN body)) (VP (VB extend) (NP (DT the) (NN arm))))) (. .)))