What to do when you experience warning signs of overexertion

In addition to seeing a physician for any worrying pain, modifying your workouts is important. Look for qualified personal trainers to help you develop a workout that will keep you healthy and help you avoid injury.

in addition to ....  ～に加えて

physician　/fɪ'zɪʃn/　n)医師

USでフォーマルな言い方 外科医ではなく一般的な医師=doctor

UKではphysicianというと時代遅れ感がありdoctorかGP(General Practitioner)を使う

practitioner   /præk'tɪʃənər/   n)開業医、弁護士

★ a person who works in a profession, especially medicine or low

modify   v)いくぶん変える･修正する

injury　/'ɪndʒəri/　n)傷害･怪我

The National Strength and Conditioning Association (NSCA) and the National Academy of Sports Medicine (NASM) both provide reputable certifications, so trainers who carry those qualifications are a safe bet. In general, look for a trainer who has experience well beyond simply passing computer-based certification tests. A great place to start is with word-of-mouth recommendations through your gym, or through family and friends.

Practicing good self-care is important, too: create a warmup routine that gradually ramps up your mobility and keeps your joints flexible. Take the time to do post-workout recovery exercises ー dynamic stretching and foam roller exercises can go a long way toward preventing injury. Developing a nutritional strategy that supports your workout routine and lifestyle is also helpful.