Karen has just joined a gym and can't wait to get started with her strength training. what should she do first?

Jordan is now 19-years old. as an infant, jordan reached many gross motor skill milestones, such as holding his head up, rolling over, sitting, and standing, at normal times. however, he was considered a "late walker" because he took his first steps at 17 months. by 2 years old, his parents noticed a hyperlordotic posture while he was standing. a gower's sign and trendelenberg gait were noted by age four. throughout his childhood, he suffered progressive muscle weakness, especially in the proximal musculature of the arms, pelvis, and legs. he required orthotic braces to assist his walking and was confined to wheelchair ambulation by age 13. at 16, he was hospitalized with bronchitis requiring antibiotic treatment, but recovered. jordan has a history of progressive muscle weakness, but no history of muscle pain or spasm, chest pain, or irregular heartbeat. the only medications that he normally takes are calcium and fluoride supplements. jordan has three siblings. his older and younger sisters have never had any major medical issues. jordan's older brother is also to a wheelchair with problems similar to jordan's. no other immediate or distant family members have musculoskeletal issues.1. jordan’s history aligns most closely with which diagnosis? a. amyotrophic lateral sclerosisb. multiple sclerosisc. duchenne muscular dystrophyd. myotonic dystrophy2. jordan had a biopsy of the left gastrocnemius muscle when he was 5 years old. based on your answer for his diagnosis, describe the microscopic pathological changes that the pathologist would have noted.3. explain, in your own words, why jordan’s brother appears to have the same disease and why his sisters are unaffected.

A27 year old female client, who weighs 130 lb, claims to be able to lift 85 lb for 10 repetitions on the bench but only completed 6 repetitions. using the correct response for your client's 1 repetition max for bench press, what would her perceived rating be with regards to bench press strength?

[120 total points] (public health) in one of the largest human experiments ever conducted, in 1954 a randomized controlled trial was run to see whether a vaccine developed by a doctor named jonas salk was effective in preventing paralytic polio. a total of 401,974 children (ages 6–9), chosen to be representative of those who might be susceptible to the disease, were randomized to two groups: 200,745 children (the control group c) were injected with a harmless saline solution (a placebo) and the other 201,229 children (the treatment group t) were injected with salk’s vaccine.what was the point of giving saline solution to the children who didn’t get the vaccine? explain briefly.